Bolthole Index

Lafayette County, Missouri

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

60Index Score / 100
#96 of 115 in Missouri

Unincorporated Lafayette County, Missouri requires a county building permit for dwellings and other structures that count as development, regardless of property size1. The county also has voter-adopted zoning for land outside city limits2. Septic permits come from county Planning & Economic Development on parcels of 25 acres or less and from the Health Department in the other cases3.

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

Yes.

Yes. Unincorporated Lafayette County requires building permits for dwellings and other buildings involving structural construction, foundations, utilities or occupancy when they constitute development under the Land Development Code, regardless of property size1. The published fees are $300 for a residential building permit, $400 for a commercial permit and $300 for an accessory building1. Planning staff review each proposed structure to decide whether a permit applies, so call before you build1. Construction without a permit can bring stop-work orders and fines5. Missouri's farm-structure protection only stops county fire-protection ordinances from requiring permits for qualifying farm buildings; it does not remove zoning, septic or floodplain requirements6.

Who is the Lafayette County building department, and how do you reach it?

Lafayette County Planning & Economic Development handles building permits, zoning compliance, septic permits and floodplain development permits for unincorporated Lafayette County.

Lafayette County Planning & Economic Development handles building permits, zoning compliance, septic permits and floodplain development permits for unincorporated Lafayette County5. Call 660-259-4439 or email planning@lafayettecountymo.gov; hours are Monday through Friday, 8:30 a.m. to 4:30 p.m5.. Permits are issued by appointment only, fees must be paid before an application is accepted as complete, and staff ask you not to submit payment until they confirm the fee1. Bring a site plan and project description5. The office is at 1001 Main Street, Lexington, MO 640672. The county's rules apply to unincorporated land; for a property inside a city, contact that city hall2. Emma sets its own zoning7, and Oak Grove, which lies mainly in Jackson County, issues its own building permits and zoning8,9.

Does Lafayette County have zoning?

Yes.

Yes. Lafayette County is a zoned county because voters adopted zoning regulations, and the county office handles planning and zoning only in unincorporated areas2. The county publishes a 2016 Land Development Code, a Future Land Use Map, a Tiers Map and a Draft Zoning Map, and directs owners to its GIS zoning layer for parcel-specific districts2,5. Current numeric district standards such as setbacks, minimum lot size and minimum dwelling size could not be confirmed, so ask Planning & Economic Development for the standards tied to your parcel2. Land divisions are regulated: the county lists a $500 farm split fee, a $50 waiver of plat and a minor subdivision fee of $500 plus $15 per lot2. Inside Emma, the city's own zoning chapter applies instead7.

How do septic permits work in Lafayette County?

Septic authority in Lafayette County is split.

Septic authority in Lafayette County is split. County Planning & Economic Development regulates private systems on unincorporated parcels of 25 acres or less3. The Health Department regulates private systems in towns without their own sewage codes and commercial or public buildings in unincorporated areas3. Missouri's Department of Natural Resources regulates public systems and large lagoons3. New systems and major modifications or repairs require permits and inspections3. County planning lists $375 for on-site septic including two inspections and $100 for each additional inspection1. Inside Emma, private sewage systems where no public sewer is available need a city permit with a $25 fee10. Only 13.4% of mapped soils lack severe drain-field limitations, so plan for a site evaluation and possibly an engineered system11.

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

We could not confirm a county rule allowing or prohibiting long-term RV living, temporary camping or tiny-home occupancy on unincorporated land.

We could not confirm a county rule allowing or prohibiting long-term RV living, temporary camping or tiny-home occupancy on unincorporated land. Lafayette County zoning applies outside city limits, so ask Planning & Economic Development whether the proposed dwelling type and occupancy are allowed in the parcel's district2. The county fee schedule lists a temporary accessory dwelling permit with a one-year term and a $300 fee, but that listing does not establish that an RV or tiny home qualifies1. Construction, fill or development in a floodplain requires a county permit, including accessory structures5.

How do you build a home in Lafayette County, step by step?

