Bolthole Index

Clinton County, Missouri

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

56Index Score / 100
#103 of 115 in Missouri

Clinton County, Missouri requires a building permit before construction begins, and the county has zoning.12 Planning and Zoning issues the building permits and also takes onsite wastewater applications; septic review and inspections run through the Health Department.34

At a glance

Building permit
Required before construction begins1
Zoning
Yes; district rules apply in unincorporated Clinton County2
Septic permit
Required for installation or repair5
Tiny homes
No express tiny-home rule confirmed; dwelling size and district rules still matter6
RV living
Temporary camping outside a regulated park is unconfirmed; ask Planning and Zoning2
Owner-builder
No general exemption confirmed; ask Planning and Zoning before doing your own work7
County-road driveway
Approval required before installing a driveway on a county road8

Who to call

Building permits

Clinton County Planning and Zoning

Building and zoning permits, land-use questions, and onsite wastewater application intake for Clinton County

816-539-3722

[email protected]

207 N. Main St. – Room #3 – Zoning, Plattsburg, MO 64477

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

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

Yes. Clinton County requires a building permit, and the county directs applicants to obtain it before beginning construction.1 The county describes this as a Planning and Zoning permit requirement; we could not confirm that Clinton County has adopted a model residential construction code or a separate general building-inspection schedule. Ask Planning and Zoning what plans, reviews and inspections apply to your exact structure before ordering materials.

Starting first is costly: the county zoning order says permit fees are doubled when an application is filed after construction begins.9 A building application requires scaled plans and a plot plan, so locate property lines, existing improvements, the proposed structure and access before applying.10

Who issues building permits in Clinton County, Missouri?

Clinton County Planning and Zoning issues building permits and tells owners to contact the office before construction begins.3 The same office is the practical starting point for zoning, setbacks, driveway coordination, floodplain questions and onsite wastewater paperwork.10

Call the office before submitting because its official page recommends calling for faster processing.3 Ask which application fits the project, which zoning district covers the parcel, whether a variance or special use is needed, and which drawings must accompany the application. The county order says the Zoning Administrator acts on permit applications by the fifth business day after filing, but an incomplete application or another required approval can still affect the overall schedule.10

Does Clinton County, Missouri have zoning?

Yes. Clinton County is zoned, so a rural parcel is not automatically unrestricted.2 District rules can control uses, lot area, dwelling size, building height and setbacks. One provision uses a five-acre minimum lot size unless the property is in an approved subdivision with an approved community sewer, but the correct minimum depends on the parcel's district.11

The order also contains district-specific dwelling standards: the cited R-1 provision requires at least 950 square feet of living floor area and does not allow trailers or mobile homes.6 Accessory-building setbacks vary with district and lot size, so do not transfer one example to every parcel.12 Have Planning and Zoning confirm the zoning map designation and applicable table before treating a listing's “buildable” description as settled.

How do septic permits work in Clinton County?

A permit is required to install or repair an onsite wastewater system in Clinton County.5 New installations require soil morphology by a licensed soil evaluator, a state-licensed installer, application review, a site pre-inspection and permit issuance before work begins.5 Planning and Zoning receives the paperwork, while review and inspections are done through the Health Department.4

Keep every subsurface component uncovered and give the inspector 24 hours' notice for the final inspection; covering components causes a failed inspection and requires uncovering them.13 Site feasibility deserves attention before purchase because the soil dataset rates zero percent of county soils as free of severe limitations for a conventional drain field.14 That rating does not make septic impossible, but it makes the parcel-specific morphology and system design especially important.

Can you live in an RV or tiny home in Clinton County?

We could not confirm a general rule allowing temporary RV camping on private land outside a regulated mobile-home or travel-trailer park in unincorporated Clinton County. Ask Planning and Zoning about the parcel, intended duration, utility connections and whether the proposed unit is treated as a mobile home, manufactured home or dwelling.

