Bolthole Index

Franklin County, Missouri

Village of Oak Grove Village, Missouri: building permits, zoning and septic

The Village of Oak Grove Village, Missouri has its own zoning code, but we could not confirm a general building-permit requirement; ask the Village Clerk before starting construction.1 Village sewer connection requirements can limit septic options, and sewage-system construction must comply with the Franklin County Building Department and Missouri Department of Natural Resources.23

At a glance

Building permits
General requirement unconfirmed; ask the Village Clerk1
Zoning
Village zoning code; zoning map held by the Village Clerk1
Public sewer
Connection required for qualifying properties within 300 feet of the public sewer2
Septic permits
Required before installing or repairing most systems; confirm agency and sewer eligibility42
RV and tiny-home living
Private-land occupancy rules unconfirmed; ask the Village Clerk1
Subdividing land
Village approval required before selling lots or recording the plat5

Who to call

Zoning

Village Clerk — Village of Oak Grove Village

Village zoning map inquiries; ask the Clerk to identify the building and zoning application contact.

Septic permits

Franklin County Building Department

County on-site sewage applications; confirm the requirements for a village address and proposed system.

636-583-6384

400 E Locust Room 006 Union MO 63084

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

Off-grid gear

Going off-grid in Village of Oak Grove Village means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in the Village of Oak Grove Village, MO?

We could not confirm the Village of Oak Grove Village’s general building-permit requirement, inspection sequence, certificate-of-occupancy requirement or owner-builder exemption; ask the Village Clerk to identify the official who reviews your proposed construction.1 Village construction must comply with Missouri earthquake and seismic requirements, and village sewage-system construction must comply with the Franklin County Building Department and Missouri DNR.3 For land outside village limits, consult the Franklin County guide: the county requires building permits for new construction in unincorporated Franklin County, subject to exemptions.6

Who handles zoning in the Village of Oak Grove Village?

The Village of Oak Grove Village has a village zoning code, and the official zoning map is held in the Village Clerk’s office.1 Ask the Village Clerk for the parcel’s zoning designation and the correct zoning-application contact before committing to a home design.1 We could not confirm district-specific minimum lot size, setbacks, dwelling size or height limits for a proposed village home; request the applicable district provisions from the Village Clerk.1 The available village approval process identifies zoning-permit sections and a separate subdivision review process.7

How do sewer and septic permits work in the Village of Oak Grove Village?

Qualifying Village of Oak Grove Village properties abutting a street, alley or right-of-way containing a village public sewer must connect at the owner’s expense when the sewer is within 300 feet of the property line, within 90 days after the works are in operation.2 Establish sewer availability before designing a septic system: the village also restricts private sewage-disposal facilities except as provided in its sewer chapter.2 Most onsite wastewater installations and repairs require a construction permit, with authority depending on the system type.48 Ask the Franklin County Building Department about a village-address sewer application; village sewage construction must comply with that department and Missouri DNR.93

Can you live in an RV or tiny home in the Village of Oak Grove Village?

We could not confirm whether the Village of Oak Grove Village permits private-land RV occupancy, temporary camping, tiny-home occupancy or accessory dwellings; take the proposed use and parcel address to the Village Clerk for a zoning answer.1 We also could not confirm the village’s detailed manufactured-home occupancy requirements or a minimum dwelling size; ask for the applicable district’s use and dimensional provisions.1 A proposed alternative dwelling still needs a wastewater plan: village public-sewer connection requirements apply to qualifying properties, and most septic installations or repairs require a construction permit.24

What approvals come first when building in the Village of Oak Grove Village?

Start with the Village Clerk’s zoning map and request confirmation that the proposed residential use and layout meet the parcel’s district requirements.1 Next, ask the village to confirm the building-permit application, inspections and occupancy approvals, which we could not confirm.1 Establish whether the village sewer-connection requirement applies before pursuing onsite wastewater approval.2 Obtain the required septic construction permit, or confirmation of an applicable exemption, before installation or repair begins.10 If dividing land, submit preliminary plans to the Planning Commission and then the Board of Trustees; village approval is required before lots are sold or a plat is recorded.5

What should you check before buying in the Village of Oak Grove Village?