Call Planning & Economic Development at 660-259-4439 to confirm the parcel is unincorporated, identify its zoning district and schedule an appointment.

  1. Call Planning & Economic Development at 660-259-4439 to confirm the parcel is unincorporated, identify its zoning district and schedule an appointment1,5.
  1. Prepare a site plan and project description, and ask staff to screen the site for floodplain constraints5.
  1. Work out who issues the septic permit, by acreage, location and building type, then complete the permit and inspections3.
  1. Submit the building application once staff confirm which permit and fee apply1.
  1. Obtain a MoDOT permit if driveway work enters state right-of-way12.

What should you check before buying land in Lafayette County?

Confirm zoning, legal access, floodplain status and septic jurisdiction before your inspection period ends.

Confirm zoning, legal access, floodplain status and septic jurisdiction before your inspection period ends. Lafayette County requires a permit for any construction, fill or development in a floodplain in unincorporated areas, even for sheds and barns5. Building or replacing a driveway or culvert in or near flood-prone land likely needs a floodplain development permit13; the countywide driveway rule outside that context could not be confirmed, so ask the county and the road owner5. Only 13.4% of mapped soils lack severe drain-field limitations11. Typical farmland value is about $7,328 per acre and the median property-tax bill about $1,534 per year11. Unlike most counties around it in Missouri, Lafayette County requires a county building permit1.

Watch-outs

  • Applications are handled by appointment; bring a site plan and project description and contact staff before construction1,5.
  • The county may require consultant review with an escrow deposit, and processing can be suspended if escrow funds run short5.
  • We could not confirm the county's adopted building-code edition, inspection schedule or certificate-of-occupancy rule; ask Planning & Economic Development before finalizing plans5.
  • A parcel over 25 acres does not automatically go to the Health Department; septic authority also depends on location, building type and town sewage code3.

Sources

13 official pages, each quoted and re-checked · written October 13, 2026

  1. Applications, Permits, and Fees
  2. Planning & Economic Development
  3. Sewage System
  4. RSMo 701.055 — Property owners may install, modify or clean their own on-site sewage disposal system (2026 county census)
  5. lafayettecountymo.gov
  6. RSMo Section 64.003 — Farm buildings and farm structures (Missouri statewide rule)
  7. Emma: Chapter 405: Zoning Regulations - City of Emma, MO (Lafayette County)
  8. Oak Grove: Article II: International Building Code (Lafayette County)
  9. Oak Grove: official source (Lafayette County)
  10. Emma: Chapter 705: Sewer Regulations - City of Emma, MO (Lafayette County)
  11. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  12. Permits | Missouri Department of Transportation (Missouri statewide rule)
  13. Floodplain Management

Written October 13, 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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Compared with neighboring counties

Unlike 4 of its 6 neighbors, Lafayette County requires a building permit for a home.

RuleLafayette CountyRay CountyJohnson CountyCarroll CountyJackson CountySaline CountyPettis County
Building permitRequiredRequiredNot requiredLimitedRequiredNot requiredNot required
County zoningYesYesNoYesYesNoYes
Septic permitsCounty Planning & Economic DevelopmentCounty Health Dept. Env. HealthCounty Community Health ServicesCounty Health Dept.County Public Works On-Site Wastewater programDHSSCounty Health Center

County locator

Lafayette County in Missouri

60
County map
Lafayette County highlighted among the Missouri counties · colored by Index score

How Lafayette County scores

60 / 100 · #96 of 115 in Missouri · six factors, land price, tax, rain and climate

Seclusion45100% ev.
Self-Sufficiency55100% ev.
Admin Boringness4690% ev.
Durability58100% ev.
Property Autonomy47100% ev.
Carry Cost71100% 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 →