A tiny home is not a workaround for zoning. The county materials do not expressly address tiny homes, while district-specific minimum dwelling sizes still apply; the cited R-1 rule requires at least 950 square feet of living floor area.6 Manufactured homes are generally permitted in residential and agricultural districts if they satisfy the order's standards, while mobile homes are limited to a hardship variance in the agricultural district.15

Building a home in Clinton County: what are the steps?

  1. Ask Clinton County Planning and Zoning to confirm the parcel's zoning district, allowed use, lot requirements and application package.2
  2. Prepare the required scaled building plans and plot plan before filing.10
  3. If the entrance meets a county road, apply for driveway approval and obtain the Highway Engineer's drainage-tube specifications before construction.8 A driveway application costs $50 unless it is filed with the building permit application, when that application carries no charge.8
  4. Complete soil morphology and the onsite wastewater application, then wait for review, pre-inspection and permit issuance.5
  5. Obtain the building permit before starting any construction.1
  6. Keep septic components exposed and arrange the final wastewater inspection.13

What should you check before buying land in Clinton County?

Confirm zoning, legal access, flood exposure, wastewater feasibility and water before closing. Clinton County requires separate development permits for new construction, substantial improvements and manufactured-home placement in mapped Zone A flood areas.16 A new or modified driveway on a state highway instead needs a MoDOT right-of-way permit.17

For septic, make an offer contingent on acceptable soil morphology and a workable system design because the county's soil rating is unfavorable for conventional drain fields.14 We could not confirm a private-well permit rule, so ask Planning and Zoning which state or local office should review the proposed water source. For ownership costs, the county's effective property-tax rate is about 0.9%, and the median annual property-tax bill is about $1,758.1819

Watch-outs

  • Do not begin construction before the permit is issued; late applications trigger doubled permit fees.9
  • A county-road driveway needs county approval, while work in MoDOT right-of-way follows the state permit process.817
  • Temporary RV occupancy, tiny-home treatment, owner-builder exemptions and private-well permitting remain unconfirmed; ask Clinton County Planning and Zoning before relying on any of them.7

Sources

  1. Clinton County Planning & Zoning (2026 county census)
  2. Clinton County Planning & Zoning (2026 county census)
  3. Clinton County Planning and Zoning (clintoncomo.org)
  4. Planning and Zoning | Clinton County Missouri, quoted and re-checked
  5. Planning and Zoning | Clinton County Missouri, quoted and re-checked
  6. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  7. (2026 county census)
  8. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  9. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  10. Planning and Zoning | Clinton County Missouri, quoted and re-checked
  11. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  12. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  13. Planning and Zoning | Clinton County Missouri, quoted and re-checked
  14. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  15. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  16. Clinton County Zoning Order Amended 06-11-2026, quoted and re-checked
  17. Permits | Missouri Department of Transportation (Missouri statewide rule), quoted and re-checked
  18. Effective property tax rate: Bolthole Index county data
  19. Median property tax bill: Bolthole Index county data

Written September 27, 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.

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County locator

Clinton County in Missouri

56
County map
Clinton County highlighted among the Missouri counties · colored by Index score

How Clinton County scores

Seclusion37100% ev.
Self-Sufficiency61100% ev.
Admin Boringness4690% ev.
Durability48100% ev.
Property Autonomy47100% ev.
Carry Cost73100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$297kTypical home
0.9%Property tax
$5,692Land / acre
39"Annual rain
7.1% of yrsSevere drought
10.7 / yr (+9)Mid-century 100°F days
19 daysMid-century dry spell
2.03" (+6.6%)Mid-century 1-day rain
1.7×Wildfire change factor
100%Forward climate coverage
$2,276Home insurance / yr
3.6% / yrInsurance growth
1.24%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
24,293People within 30 min
2,990,224People within 2 hr
35,571Radius comparison (15 mi)
51.4People / sq mi
2.8%Federal land
97%Land at 15% slope or less
0%Septic soil without severe limits
0 acWorkable land screen
17.6%Wooded land
70.6 tonsBiomass / forest ac
53.4°FAvg temp

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Answers from the rulebook for Clinton County

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

Clinton County rules

  • Minimum dwelling sizeSpecified

    Residential and agricultural zoning districts governed by the Clinton County Zoning Order.

