Dunklin County, MO: No Building Permit, No Zoning

Unincorporated Dunklin County, Missouri does not require a county residential building-code permit¹. County zoning remains unconfirmed, while Kennett and Malden issue city building permits and set city zoning^2,3,4,5. Missouri DHSS handles covered septic systems throughout Dunklin County, including incorporated areas⁶.

At a glance

Building permit: No county residential building-code permit; ask Clerk about separate permit orders¹
Zoning: County zoning unconfirmed; Kennett and Malden have city zoning^4,5,7
Septic permit: Missouri DHSS handles covered new systems and repairs⁶
Septic homeowner exemption: A homeowner may install their own permitted system for their own dwelling only⁸
Well permit: Required unless the landowner installs their own well⁹
RV / tiny home living: Occupancy rules unconfirmed; ask the County Commission¹
Property tax rate: About 0.7% of value¹⁰

Who to call

Septic permits

Dunklin County Health Department

On-site wastewater disposal system (septic/OWTS) permits for new systems and major repairs in Dunklin County. Missouri DHSS's statewide OWTS-authority lookup tool separately names the state health department as Dunklin County's permitting authority, which this guide could not reconcile with the county health department's own permit-process page; start here and ask them to redirect you if needed.

573-888-9008

402 Recovery Road, Kennett, MO 63857

Also useful

Dunklin County Emergency Management Agency

Disaster preparedness, response and recovery coordination for Dunklin County. The county's own site does not name a separate floodplain administrator, so this office and the County Commission are the starting points for a flood-related question this guide could not otherwise confirm.

573-888-2937

1175 Floyd Street, Kennett, MO 63857

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Do you need a building permit in Dunklin County, Missouri?

Unincorporated Dunklin County, Missouri does not require a county residential building-code permit.

Unincorporated Dunklin County, Missouri does not require a county residential building-code permit¹. Before construction, ask the Dunklin County Clerk whether a separate county building-permit order applies; we could not confirm an adopted order. Inside Kennett and Malden, city building permits are required for covered work^2,3. Missouri DHSS remains the authority for covered septic systems at county and city addresses⁶. Missouri’s separate agricultural exemption under RSMo 64.620 applies only under a qualifying county planning framework and outside mapped flood-hazard areas; we could not confirm that Dunklin County meets the statutory prerequisites, so ask the County Commission before relying on the exemption¹¹.

Who handles building permits and land-use questions in Dunklin County?

For unincorporated Dunklin County, ask the County Clerk about any recorded building-permit order and the County Commission about zoning; we could not confirm either an operative permit order or an adopted zoning ordinance. Kennett and Malden handle their own building permits^2,3. Missouri DHSS handles covered septic systems throughout Dunklin County; the Dunklin County Health Department is a local contact for the application and site-evaluation process^6,8. MoDOT handles driveway permits for entrances onto Missouri state highways¹².

Does Dunklin County have zoning?

We could not confirm whether unincorporated Dunklin County has an adopted zoning ordinance or map; ask the County Commission about setbacks, minimum lot size and manufactured-home placement before buying⁷. Kennett and Malden set their own zoning inside city limits; municipal zoning does not establish rules for unincorporated land or every other city in Dunklin County^4,5,7. Malden subdivision plats require Planning and Zoning Commission review and City Council approval before recording under the city planning provisions¹³. Missouri DHSS remains the authority for covered septic systems at both county and city addresses⁶.

How do septic permits work in Dunklin County?

Missouri DHSS handles covered septic systems throughout Dunklin County, including incorporated addresses; obtain a construction permit or confirmation of an exemption before installation or repairs.

Missouri DHSS handles covered septic systems throughout Dunklin County, including incorporated addresses; obtain a construction permit or confirmation of an exemption before installation or repairs⁶. The Dunklin County Health Department describes permits for new systems and major repairs serving single-family homes on less than 3 contiguous deeded acres, and multifamily dwellings, businesses and public buildings regardless of acreage⁸. Covered work requires an application, soil morphology test and site evaluation; contact the health department for local guidance⁸. Septic construction, modification and repair application fees have been temporarily suspended since August 28, 2026; the suspension does not waive the permit requirement⁶. A homeowner may install their own permitted system for their personal dwelling while following Missouri requirements⁸. DNR must approve subdivisions, mobile home parks and campgrounds planning onsite wastewater systems⁶.

Can you live in an RV or tiny home on your land in Dunklin County?

We could not confirm Dunklin County rules for living in an RV, tiny home or manufactured home on private land; ask the County Commission about the intended dwelling and temporary occupancy while building. Unconfirmed county zoning does not establish permission for those uses⁷. Inside Kennett and Malden, ask the respective city about zoning for the proposed dwelling^4,5. Missouri DHSS handles covered septic systems throughout Dunklin County, including city addresses; installation or repairs require a construction permit unless the authority confirms an exemption⁶.

How do you build on land in Dunklin County?

Confirm whether the parcel is unincorporated; Kennett and Malden issue their own building permits and set zoning inside city limits.

Confirm whether the parcel is unincorporated; Kennett and Malden issue their own building permits and set zoning inside city limits^2,3,4,5.
For unincorporated land, ask the County Clerk whether a separate building-permit order applies and the County Commission whether zoning applies; the county residential building-code permit answer is no¹.
Contact Missouri DHSS about the septic construction permit or a possible exemption; the Dunklin County Health Department can help with the local application, soil test and site evaluation^6,8.
Obtain Missouri DNR approval for a subdivision, mobile home park or campground using onsite wastewater systems⁶.
Confirm Missouri well and pump permits if a contractor will do the work⁹.
Obtain a Missouri land-disturbance stormwater permit if the project disturbs one acre or more or is part of a qualifying larger plan¹⁴.
Obtain a MoDOT driveway permit for an entrance onto a state highway; direct access to freeway through lanes is prohibited^12,15.