$252kTypical home
0.8%Property tax
$7,328Land / acre
40.9"Annual rain
8.9% of yrsSevere drought
14.9 / yr (+12.1)Mid-century 100°F days
19.4 daysMid-century dry spell
2.2" (+6.4%)Mid-century 1-day rain
1.7×Wildfire change factor
100%Forward climate coverage
$1,954Home insurance / yr
1.9% / yrInsurance growth
1.16%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
18,626People within 30 min
3,122,401People within 2 hr
31,183Radius comparison (15 mi)
52.8People / sq mi
0.6%Federal land
95.8%Land at 15% slope or less
13.4%Soils rated "not limited" for septic (strict USDA rating)
52,907 acWorkable land screen
14.8%Wooded land
42.5 tonsBiomass / forest ac
54.6°FAvg temp

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Cities and towns in Lafayette 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: Alma · Village of Aullville · Bates City · Town of Dover · Napoleon · Waverly · Wellington

Answers from the rulebook for Lafayette County

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

Lafayette County rules

  • Building permitRequired

    Structures constituting development under the Lafayette County Land Development Code, including residential dwellings and other buildings involving structural construction, foundations, utilities, or occupancy.

    • The county Planning & Economic Development Office reviews proposed structures to determine whether a building permit is required based on the nature and scope of construction.
    • Property owners are encouraged to contact the Planning Office before beginning construction.
    • The page states the requirement applies regardless of property size.

    residential building permit fee: 300 USD · commercial non-residential building permit fee: 400 USD · accessory building permit fee: 300 USD

    “Building permits are required for all structures that constitute “development” under the Land Development Code, including dwellings and other buildings involving structural construction, foundations, utilities, or occupancy, regardless of property size.”
    2 more reviewed findings on this topic
    • Required — Structures constituting development under the Lafayette County Land Development Code, including dwellings and other buildings involving structural construction, foundations, utilities, or occupancy.
      “Building permits are required for all structures that constitute “development” under the Land Development Code”
    • Required — Structures constituting development under the Land Development Code, including dwellings and other buildings involving structural construction, foundations, utilities, or occupancy, regardless of property size, in unincorporated Lafayette County.
      “Building permits are required for all structures that constitute “development””
  • County-wide zoningPresent (with conditions)

    Zoning and land-use regulation administered by Lafayette County in unincorporated areas.

    • The county FAQ states the county office has jurisdiction only in unincorporated Lafayette County; properties within city limits are handled by the local city hall.
    “Lafayette County is a zoned county because voters chose to adopt zoning regulations. Our office only handles planning and zoning in unincorporated areas of the county.”
    One more reviewed finding on this topic
    • Present (with conditions) — County zoning and land-use regulation in unincorporated Lafayette County.
      “Lafayette County is a zoned county because voters chose to adopt zoning regulations.”
  • Local zoningPresent (with conditions)

    County zoning and land-use regulations administered by Lafayette County Planning & Economic Development for property outside incorporated city limits.

    • The county office states that it handles planning and zoning only in unincorporated areas of Lafayette County.
    • Property within city limits is directed to the applicable local city hall; this source does not establish the zoning status of every incorporated city.
    • County zoning includes land-use, subdivision, and use regulations administered through the Land Use Development Code.
    “Lafayette County is a zoned county because voters chose to adopt zoning regulations. Our role is to carry out that decision fairly, transparently, and with your input. [...] If your property is within city limits, please contact your local city hall. Our office only handles planning and zoning in unincorporated areas of the county.”
  • Zoning districtsPartial

    Zoning-district information for parcels in unincorporated Lafayette County.

    • The county directs users to its GIS zoning layer and the Land Development Code for parcel-specific zoning and permitted uses.
    • The linked 2016 Land Development Code and current numeric district standards were not fully accessible during this research.
    “use the layers list and select "zoning."”
    One more reviewed finding on this topic
    • Published (with conditions) — County zoning districts and zoning-map materials for unincorporated Lafayette County.
      “Land Development Code 2016 pdf [...] Future Land Use Map pdf (adopted April 2013) Tiers Map pdf (adopted April 2013) Draft Zoning Map 2013 pdf”
  • Minimum dwelling sizeDistrict specific (with conditions)

    Residential buildings in unincorporated Lafayette County zoning districts

    • Exclusive of basements, open or screened porches and garages.
    • Rural Estates and Rural Residential floor areas not captured in this pass.