    • The minimum varies by district; examples in the order include 950 square feet in R-1 and Agriculture District A and 850 square feet in another district.
    • Additional district-specific exceptions and mobile-home restrictions apply.

    R-1 minimum dwelling size: >= 950 square feet of living floor area (No trailers and/or mobile homes allowed in the cited R-1 provision.)

    “G. Minimum Dwelling Size - Nine hundred fifty (950) sq. ft. of living floor area with no trailers and/or mobile homes allowed.”
  • Minimum lot sizeSpecified

    Lots in county zoning districts and subdivisions governed by the county zoning order.

    • The order provides district-specific lot sizes and exceptions for approved subdivisions with approved community sewer systems.

    example minimum lot area: >= 5 acres (Except in approved subdivisions with approved community sewer systems.)

    “E. Lot Area – All lots shall be a minimum of 5 acres in size except in approved subdivisions with approved community sewer systems.”
  • SetbacksSpecified

    Accessory buildings and other structures in county zoning districts.

    • Setbacks vary by district and lot size.
    • The cited accessory-building rule uses reduced setbacks on lots smaller than five acres.

    accessory building front/rear setback: 50 feet (30 feet on lots less than five acres.) · accessory building side setback: 15 feet (10 feet on lots less than five acres.)

    “All permitted accessory building shall have a Front and rear setback of fifty feet and side setbacks of fifteen feet from all property lines. On lots less than five acres, the front and rear setback should be thirty feet and the side setbacks should be ten feet from all property lines.”
  • Building heightSpecified

    Buildings and structures in county zoning districts.

    • Height varies by district.
    • Height regulations do not apply to farm buildings or farm structures.
    • The order provides exceptions for certain dwellings and appurtenant structures.

    example residential height: <= 35 feet (Certain R-1/R-2 dwellings may receive up to 10 additional feet with two 20-foot side yards, but may not exceed three stories.)

    “No dwelling or other primary structure in the R-1 District shall have a height in excess of thirty-five (35) feet and shall not exceed 2-1/2 stories”
  • Manufactured homesLimited

    Manufactured and mobile homes in county zoning districts.

    • Manufactured homes are generally permitted in residential and agricultural districts under the zoning order.
    • Mobile homes are only by hardship variance in the agricultural district.
    • A qualifying manufactured home must meet the order's width, roof-slope, siding, and foundation requirements.
    • Manufactured homes may be inspected by the Zoning Administrator or supported by a notarized affidavit; an uninhabitable unit is not allowed in unincorporated areas.

    minimum manufactured-home width: > 20 feet (Units 20 feet or less are treated as mobile homes under the order.) · minimum roof slope: 2 ft rise per 12 ft run

    “Note: As a general rule manufactured homes are permitted in residential and agriculturaldistricts. Mobile homes are ONLY by variance because of hardship in the agricultural district (Section 8).”
  • Who permits septicMixed (with conditions)

    On-site wastewater systems in Clinton County.

    • County Planning and Zoning administers the permit process; the county page states that review and inspections are done through the Health Department.
    • State licensing applies to soil evaluators and installers.
    “After a completed application and morphology are submitted to planning, it will be reviewed for proper design, a pre-inspection will take place to inspect the site. Review and inspections are done through the Health Department 816-539-2144.”
  • Septic permitRequired

    Installation or repair of on-site wastewater systems in Clinton County.

    • New installations require soil morphology by a licensed soil evaluator.
    • The installer must be licensed by Missouri.
    • A completed application and morphology must be submitted for review before permit issuance.
    • Construction must not begin before the permit process is completed.

    licensing and inspection fee: 235 USD

    “Permits are required to install or repair on-site wastewater systems”
  • Septic inspectionRequired

    On-site wastewater systems in Clinton County.