What should you check before you buy land in Dunklin County?

Only about 6.3% of Dunklin County soils are rated not limited for conventional septic drain fields; that does not make septic impossible, but makes a site evaluation essential before committing to a lot^8,10. The land is almost entirely flat, with 99.6% at a slope of 15% or less¹⁰. Missouri requires a permit for floodplain development and a No-Rise Certificate for proposed regulatory-floodway development; we could not confirm Dunklin County’s administrator or application process, so ask the Emergency Management Agency for the responsible office^16,17. If access will connect to a Missouri state highway, obtain the MoDOT driveway permit before construction; direct driveway access to freeway through lanes is not allowed^12,15. The typical property tax bill is about $651 a year at an effective rate near 0.7% of value¹⁰. For a private well, hired construction or pump work requires the applicable Missouri permit, while a landowner may use the stated self-installation exception⁹.

Watch-outs

Missouri DHSS is the septic permitting authority for Dunklin County, including incorporated addresses; do not assume a city building or zoning office also issues the septic permit⁶.
We could not confirm an adopted Dunklin County zoning ordinance or a separate county building-permit order; ask the County Commission about zoning and the County Clerk about recorded permit orders before relying on the county residential building-code permit answer¹.
Farm buildings are exempt from county fire-protection or fire-prevention ordinance regulations and permits, but the separate agricultural zoning exemption requires a qualifying county framework and excludes farm structures in mapped flood-hazard areas; ask the County Commission whether that framework applies in Dunklin County^11,18.
A driveway onto a Missouri state highway needs a MoDOT permit, and direct access to freeway through lanes is prohibited^12,15.
Missouri requires floodplain development approval, but we could not confirm Dunklin County’s administrator or application process; ask the Emergency Management Agency who handles the parcel^16,17.

Sources

18 official pages, each quoted and re-checked · written October 12, 2026

Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Off-grid gear

Going off-grid in Dunklin County means bringing your own water and power. The kit we’d start with:

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Compared with neighboring counties

Like all 6 of its neighbors, Dunklin County requires no county building permit for a home.

Rule	Dunklin County	Pemiscot County	New Madrid County	Butler County	Stoddard County	Ripley County	Mississippi County
Building permit	Not required	Not required	Not required	Not required	Not required	Not required	Not required
County zoning	No	No	Not published	No	Not published	No	Not published
Septic permits	DHSS	MO Dept. of Health & Senior Services	DHSS	DHSS	MO Dept. of Health & Senior Services	County Health Dept.	DHSS

Cities and towns in Dunklin County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet covered: Buffalo Township · Campbell · Clarkton · Clay Township · Cotton Hill Township · Freeborn Township · Holcomb · Holcomb Township · Hornersville · Independence Township · Town of Rives · Salem Township · Senath · Union Township

Answers from the rulebook for Dunklin County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Dunklin County rules

Local zoningVaries (with conditions)
Aggregate local zoning within Dunklin County; incorporated municipalities may enact and administer their own zoning ordinances, while the countywide status of every municipality was not independently resolved.
- Missouri law empowers the legislative bodies of cities, towns, and villages to regulate building and land uses through zoning.
- The City of Kennett has an official municipal-ordinance page linking its current municipal codes, including a Chapter 400 Zoning Code with districts and a zoning map.
- The City of Malden has a comprehensive Zoning Ordinance, adopted by municipal ordinance, with zoning regulations and districts.
- This aggregate claim does not establish that every incorporated place in Dunklin County has zoning or that any municipal ordinance applies outside that municipality.
- Countywide unincorporated zoning remains unresolved by the sources reviewed.
“For the purpose of promoting health, safety, morals or the general welfare of the community, the legislative body of all cities, towns, and villages is hereby empowered to regulate and restrict the height, number of stories, and size of buildings and other structures, the percentage of lot that may be occupied, the size of yards, courts, and other open spaces, the density of population, the preservation of features of historical significance, and the location and use of buildings, structures and land for trade, industry, residence or other purposes.”
revisor.mo.gov ↗Re-checked Oct 9, 2026
Who permits septicState (with conditions)
DHSS-covered onsite wastewater treatment systems in Dunklin County, including single-family residential systems and onsite or cluster systems treating domestic wastewater flows of 3,000 gallons per day or less and dispersing wastewater through soil treatment or absorption systems.
- A construction permit is required before installing or repairing most onsite wastewater treatment systems; some single-family residential lots may be exempt from permitting.
- Work should not begin until a permit has been issued or an exemption to permitting has been confirmed by the appropriate permitting authority.
- DHSS regulations cover single-family residential systems including lagoons and onsite or cluster systems treating domestic wastewater flows of 3,000 gallons per day or less and dispersing wastewater through soil treatment or absorption systems.
- The Department of Natural Resources regulates lagoons serving anything other than single-family residences, systems that treat and discharge into surface waters, systems treating wastewater flows greater than 3,000 gallons per day and dispersing wastewater through soil treatment or absorption systems, and systems treating industrial non-domestic wastewater flows.
- DNR must approve subdivisions, mobile home parks, and campgrounds if the use of onsite wastewater treatment systems is planned.
- The page does not state an exclusion for incorporated municipalities for Dunklin County's DHSS designation; it separately explains that some incorporated areas may be referred back to DHSS when a local permitting authority exists.
- Effective August 28, 2026, application fees associated with onsite sewage disposal system construction, modifications, and repairs are temporarily suspended pending new standards.
domestic wastewater flow covered by DHSS rules: <= 3000 gallons per day (Other wastewater categories are regulated by DNR as stated on the source page.) · application fee suspension effective date: 2026-08-28 (Temporary suspension described on the source page.)
“Agency: DHSS Authority Type: DHSS Address: 930 Wildwood Dr, Jefferson City, MO 65102 County: Dunklin Phone: (573) 751-6095 ext. 5 Website: N/A”
OWTS Construction Permit Process ↗Re-checked Oct 6, 2026
Septic permitRequired
New onsite wastewater disposal systems and major repairs in Dunklin County for single-family dwellings on less than three contiguous deeded acres, and for all multiple-family dwellings, businesses, and public buildings regardless of acreage.
- Permits have been required since January 1, 1996.
- An individual application form, fee, soil morphology test, and site evaluation are required before issuance of a permit to construct a new system or perform major repairs.
- Installation must be performed by a Registered Installer with current Missouri registration.
- A private homeowner may install the homeowner's own permitted system for the homeowner's personal dwelling only, while following Missouri regulations, requirements, and permitting criteria.
- Subdivisions consisting of more than 6 lots must contact the Missouri Department of Natural Resources.
- The current DHSS page states that some single-family residential lots may be exempt from permitting; the appropriate permitting authority must confirm any exemption.
- Effective August 28, 2026, application fees for onsite sewage disposal system construction, modifications, and repairs were temporarily suspended due to changes to RSMo 701.046.
single-family lot threshold: < 3 contiguous deeded acres (The county page states the permit rule for single-family dwellings on less than three acres.) · subdivision contact threshold: > 6 lots (Subdivisions consisting of more than 6 lots must contact Missouri DNR.)
“On-site Wastewater Disposal System Permits have been required by the State of Missouri.”
Sewage ↗Re-checked Sep 11, 2026
Off-grid sanitationLimited
Private homeowner installation of an onsite wastewater system for the homeowner's personal dwelling in Dunklin County.
- The system must be permitted.
- The homeowner exception is limited to the homeowner's personal dwelling.
- All Missouri regulations, requirements, and permitting criteria must be followed.
- The county page separately requires permits for covered new systems and major repairs.
- This claim does not establish permission for composting toilets, hauling, graywater discharge, or other sanitation methods.
“An exemption does exist for a private homeowner to install his/her own permitted system”
dunklincountyhealth.com ↗Re-checked Sep 11, 2026
County-wide zoningAbsent
No planning or zoning office appears among Dunklin County's listed offices, consistent with an unzoned rural Missouri county.
Dunklin County Missouri - County Offices ↗From the county’s own site, awaiting a second reviewer