    AG district minimum floor area: >= 900 sq ft · RA district minimum floor area: >= 1200 sq ft

    “the minimum floor area of a residential building in the ra district shall be 1,200 square feet (exclusive of basements, open or screened porches and garages).”
  • Minimum lot sizeDistrict specific (with conditions)

    Lots in unincorporated Lafayette County zoning districts

    • Exceptions or variances to the 20-acre AG minimum possible via Board of Zoning Appeals.
    • Business and industrial districts have no minimum.

    AG minimum lot size: >= 20 acres · RA minimum lot size: >= 5 acres · RE minimum lot size: >= 1.5 acres · RR minimum lot size: >= 10000 sq ft

    “agricultural (ag) 20 ac. residential agriculture (ra) minimum setbacks (ft) front rear side building height (ft) 4:1 100' 50 50 25/50c 35d 5 ac.”
  • SetbacksDistrict specific (with conditions)

    Lots in unincorporated Lafayette County zoning districts

    • Table columns are garbled in extraction; AG and RA rows are ambiguous.
    • Footnote c: the larger side figure applies if adjacent to a side street.
    • Variances available through Board of Zoning Appeals.

    RE setbacks front/rear/side: 50/50/25 (50 if side street) ft · RR setbacks front/rear/side: 50/25/15 (25 if side street) ft

    “rural estates (re) 1.5 ac. 3:1 100' 50 50 25/50c 35e rural residential (rr) 10,000 sf 3:1 75' 50 25 15/25c 35e”
  • Accessory dwellingsLimited

    Temporary accessory dwellings requiring county land-use approval.

    • The county fee schedule identifies a Temporary Accessory Dwelling Permit.
    • The listed permit term is one year.
    • Other applicable development and building-permit requirements may apply.

    temporary accessory dwelling permit term: 1 year · temporary accessory dwelling permit fee: 300 USD

    “Temporary Accessory Dwelling Permit (1 year) | $300”
  • Who permits septicMixed (with conditions)

    Private and public sewage systems in Lafayette County.

    • Private sewage systems in unincorporated areas on 25 acres or less are regulated by Lafayette County Planning and Economic Development.
    • Private sewage systems in towns without their own sewage codes and commercial or public buildings in unincorporated areas are regulated by the Lafayette County Health Department.
    • Public sewage systems and large lagoons are regulated by the Missouri Department of Natural Resources.

    parcel area threshold: <= 25 acres (Private sewage systems in unincorporated areas)

    “Private sewage systems in unincorporated areas on 25 acres or less are regulated by Lafayette County Planning and Economic Development.”
    3 more reviewed findings on this topic
    • County (with conditions) — Private sewage systems in unincorporated Lafayette County on parcels of 25 acres or less.
      “Private sewage systems in unincorporated areas on 25 acres or less are regulated by Lafayette County Planning and Economic Development.”
    • Local (with conditions) — Private sewage systems in Lafayette County towns without their own sewage codes, and commercial or public buildings in unincorporated areas.
      “Private sewage systems in towns without their own sewage codes, commercial or public buildings in unincorporated areas are regulated by the Lafayette County Health Department.”
    • Mixed (with conditions) — Private and public sewage systems in Lafayette County, with authority varying by acreage, location, building type, town code, and system scale.
      “regulated by Lafayette County Planning and Economic Development”
  • Septic permitRequired

    Installation of new onsite sewage systems and major modifications or repairs in Lafayette County.