    • A pre-inspection occurs after application and soil morphology submission.
    • A final inspection requires 24 hours advance notice.
    • All subsurface components must remain uncovered until inspection; covering them causes a failed inspection and requires uncovering.
    “Notify inspector 24 hours in advance of needed final inspection. All subsurface components must remain uncovered until inspection. Covering of components will result in a failed inspection, and require components to be uncovered for inspection.”
  • Off-grid sanitationLimited

    Individual septic, lateral-field, aerobic-treatment, or lagoon sanitation systems in unincorporated Clinton County.

    • The system must satisfy county zoning requirements and applicable Missouri Department of Health and Senior Services requirements.
    • Soil morphology is required before installation or major repair permits.
    • A holding pond is permitted only when soil morphology dictates it.

    minimum septic tank capacity: >= 1250 gallons

    “All septic systems must have a minimum of a 1250 gallon septic tank with either a soil absorption field, infiltrator system, designed system or a holding pond.”
  • Mandatory utility hookupConditional

    Sewage disposal for buildings, structures, and land uses in unincorporated Clinton County.

    • Allowed methods include sanitary sewer with an approved mechanical treatment plant, sanitary sewer with an approved oxidation basin, an individual septic tank and lateral field approved by the Zoning Administrator, or an aerobic treatment plant approved by the Zoning Administrator.
    • Subdivisions with 25 or more dwelling units must provide mechanical treatment or an oxidation basin.
    • More than six lots in a subdivision must be approved by the Department of Natural Resources.

    subdivision dwelling-unit threshold: >= 25 dwelling units (Mechanical treatment plant or oxidation basin required.)

    “All buildings, structures and uses of land in the unincorporated areas of Clinton County, except farm buildings other than dwellings in District A, shall hereafter be equipped with an adequate, safe and sanitary disposal system for all human domestic and industrial wastes.”
  • Subdividing landRegulated (with conditions)

    Subdivision plats and developments governed by the Clinton County land-subdivision regulations.

    • Preliminary plats must be submitted at least 10 days before the meeting at which approval is requested.
    • Final plats require approval by the Planning and Zoning Commission and Zoning Administrator.
    • Plats involving county roads require review by the Clinton County Highway Director of Operations; special road districts also review when involved.
    • All subdivisions of more than six lots must be approved by the Department of Natural Resources.

    preliminary-plat submission lead time: >= 10 days · DNR approval threshold: > 6 lots

    “Ten (10) prints of a Preliminary Plat of any proposed subdivision shall be submitted to the Zoning Administrator at least ten (10) days before the meeting at which approval is asked.”
  • Driveway accessRequired

    Entrances to lots or agricultural-zoned property adjoining county roads.

    • A drainage tube must be installed according to Clinton County Highway Engineer specifications before construction starts.
    • Specifications are included on the building permit.
    • A driveway application costs $50 unless filed with a building permit application.

    driveway application fee: 50 USD (No charge if filed with a building permit application.)

    “Private or commercial driveways on a Clinton County Road are only permitted after the person or entity requesting the driveway has made an application and received approval for such driveway.”
  • Building in a floodplainRequired

    Development permit applications in mapped or potentially flood-prone areas.

    • The Zoning Administrator reviews all development permit applications to determine whether the site is reasonably safe from flooding.
    • Additional floodplain information, elevation documentation, and other information may be required.
    “Within Zone(s) A on the official map,separate development permits are required for all new construction, substantial improvements and other development, including the placement of manufactured homes.”
  • Permit feesPublished (with conditions)

    County zoning and building permit fees.

    • Permit fees follow the Schedule of Fees in Section 21.
    • If a permit application is filed after construction starts, fees are doubled as an administrative permit fee.
    • The driveway application fee is $50 unless filed with a building permit application, in which case there is no charge for that application.

    driveway application fee: 50 USD (No charge when filed with a building permit application.)

    “The fee for the Application is $50 unless the Application is filed with a building permit application in which case there is no charge for the Application.”
  • Permit processPublished (with conditions)

    County building, zoning, and wastewater permit process.