Missouri rules that apply here

Building permitLimited
Building permits for construction in Missouri: no statewide permit is shown; first and second classification counties may adopt building regulations and permits if voters have approved
- Authority is an option for county commissions in counties of the first and second classification, not a statewide mandate
- A county that had not adopted a building code before August 28, 2001 needs voter approval, voted only by voters outside incorporated territory
- Municipalities and other counties must be checked locally
- This claim is about the county enabling authority only; the state septic rule (RSMo 701.031) was not used as a building-permit requirement
“the county commission in all counties of the first and second classification, as provided by law, is for this purpose empowered, subject to the provisions of subsections 2 and 3 of this section, to adopt by order or ordinance regulations to control the construction”
RSMo 64.170 County commissions control construction - issue building permits ↗Re-checked Nov 6, 2026
Owner-builder exemptionAvailable (with conditions)
A property owner installing, modifying, or repairing that owner's on-site sewage disposal system.
- The owner must comply with RSMo 701.025 to 701.059.
- The statute separately provides that an owner need not obtain a permit or contractor registration merely to clean that owner's on-site sewage disposal system.
“Nothing in sections 701.053 to 701.055 shall preclude property owners from installing, modifying or repairing their own on-site sewage disposal system”
RSMo 701.055 — Property owners may install, modify or clean their own on-site sewage disposal system ↗Re-checked Nov 4, 2026
Building code adoptedPartial
Missouri statewide legal framework for building-code adoption by counties and other communities; the statutes authorize local adoption rather than establishing one uniformly adopted statewide building code.
- County authority under RSMo 64.170 applies to counties of the first and second classification.
- A county that had not adopted a building code before August 28, 2001 must obtain voter approval before adopting under RSMo 64.170 to 64.200.
- The adoption vote is limited to voters in the affected area; a code affecting a county is not voted on by citizens of incorporated territory.
- A county adopting under RSMo 64.180 must use a current nationally recognized building code edition from calendar year 1999 or later, as amended.
- A county building ordinance may not conflict with liquefied petroleum gas installation requirements governed by RSMo 323.020.
- A community may incorporate a code by reference only if it otherwise has legal power to adopt the ordinance.
- A code incorporated by reference must be filed with the community clerk and available for public inspection for 90 days before adoption.
- An ordinance adopting a code by reference must state the penalty separately rather than incorporate the penalty by reference.
- RSMo 67.280 defines community to include any county, fire protection district, or municipality, and municipality to include an incorporated city, town, or village.
“Because fire and building codes are adopted at the local level in Missouri”
RSMo Section 64.170 ↗Re-checked Sep 11, 2026
2 more reviewed findings on this topic
- Partial — Residential building-code adoption by Missouri counties, particularly construction in unincorporated county territory.
  “the county commission in all counties of the first and second classification [...] is for this purpose empowered [...] to adopt [...] regulations”
  RSMo § 64.170 — County commissions control construction; issue building permits ↗Re-checked Oct 1, 2026
- Partial — County adoption of residential building codes in Missouri, with the resulting regulations applicable to unincorporated territory when adopted under the statutory authority.
  “the county commission in all counties of the first and second classification, as provided by law, is for this purpose empowered”
  RSMo Section 64.170 — County commissions control construction; issue building permits ↗Re-checked Oct 1, 2026
InspectionsLimited
Construction, major modification, or major repair of an on-site sewage disposal system for which RSMo 701.046 requires notice and an application; this is not a general statewide inspection rule for all buildings.
- The city, county, or department must receive notice and an opportunity to inspect before completion.
- A registered contractor must notify the authority before 9:00 a.m. on the day before completion; an unregistered person must notify it before 9:00 a.m. on the second day before completion.
- The system must remain available for a complete inspection under the state standard until 3:00 p.m. on the completion day unless the authority confirms earlier inspection and approval.
- The system may not be closed or completed if inspection finds it does not meet the state standard; the authority must provide conspicuous notice at inspection and written confirmation of the result, or of no inspection, within three working days of completion.
“without providing notice and an opportunity for inspection by the city, county or department as provided in this section.”
RSMo 701.050 — Construction or repair notice, requirements and inspection ↗Re-checked Nov 4, 2026
Zoning districtsPartial
Missouri statutory authority for counties to create zoning districts in unincorporated territory; this does not establish or publish the actual zoning districts for any particular county.
- The statute applies to unincorporated territory of counties subject to sections 64.211 to 64.295.
- Actual district boundaries, regulations, and maps depend on county adoption and are not supplied by this statewide statute.
- District regulations must be uniform for each class or kind of building or land use within each district, although regulations may differ between districts.
- The regulations must be made in accordance with a comprehensive plan.
“the unincorporated territory may be divided into districts of such number, shape and area as may be deemed best suited”
RSMo Section 64.261 — Zoning districts, creation, regulations ↗Re-checked Oct 5, 2026
Minimum dwelling sizeDistrict specific (with conditions)
Potential county zoning controls on the size of residential buildings in unincorporated portions of first-class counties other than first-class counties without a charter form of government.
- The county commission is authorized to regulate by order in accordance with a comprehensive plan.
- The statute does not state a statewide minimum dwelling-size measurement.
- The statute expressly excludes incorporated portions of counties and identifies additional agricultural, rice-farming, flood-irrigation, farm-structure, and underground-mining exclusions.
“except in counties of the first class not having a charter form of government [...] in the unincorporated portions of the county [...] size of buildings”
RSMo § 64.090 — Planning and zoning powers of county commission ↗Re-checked Nov 4, 2026
SetbacksSpecified