    • The appropriate agency depends on system type, location, parcel area, town sewage code, and whether the building is commercial or public.

    on-site septic application fee: 375 USD (Includes two inspections)

    “Installation of new systems or major modifications or repairs requires permits and inspections. For complaints, questions, or permit applications, contact the appropriate agency above.”
    2 more reviewed findings on this topic
    • Required — Installation of new private sewage systems and major modifications or repairs under Lafayette County authority.
      “Installation of new systems or major modifications or repairs requires permits and inspections. For complaints, questions, or permit applications, contact the appropriate agency above.”
    • Required — Installation of new onsite sewage systems and major modifications or repairs in Lafayette County.
      “Installation of new systems or major modifications or repairs requires permits and inspections. For complaints, questions, or permit applications, contact the appropriate agency above.”
  • Septic inspectionRequired

    New septic systems and major septic modifications or repairs.

    • Inspection administration depends on the appropriate agency identified for the system.

    included inspections: 2 inspections (On-site septic application fee includes two inspections) · additional inspection fee: per 100 USD (Inspection)

    “Additional Inspection (per inspection) | $100”
    2 more reviewed findings on this topic
    • Required — New private sewage systems and major modifications or repairs under Lafayette County authority.
      “Installation of new systems or major modifications or repairs requires permits and inspections.”
    • Required — Installation of new sewage systems and major modifications or repairs in Lafayette County.
      “Installation of new systems or major modifications or repairs requires permits and inspections. For complaints, questions, or permit applications, contact the appropriate agency above.”
  • Subdividing landRegulated (with conditions)

    Land divisions and subdivisions administered under the Lafayette County Land Development Code.

    • The county lists boundary-line adjustments, farm splits, waivers of plat, minor subdivisions, conservation subdivisions, preliminary and final plats, and plat amendments as application categories.
    • Application fees vary by subdivision type and may include $15 per lot.

    minor subdivision fee: $500 + $15 per lot USD · preliminary plat fee: $500 + $15 per lot USD · final plat fee: $500 + $15 per lot USD

    “Minor Subdivision | $500 + $15 per lot [...] Preliminary Plat | $500 + $15 per lot Final Plat | $500 + $15 per lot”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Land divisions, farm splits, minor subdivisions, plats, and related development requests in unincorporated Lafayette County.
      “Administering the Land Use Development Code – zoning, subdivision, and use regulations”
  • Driveway accessLimited

    Building or replacing a driveway or culvert in or near a mapped floodplain or other flood-prone land.

    • The county page says a permit is likely needed for this activity in the stated floodplain context.
    • Applicants must contact the county, submit a permit application with a site plan and description of work, follow floodplain construction requirements, and obtain approval before work begins.
    “Building or replacing a driveway or culvert”
    One more reviewed finding on this topic
    • Limited — Driveways or culverts associated with projects in or near mapped floodplain or flood-prone land.
      “You will likely need a floodplain development permit if your project includes: [...] Building or replacing a driveway or culvert”
  • Building in a floodplainLimited

    Development in or near mapped floodplains, creeks, streams, and other flood-prone land in Lafayette County.

    • Projects listed by the county include new homes or structures, mobile or manufactured homes, grading/filling/excavation, accessory structures, driveways or culverts, and construction in or near flood-prone land.
    • Applicants must contact the county, submit a permit application with a site plan and work description, follow construction requirements that may include elevation data or anchoring, and obtain approval before work begins.
    “If your property is located in or near a floodplain, there are specific rules you must follow before building, altering, or developing land. [...] Get approval before work begins – Do not start construction in a floodplain without a permit.”
    2 more reviewed findings on this topic
    • Required — Construction, fill, or development in a floodplain, including accessory structures, in unincorporated Lafayette County.
      “any construction, fill, or development in a floodplain requires a permit”
    • Required — Construction, fill, or development in a floodplain in unincorporated Lafayette County, including accessory structures.
      “We only have jurisdiction in unincorporated Lafayette County. [...] Yes—any construction, fill, or development in a floodplain requires a permit, even for accessory structures.”
  • Permit feesPublished (with conditions)

    Lafayette County Planning & Economic Development applications and permits.