    • Applicants are directed to contact the Zoning Office before starting construction.
    • Building applications require scaled plans and plot plans.
    • Wastewater applications require morphology, licensed installation, county review, pre-inspection, permit issuance, and final inspection.

    permit action deadline: 5 business days

    “The Zoning Administrator shall be EMPOWERED to ACT within the provisions of this order upon all applications for permits, and the same shall be acted upon not later than the fifth (5th) business day succeeding the day offiling.”
  • Building permitRequired

    County Planning & Zoning states building permits are required and must be obtained before starting any construction project; the county offers building permit applications through the Zoning Office. Note: the state County Building Codes dataset (data.mo.gov iq7s-izvt, 2021) shows no adopted county residential code — the permit requirement is a county zoning/land-use or health-department permit regime rather than IRC code enforcement.

    Clinton County Planning & Zoning ↗Scouted from the county site, not yet independently re-checked

  • County-wide zoningPresent

    County explicitly states it is a Zoned County and administers a countywide Zoning Order with rezone, variance, and special-use processes.

    Clinton County Planning & Zoning ↗Scouted from the county site, not yet independently re-checked

Missouri rules that apply here

  • 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”
  • Agricultural exemptionAvailable (with conditions)

    Erection, maintenance, repair, alteration, or extension of farm buildings or farm structures as against county fire-protection or fire-prevention ordinances.

    • The exemption applies to fire protection or fire prevention ordinances adopted by counties in Missouri.
    • The statutory text addresses farm buildings and farm structures; it does not establish a general exemption from every zoning, building-code, floodplain, septic, or other land-use requirement.
    • Effective August 28, 2025.

    effective date: 2025-08-28

    “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.”
  • county zoning authorityGeneral

    Missouri counties adopting zoning regulations for unincorporated territory.

    • First-class charter counties are empowered under RSMo § 64.090; that section excludes first-class counties without a charter form of government.
    • A first-class noncharter county or a county of the second, third, or fourth class may establish county zoning under RSMo §§ 64.845 to 64.880 only after the zoning question is submitted to county voters and a majority of votes cast favors county zoning.
    • The authority applies to unincorporated portions or territory and does not apply to incorporated portions under § 64.090.
    • Section 64.090 excludes specified agricultural activities and certain farm structures, underground mining, and protects existing lawful uses subject to gradual elimination of nonconforming uses.
    “If a majority of the votes cast is in favor of county zoning, the county commission shall proceed with a program of county zoning”
  • county building authorityLimited

    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.

    • RSMo § 64.170 grants the authority to counties of the first and second classification only.
    • The authority is subject to subsections 2 and 3.
    • A county that had not adopted a building code before August 28, 2001, under §§ 64.170 to 64.200, lacks authority to adopt one under those sections unless voters approve it.
    • The building-code authority vote is limited to voters in the affected area; a code affecting a county may not be voted on by citizens of incorporated territory.
    • The statute authorizes building regulations, building permits, inspections, licensing rules, and permit, license, and inspection fees.
    “the county commission in all counties of the first and second classification [...] is for this purpose empowered [...] to adopt [...] regulations to control the construction”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemptions from county building permits or construction regulation.
  • Inspections — Building-construction inspections separate from zoning violation or septic inspections.
  • Certificate of occupancy — Certificate-of-occupancy requirements for county-regulated buildings.
  • Camping on your land — Temporary camping outside regulated mobile-home or travel-trailer parks.
  • Tiny homes — Tiny-home occupancy in unincorporated Clinton County.
3 more unanswered
  • Accessory dwellings
  • Well permit
  • 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 Clinton County, Missouri

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

Clinton County scores 56/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and workable self-sufficiency basics (39″/yr rainfall). Watch-outs: sparse surroundings — about 24,293 people within a 30-minute drive.

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

Clinton County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Clinton County Health Department (on-site wastewater; applications routed via Planning & Zoning). These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Clinton County, Missouri?

Land in Clinton County runs about $5,692 per acre, based on the latest county data.

What is the water situation in Clinton County?

Clinton County gets about 39" of rain a year, with severe drought in roughly 7.1% of years.

How remote is Clinton County?

A representative private-land location has about 24,293 people within a 30-minute drive and 2,990,224 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.

Off-grid gear

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

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How Clinton compares in Missouri

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