Size of yards, courts and other open spaces in unincorporated portions of second- and third-class counties with county zoning; setbacks left to such counties
- Power exists only for counties to which sections 64.510 to 64.690 apply under section 64.510
- Exercised only after approval by vote of the people as provided in section 64.530
- Must be done by order of record and in accordance with a comprehensive plan
- Applies only to unincorporated portions of the county
- Does not apply to crops, livestock, orchards, forestry, or farm buildings used for such purposes outside the flood hazard area map area
- Existing lawful uses protected; ordinances adopted before March 4, 1991 unaffected
“the size of yards, courts and other open spaces”
RSMo 64.620 Building restrictions - limitations on regulations (second and third class counties) ↗Re-checked Nov 6, 2026
Lot coverageSpecified
Percentage of lots that may be occupied in unincorporated portions of second- and third-class counties with county zoning; lot coverage left to such counties
- Power exists only for counties to which sections 64.510 to 64.690 apply under section 64.510
- Exercised only after approval by vote of the people as provided in section 64.530
- Must be done by order of record and in accordance with a comprehensive plan
- Applies only to unincorporated portions of the county
- Does not apply to crops, livestock, orchards, forestry, or farm buildings used for such purposes outside the flood hazard area map area
- Existing lawful uses protected; ordinances adopted before March 4, 1991 unaffected
“the percentage of lots that may be occupied”
RSMo 64.620 Building restrictions - limitations on regulations (second and third class counties) ↗Re-checked Nov 6, 2026
Camping on your landLimited
Developments where land is sold or leased for camping in recreational vehicles (recreational developments) under the state wastewater rule 10 CSR 20-6.030; this is a wastewater-disposal rule, not a zoning rule on camping generally
- Applies only when land is sold or leased for the purpose of camping in recreational vehicles.
- To qualify as a recreational development, restrictive covenants must prohibit continuous year-round living on the lot, and no cabins or other structures that could be used for year-round residential purposes are allowed.
- Minimum lot size of 20,000 sq ft applies where individual on-site wastewater treatment facilities are used; no reduction from the minimum lot size determined by the geohydrologic evaluation, though a one-half reduction as indicated by the soils report may be allowed.
- Where sewage dump stations provide collection and treatment, they count as centralized collection and treatment.
- The developer must submit a copy of the restrictive covenants with any plans for dump stations or centralized systems.
- Any residential housing development required to obtain department approval must get written approval before sale or lease of any lot or start of construction.
- Rule text says it does not preclude local, municipal, county or other lawful authority from adopting equal or more stringent subdivision, sewer or on-site system regulations.
- Rule was last amended with an effective date of Jan. 30, 2025.
- The state rule does not itself regulate temporary camping on private land outside such developments; that is left to local zoning.
minimum lot size, recreational development with individual on-site wastewater treatment: >= 20000 square feet (one-half reduction per soils report may be allowed; no reduction from geohydrologic evaluation minimum)
“a development is considered recreational when land is sold or leased for the purpose of camping in recreational vehicles. in order to be considered a recreational development, restrictive covenants must prohibit continuous year-round living on the lot and no cabins or other structures will be allowed that could be used for year-round residential purposes.”
10 CSR 20-6 Permits (incl. 10 CSR 20-6.030 Disposal of Wastewater in Residential Housing Developments), Missouri Secretary of State, Code of State Regulations ↗Re-checked Nov 6, 2026
Septic inspectionLimited
Inspection or evaluation of existing onsite wastewater systems in connection with Missouri real-estate transfers.
- Local public health agencies generally no longer inspect existing systems for real-estate transfers.
- A private licensed inspector may perform an inspection or evaluation.
- A lender, buyer, or other transaction participant may require an assessment.
- Some local standards may be more stringent than state regulations.
- Inspections and evaluations are distinct; an inspection includes a hydraulic test, while an evaluation does not.
“For the most part, local public health agencies no longer inspect existing systems related to real estate transfer. The help of a licensed inspector can be obtained to check the condition of the system.”
Onsite Wastewater Treatment System Inspections Versus Evaluations ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Limited — Inspections of existing onsite sewage systems in connection with property sales statewide in Missouri.
  “Missouri Department of Health and Senior Services' (DHSS) rules governing onsite sewage systems cover minimum construction requirements, system inspections at the time of property sales, and requirements for percolation testers and soil evaluators.”
  health.mo.gov ↗Re-checked Oct 1, 2026
Well permitLimited
Construction or alteration of a public well serving a Missouri public water system.
- Public water systems must receive written approval from the Missouri Department of Natural Resources Public Drinking Water Branch before constructing or altering a public well.
- The requirement does not apply when the system meets the charitable-and-benevolent-organization exemptions in section 640.116, RSMo.
- Anyone proposing to install a public well must contact the department’s regional office for a well-site survey.
- The survey addresses minimum isolation or setback distances from known or potential contaminant sources, including septic tanks, sanitary sewer lines, and landfills.
- Before applying for construction authorization, the public water system must obtain an estimated casing-depth letter from the Missouri Geological Survey Water Resources Center.
- There is no fee for the well-site-survey and estimated-casing-depth-letter services.
- Failure to obtain construction authorization may result in approval delays and possibly require the owner to properly plug the well and drill a new one according to 10 CSR 60-3.
public water system threshold: at least 15 service connections or regularly serves an average of at least 25 individuals daily, at least 60 days per calendar year
“Public water systems must receive written approval from the PDWB before constructing or altering a public well”
Who Regulates Water Wells in Missouri? - PUB4001 ↗Re-checked Oct 5, 2026
3 more reviewed findings on this topic
- Limited — Construction or repair of water wells and installation or repair of water-well pumps in Dunklin County under Missouri statewide rules.
  “A non-restricted water well installation permit is required to construct or repair a water well in Missouri.”