    • Required fees must be paid before an application will be accepted as complete.
    • Fees are non-refundable once staff review has commenced unless otherwise authorized by the County Commission.
    • All permits are issued by appointment only.
    • Credit/debit card payments may have a processing fee.
    • Consultant review may require an escrow deposit and payment of consultant costs.

    residential building permit: 300 USD · commercial building permit: 400 USD · on-site septic including two inspections: 375 USD · additional septic inspection: per 100 USD

    “Building Permit – Residential | $300 [...] On-Site Septic (includes two inspections) | $375 Additional Inspection (per inspection) | $100”
  • Permit processPublished (with conditions)

    County planning, zoning, building, septic, floodplain, and development-permit applications.

    • Applicants should contact the office before construction.
    • Applications are handled by appointment only.
    • A site plan and project description are required to begin the process.
    • The county may require consultant review and an escrow deposit.
    • Processing may be suspended if escrow funds are insufficient.
    “By appointment only. [...] You’ll need a site plan”
    One more reviewed finding on this topic
    • Published (with conditions) — Lafayette County Planning & Economic Development permit and application process.
      “Required fees must be paid before an application will be accepted as complete. Do not submit payment until staff confirms the applicable fee and provides payment instructions. [...] All permits are issued by appointment only.”

Missouri rules that apply here

  • 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”
  • 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”
    2 more reviewed findings on this topic
  • 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.”
  • 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”
  • 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.”
  • Off-grid sanitationLimited

    Off-grid domestic wastewater treatment using onsite wastewater treatment systems where central sewer service is unavailable.

    • Onsite systems treat and dispose of domestic sewage on the property where generated.
    • A construction permit is generally required, including for residential property less than three acres, subject to county-specific exceptions.
    • Wastewater may not be discharged into a road ditch or onto the ground.
    • Local permitting authorities may impose additional requirements.

    residential lot threshold: < 3 acres (The exemption does not apply in some counties.)

    “Onsite wastewater treatment systems are sometimes referred to as "septic systems." These systems treat and dispose of domestic sewage on the property where it is generated.”
    One more reviewed finding on this topic
    • Allowed (with conditions) — Use of onsite wastewater treatment systems as off-grid sanitation where central sewer service is unavailable in Missouri.
      “In Missouri, where central sewer service is not available, homeowners and small business owners use various types of onsite wastewater treatment systems (OWTS).”
  • 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”
    2 more reviewed findings on this topic
    • 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.”
    • 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.”
  • 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.”
  • Agricultural exemptionAvailable (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.

    • The exemption does not apply within incorporated portions of counties.
    • The exemption applies to raising crops, livestock, orchards, or forestry and to specified rice-farming or flood-irrigation impoundments.
    • For farm buildings or farm structures, the area must not be within the area shown on the flood hazard area map.
    • The statute preserves the validity of county ordinances or orders adopted before March 4, 1991.
    • Other laws and local requirements may still apply.

    rice-farming or flood-irrigation berm height: <= 18 inches (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.”
    4 more reviewed findings on this topic
    • 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.”
    • 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 [...]”
    • 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 [...]”
    • 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.”
  • 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.”
    2 more reviewed findings on this topic
  • 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”
    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”
    • 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”

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 structures in unincorporated Lafayette County.
  • Building height — Building-height requirements in unincorporated Lafayette County.
  • Living in an RV — Long-term or residential RV occupancy on private land.
  • Tiny homes — Tiny-home occupancy in unincorporated Lafayette County.
  • Manufactured homes — Manufactured-home occupancy in unincorporated Lafayette County.
1 more unanswered
  • 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 Lafayette County, Missouri

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

Lafayette County scores 60/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and mixed durability signals.

How much does land cost in Lafayette County, Missouri?

Land in Lafayette County runs about $7,328 per acre, based on the latest county data.

What is the water situation in Lafayette County?

Lafayette County gets about 40.9" of rain a year, with severe drought in roughly 8.9% of years.

How remote is Lafayette County?

A representative private-land location has about 18,626 people within a 30-minute drive and 3,122,401 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.

How Lafayette compares in Missouri

Compare side-by-side →See all 115 Missouri counties ranked →