  Water Wells - PUB2945 ↗Re-checked Sep 11, 2026
- Required — A person or contractor conducting regulated work to drill, construct, repair, reconstruct, plug, or install pumps or pumping equipment in a water well, heat-pump well, monitoring well, or related well in Missouri.
  “A non-restricted permit is required to drill, construct, repair, reconstruct, plug, or install pumps or pumping equipment in a well.”
  Well and Pump Installation Contractor Permitting ↗Re-checked Oct 1, 2026
- Limited — Construction or repair of water wells, installation or replacement of pumps, and associated plumbing and electrical work in Missouri.
  “A non-restricted water well installation permit is required to construct or repair a water well in Missouri.”
  Water Wells - PUB2945 ↗Re-checked Oct 5, 2026
Mandatory utility hookupSewer (with conditions)
Missouri state law preserves the authority of specified local governments and districts that own or operate a sewage-collection-and-treatment sewer system to require connection by owners of houses, buildings, or other facilities within that entity's territory.
- This is an authorization for the applicable city, town, village, sewer district, public water supply district, municipality, political subdivision, or district; it is not a statewide mandate that every property connect.
- The entity must own or operate a sewer system providing collection and treatment of sewage.
- The house, building, or other facility must be within the municipality, political subdivision, or district.
- The sewer system must be available.
- The statute identifies sewer districts organized under chapter 204 or chapter 249 and public water supply districts organized under chapter 247 among the entities whose authority is preserved.
“to require the owners of all houses, buildings or other facilities [...] to connect to the sewer system [...] when such sewer system is available.”
Missouri Revisor of Statutes — RSMo § 644.027 ↗Re-checked Nov 4, 2026
Agricultural exemptionConditional
Farm buildings and farm structures used for agricultural purposes in qualifying unincorporated portions of Missouri counties subject to RSMo sections 64.510 to 64.690.
- RSMo section 64.620 is limited to unincorporated portions of counties of the second or third class.
- Sections 64.510 to 64.690 must be applicable to the county as provided in section 64.510.
- Section 64.510 requires approval by vote of the people of the county before the county commission may provide for the county plan.
- The exemption does not apply to incorporated portions of counties.
- The statute also excludes the raising of crops, livestock, orchards, or forestry, and seasonal or temporary rice-farming or flood-irrigation impoundments; the statutory definition limits such berms to no more than eighteen inches high.
- The exemption for erection, maintenance, repair, alteration, or extension of farm buildings or farm structures applies only in an area not within the area shown on the flood hazard area map.
- Existing ordinances or orders adopted before March 4, 1991 are preserved by subsection 4.
- The record does not establish that Dunklin County satisfies the county-classification, voter-approval, and section-64.510 applicability predicates.
rice-farming or flood-irrigation berm height: <= 18 inches (The statutory definition applies to small berms placed around a field to hold water for growing rice or flood irrigation.)
“This section shall not apply to the erection, maintenance, repair, alteration or extension of farm buildings or farm structures used for such purposes in an area not within the area shown on the flood hazard area map.”
RSMo Section 64.620 — Building restrictions — limitations on regulations ↗Re-checked Oct 3, 2026
6 more reviewed findings on this topic
- Available — Farm buildings and farm structures in Dunklin County, including their erection, maintenance, repair, alteration, or extension, to the extent a county fire protection or fire prevention ordinance would otherwise impose regulations or require permits.
  “Notwithstanding any provision of law to the contrary, no fire protection or fire prevention ordinance adopted by any county in this state shall be exercised so as to impose regulations or to require permits with respect to the erection, maintenance, repair, alteration, or extension of farm buildings or farm structures.”
  RSMo Section 64.003 — Farm buildings and farm structures, limitation on certain fire protection or fire prevention ordinances ↗Re-checked Oct 3, 2026
- Available (with conditions) — Erection, maintenance, repair, alteration, or extension of farm buildings or farm structures as against county fire-protection or fire-prevention ordinances.
  “Notwithstanding any provision of law to the contrary, no fire protection or fire prevention ordinance adopted by any county in this state shall be exercised so as to impose regulations or to require permits with respect to the erection, maintenance, repair, alteration, or extension of farm buildings or farm structures.”
  RSMo Section 64.003 — Farm buildings and farm structures ↗Re-checked Sep 11, 2026
- Available (with conditions) — Erection, maintenance, repair, alteration, or extension of farm buildings or farm structures used for agricultural purposes under RSMo section 64.890, outside incorporated portions of counties and outside areas shown on flood hazard area maps.
  “This section shall not apply to the erection, maintenance, repair, alteration or extension of farm buildings or farm structures used for such purposes [...]”
  RSMo Section 64.890 ↗Re-checked Oct 1, 2026
- Available (with conditions) — Farm buildings and farm structures statewide, with respect to county fire-protection and fire-prevention ordinances.
  “no fire protection or fire prevention ordinance adopted by any county in this state shall be exercised so as to impose regulations or to require permits [...]”
  revisor.mo.gov ↗Re-checked Oct 1, 2026
- Available — Erection, maintenance, repair, alteration, or extension of farm buildings or farm structures with respect to county fire-protection or fire-prevention ordinances.
  “Notwithstanding any provision of law to the contrary, no fire protection or fire prevention ordinance adopted by any county in this state shall be exercised so as to impose regulations or to require permits with respect to the erection, maintenance, repair, alteration, or extension of farm buildings or farm structures.”
  RSMo Section 64.003 — Farm buildings and farm structures ↗Re-checked Oct 5, 2026
- Available (with conditions) — Farm buildings and farm structures used for agricultural purposes under the county building and land-use restriction provisions of RSMo sections 64.800 to 64.905.
  “This section shall not apply to the erection, maintenance, repair, alteration or extension of farm buildings or farm structures used for such purposes in an area not within the area shown on the flood hazard area map.”
  RSMo Section 64.890 — Building and land use restrictions; exemptions ↗Re-checked Oct 5, 2026
Subdividing landLimited
Subdivision plats in the unincorporated areas of counties covered by RSMo section 64.070 after the county commission adopts subdivision regulations.
- The county commission must first adopt subdivision regulations.
- The plat must first be submitted to the planning commission.
- If the county planning commission does not report upon the plat within thirty days, it may then be deemed approved.
- If amended or rejected by the planning commission, the action may be overruled and the plat approved only by the county commission, with the reasons for overruling spread upon the county commission minutes.
- The recorder of deeds may not record the plat until receiving a certificate of authority from the county zoning enforcement officer.
- The statute also permits a county planning commission, upon written request of an incorporated area's legislative body where there is no municipal planning commission, to pass upon subdivision plats within that incorporated area; those plats are subject to county planning commission rules and approval procedures.
planning commission reporting period: 30 days (If no report is made, the plat may then be deemed approved.)
“After the county commission shall have adopted such subdivision regulations, no plat of a subdivision of land within the unincorporated area of such county [...]”
RSMo Section 64.070 ↗Re-checked Oct 1, 2026
2 more reviewed findings on this topic
- Regulated (with conditions) — Subdivisions in Missouri where onsite wastewater treatment systems are planned, including developments in Dunklin County.
  “DNR must approve subdivisions, mobile home parks and campgrounds if the use of OWTS is planned. Developers as well as property owners in unapproved developments should contact DNR regarding their residential housing unit requirements.”
  OWTS Construction Permit Process ↗Re-checked Sep 11, 2026
- Limited — Subdivision regulations adopted by Missouri cities, towns, or villages under RSMo section 89.410.
  “The planning commission shall recommend and the council may by ordinance adopt regulations governing the subdivision of land within its jurisdiction.”
  RSMo Section 89.410 ↗Re-checked Oct 1, 2026
Driveway accessRequired
Entrances and driveways connecting to Missouri state highways or otherwise occupying Missouri Highways and Transportation Commission right of way in Dunklin County.
- The cited permit rule applies to entrances within normal access right of way.
- The district has authority to approve entrance requests within normal access right of way.
- A proposed entrance is evaluated for sight distance, spacing, safety, and operational effects.
- If the request does not meet sight-distance requirements, the district may deny it and an administrative appeal process is available.
- For larger developments, a traffic impact study may be required; for small developments generating fewer than 100 vehicles during the peak hour, or roughly 1000 additional vehicles per day, a traffic impact study is normally not required, but access location and design review remains necessary.
traffic impact study threshold: < 100 vehicles during peak hour (A traffic impact study is normally not required below this threshold, but access location and design review remains necessary.) · traffic impact study approximate daily threshold: 1000 additional vehicles per day (The source describes this as roughly equivalent to the peak-hour threshold.)
“The agreement that shall be used when allowing an entrance within normal access right of way is a Permit to Work on Right of Way.”
Category:941 Permits and Access Requests ↗Re-checked Oct 6, 2026
2 more reviewed findings on this topic
- Limited — Direct driveway access to the through lanes of freeways in Dunklin County where the roadway is a Missouri state highway.
  “Direct access is not allowed to the through lanes on freeways since they are designed with full control of access. Access Management Guidelines are used to determine the number of access points provided on all other facilities (i.e. controlled access and normal right of way).”
  233.1 At-Grade Intersections - Driveways and Entrances ↗Re-checked Oct 6, 2026
- Required — Construction or modification of driveways within MoDOT right-of-way statewide.
  “We require you to obtain a permit to work on MoDOT's Right of Way for: Construction of driveways”
  Permits | Missouri Department of Transportation ↗Re-checked Sep 11, 2026
Building in a floodplainLimited
Projects including mining, dredging, building construction, and other dirt-moving activities in designated flood hazard areas within participating Missouri jurisdictions.
- The source describes local county or city flood damage reduction ordinances rather than one uniform statewide ordinance.
- The project must be within a participating jurisdiction.
- The project must be within a designated flood hazard area.
- The cited rule does not apply if either condition is absent.
- Covered projects must not raise flood heights.
“Some jurisdictions (for example, county, city) require any projects in certain floodplains do not raise flood heights.”
Laws and Regulations That Might Affect You if You Mine Sand or Gravel From Missouri Streams ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Required — All development in a Missouri floodplain, administered through the applicable community floodplain permitting process.
  “Regardless, some type of permit MUST be issued for ALL development in the floodplain.”
  Floodplain Forms ↗Re-checked Oct 5, 2026
Permit feesPublished (with conditions)
Missouri Department of Natural Resources air construction permits statewide.
- Fees apply to air construction permits, not to every Missouri building or land-use permit.
- Construction permit fees include a filing fee and an hourly processing fee.
- The filing fee depends on the type of construction permit.
- The listed fees are effective January 1, 2026.
- Fees applicable until December 31, 2025 are available on the Air Construction Permit Fees white sheet.
- A convenience fee is charged for electronic payment.
portable source relocation filing fee: 300 USD · minor permit filing fee: 300 USD · minor permit processing fee: per 100 USD (hour) · general permit filing fee: 700 USD · new source review filing fee: 6000 USD (plus $100 per hour processing fee) · prevention of significant deterioration filing fee: 6000 USD (plus $100 per hour processing fee) · hazardous air pollutant filing fee: 6000 USD (plus $100 per hour processing fee) · temporary or pilot filing fee: 250 USD (plus $100 per hour processing fee)
“Construction permit fees include a filing fee and an hourly processing fee. The filing fee is dependent on the type of construction permit.”
Air Construction Permits ↗Re-checked Sep 11, 2026
2 more reviewed findings on this topic
- Published (with conditions) — Missouri construction land-disturbance stormwater permits, including projects in Dunklin County, that disturb one or more acres or are part of a larger common plan meeting the stated cumulative threshold.
  “Permit Fees Acreage Disturbed | Permit Fee 1 - < 5 acres | $500 [...] 500 acres + | $5,000”
  Construction Land Disturbance Permits ↗Re-checked Sep 11, 2026
- Published (with conditions) — Missouri onsite wastewater treatment system construction, modification, and repair application fees administered under the statewide DHSS OWTS program.
  “Effective August 28, 2026, [...] the application fees associated with on-site sewage disposal system construction, modifications, and repairs will be temporarily suspended.”
  OWTS Construction Permit Process ↗Re-checked Oct 5, 2026
Permit processPublished (with conditions)
Installation or repair of most onsite wastewater treatment systems in Missouri.
- Some single-family residential lots may be exempt from permitting.
- The applicant must determine which agency has permitting authority where the work is being done.
- DHSS permitting may be administered by the DHSS Onsite Program, a local authority under contract, or a local authority via ordinance.
- Work should not begin until a permit has been issued or an exemption has been confirmed.
- DHSS regulates single-family residential systems and onsite or cluster systems treating domestic wastewater flows of 3,000 gallons per day or less that disperse wastewater through soil treatment or absorption systems.
- DNR regulates other systems, including non-single-family lagoons, systems discharging to surface waters, systems over 3,000 gallons per day, and industrial wastewater systems.
- DNR must approve subdivisions, mobile home parks, and campgrounds if OWTS use is planned.
domestic wastewater flow threshold: <= 3000 gallons per day (Systems above this threshold are regulated by DNR when they disperse wastewater through soil treatment or absorption systems.)
“A construction permit is required before installing or repairing most onsite wastewater treatment systems (OWTS). Some single family residential lots may be exempt from permitting.”
OWTS Construction Permit Process ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Published (with conditions) — Permit applications for work on Missouri Department of Transportation right-of-way statewide.
  “Contact the Traffic Specialist a minimum of 48 hours prior to beginning work and for all necessary inspections.”
  Permit Process | Missouri Department of Transportation ↗Re-checked Sep 11, 2026
county zoning authorityLimited
Missouri county zoning authority over unincorporated land.
- RSMo § 64.850 applies to counties of the first class without a charter and counties of the second, third, or fourth class.
- RSMo § 64.620 applies to counties of the second or third class to which §§ 64.510–64.690 apply.
- Adoption under §§ 64.510–64.690 requires approval by vote of the people under § 64.530.
- The authority applies in unincorporated portions and not incorporated portions.
- The regulations must be in accordance with a comprehensive plan.
- Under § 64.090, the zoning power does not apply to raising crops, livestock, orchards, or forestry; seasonal or temporary rice-farming or flood-irrigation impoundments; specified farm structures outside mapped flood-hazard areas; or underground mining entered through shafts outside mapped flood-hazard areas.
- Existing lawful uses and specified public-utility services are protected under the cited statutory schemes.
“the county commission of any county of the first class not having a charter form of government, or of any county of the second, third or fourth class may, after approval by vote of the people as provided in section 64.845, regulate and restrict, by order of record, in the unincorporated portions of the county, the height, number of stories, and size of buildings, the percentage of lots that may be occupied, the size of yards, courts and other open spaces, the density of population, the location and use of buildings, structures and land for trade, industry, residence or other purposes.”
RSMo § 64.850 — County commission may prescribe zoning regulations ↗Re-checked Oct 1, 2026
2 more reviewed findings on this topic
- General — Missouri counties adopting zoning regulations for unincorporated territory.
  “If a majority of the votes cast is in favor of county zoning, the county commission shall proceed with a program of county zoning”
  RSMo § 64.090 — Planning and zoning powers of county commission ↗Re-checked Sep 21, 2026
- Limited — Missouri county zoning of unincorporated land.
  “counties of the second, third or fourth class may, after approval by vote of the people [...] in the unincorporated portions of the county”
  RSMo § 64.090 — Planning and zoning powers of county commission ↗Re-checked Oct 1, 2026
county building authorityLimited
County authority to regulate residential construction and issue building permits in unincorporated areas of Missouri.
- The authority under sections 64.170 to 64.200 applies to counties of the first and second classification.
- A county that had not adopted a building code before August 28, 2001, must obtain voter approval before adopting one under those sections.
- Only voters in the area affected by the proposed code may vote; incorporated-territory citizens cannot vote on a code affecting a county.
- The county commission must hold at least three public hearings and provide the statutory newspaper publication and county posting notices before adoption.
- Regulations adopted under section 64.180 apply to unincorporated territory, except as otherwise provided.
- Adopted or amended codes after August 28, 2001, must use a current, calendar year 1999 or later edition of a nationally recognized building code, as amended.
- A county building ordinance may not conflict with liquefied petroleum gas installations governed by section 323.020.
public hearings before adoption: >= 3 hearings minimum (Section 64.180(3)) · newspaper notice: >= 15 days (Notice of hearing time and place must be published in at least two newspapers having general circulation within the county) · posted notice: >= 15 days (Notice must be posted in four conspicuous places in the county) · minimum nationally recognized building-code edition: >= calendar year 1999 edition year (Applies after August 28, 2001, under section 64.180)
“The regulations adopted shall be applicable to the unincorporated territory of the county, except as otherwise provided herein”
RSMo Section 64.170 — County commissions control construction; issue building permits ↗Re-checked Oct 1, 2026
2 more reviewed findings on this topic
- Limited — County regulation of construction and issuance of building permits for buildings, including residential construction, in Missouri counties, with the practical focus on county-controlled areas outside incorporated territory.
  “the county commission in all counties of the first and second classification [...] is for this purpose empowered [...] to adopt [...] regulations to control the construction”
  RSMo § 64.170 — County commissions control construction and issue building permits ↗Re-checked Sep 21, 2026
- Limited — Missouri counties' authority to require permits and regulate residential construction in unincorporated areas.
  “Before the adoption of such code of regulations, the county commission shall hold at least three public hearings thereon”
  RSMo § 64.170 — County commissions control construction; issue building permits ↗Re-checked Oct 1, 2026

Inside cities and towns in Dunklin County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

Building code adoptedAdopted (with conditions)
Building-code adoption within the incorporated City of Kennett, Dunklin County, Missouri.
- The City of Kennett page describes adopted and approved building codes for the City; this does not establish adoption by Dunklin County or every municipality in the county.
- Applicable code requirements depend on the adopted municipal code provisions and project type.
“The link above goes to an outside page that lists all of the current building codes that the City of Kennett has adopted and approved.”
Ordinances | City of Kennett Missouri ↗Re-checked Oct 1, 2026
Local zoningPresent (with conditions)
Subdivision and planning controls within the City of Malden, a municipality in Dunklin County, Missouri.
- The rule applies within the City of Malden, not countywide or to unincorporated Dunklin County.
- Subdivision plats must be submitted to the Planning and Zoning Commission for a report and recommendation and approved by the City Council before filing or recording after adoption of the specified City Plan.
- The cited chapter includes additional street, drainage, easement, utility, plat-approval, and public-improvement requirements.
plat decision period: 60 days (The period may be extended with the applicant's consent.) · street right-of-way width: >= 50 feet · utility easement width: >= 20 feet (Where the Planning and Zoning Commission determines easements are required; rear-boundary easements are also required by the chapter.) · unapproved-plat penalty: <= 300 USD per lot (The City Council sets the penalty.)
“Enactment. There is hereby established a new comprehensive Zoning Ordinance for the City of Malden, Missouri, as set forth in the text, maps and descriptions which constitute this Chapter.”
Chapter 410 Subdivision Regulations - City of Malden, MO ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Present (with conditions) — Land and development within the incorporated City of Kennett, Dunklin County, Missouri.
  “The Code Enforcement Division helps to protect the City of Kennett public’s well-being and enhance the quality of life by enforcing the health, safety, zoning and sanitation codes.”
  Ordinances | City of Kennett Missouri ↗Re-checked Oct 3, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Certificate of occupancy — Certificates of occupancy for residential buildings in unincorporated Dunklin County, Missouri.
Minimum lot size — Minimum lot size in unincorporated Dunklin County.
Building height — Building height in unincorporated Dunklin County.
Living in an RV — Long-term or permanent occupancy of a recreational vehicle on private land in Dunklin County, including unincorporated areas.
Tiny homes — Occupancy of a tiny home as a dwelling in Dunklin County, including unincorporated areas.

3 more unanswered

Manufactured homes
Accessory dwellings
Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Dunklin County, Missouri

Is Dunklin County a good place to live off-grid or homestead?

Dunklin County scores 54/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost. Watch-outs: strong self-sufficiency basics: 50.2″/yr rainfall with little drought.

How much does land cost in Dunklin County, Missouri?

Land in Dunklin County runs about $6,938 per acre, based on the latest county data.

What is the water situation in Dunklin County?

Dunklin County gets about 50.2" of rain a year, with severe drought in roughly 7.1% of years.

How remote is Dunklin County?

A representative private-land location has about 19,823 people within a 30-minute drive and 846,798 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and land rules in Dunklin County, Missouri