For a parcel needing septic, Franklin County’s soil data show only 2.2% of soils rated “not limited” for a conventional drain field; that countywide rating calls for a site evaluation and may mean an engineered system, rather than making septic impossible.11 Missouri requires a permit for all floodplain development, with an engineering No-Rise Certificate required for proposed regulatory-floodway development; ask the village to identify the community floodplain contact for the parcel.12 Missouri licenses or permits well contractors and requires contractor prenotification; a separate village homeowner well-permit requirement remains unconfirmed.13 Ask the Village Clerk about street access and water-service requirements before finalizing the site plan.1

Watch-outs

  • We could not confirm village building-permit fees, owner-builder exemptions or RV occupancy rules; obtain the applicable requirements from the Village Clerk before starting work or moving onto the parcel.1
  • The statewide DHSS septic application-fee suspension does not establish the charge for a Franklin County application; local authorities may use different processes.14
  • Village subdivision review carries a $50 preliminary-plan filing fee, and lots cannot be sold or the plat recorded before approval.5

Sources

  1. Village Clerk — Village of Oak Grove Village (ecode360.com)
  2. Chapter 710 Public and Private Sewers - Oak Grove Village, MO (Village of Oak Grove Village), quoted and re-checked
  3. Chapter 500 Building Regulations - Oak Grove Village, MO (Village of Oak Grove Village), quoted and re-checked
  4. On-site Septic Systems and Subdivisions (Village of Oak Grove Village), quoted and re-checked
  5. Chapter 410 Land Subdivision Regulations - Oak Grove Village, MO (Village of Oak Grove Village), quoted and re-checked
  6. Building | Franklin County, MO, quoted and re-checked
  7. Chapter 405 Zoning Regulations - Oak Grove Village, MO (Village of Oak Grove Village), quoted and re-checked
  8. On-site Septic Systems and Subdivisions (Village of Oak Grove Village), quoted and re-checked
  9. Franklin County Building Department (franklinmo.gov)
  10. OWTS Construction Permit Process (Missouri statewide rule), quoted and re-checked
  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. Floodplain Forms (Missouri statewide rule), quoted and re-checked
  13. Permits Needed for Well Driller Businesses, quoted and re-checked
  14. OWTS Construction Permit Process (Missouri statewide rule), quoted and re-checked

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.

Answers from the rulebook for Village of Oak Grove Village

Village of Oak Grove Village’s own rules

  • Building code adoptedPartial

    Construction inside Oak Grove Village village.

    • Village code expressly adopts Missouri earthquake and seismic requirements for all construction.
    • For sewage-system construction, the Village code requires compliance with the Franklin County Building Department and Missouri Department of Natural Resources.
    “All construction in the Village shall comply with the requirements of Sections 319.200 through 319.207, RSMo., and any amendments thereto, relating to earthquakes and seismic construction requirements.”
  • Mandatory utility hookupSewer (with conditions)

    Houses, buildings, and properties used for human employment, recreation, or other purposes inside Oak Grove Village village that abut a street, alley, or right-of-way containing or later receiving a Village public sanitary or combined sewer.

    • Connection is required at the owner's expense.
    • Connection must occur within ninety days after the sewer works are in operation.
    • The public sewer must be within three hundred feet of the property line.
    • The Village sewer code separately states that constructing or maintaining a privy, privy vault, septic tank, cesspool, or other sewage-disposal facility is unlawful except as provided later in the chapter.
    • No affirmative Village public-water connection rule was located.

    public sewer distance from property line: <= 300 feet (The rule applies when the public sewer is within 300 feet of the property line.) · connection deadline: 90 days (After works are in operation.)

    “The owner of all houses, buildings, or properties used for human employment, recreation, or other purposes situated within the Village of Oak Grove and abutting on any street, alley, or right-of-way in which there is now located or may in the future be located a public sanitary or combined sewer of the Village of Oak Grove is hereby required at his/her expense to install suitable toilet facilities therein and to connect such facilities directly with the proper public sewer in accordance with the provisions of this Chapter within ninety (90) days after works in operation, provided that said public sewer is within three hundred (300) feet [ninety-one and one-half (91.5) meters] of the property line.”
  • Subdividing landRegulated (with conditions)

    Subdivision and platting of land inside Oak Grove Village village.

    • Preliminary plans go first to the Planning Commission and then to the Board of Trustees.
    • A $50 preliminary-plan filing fee is required.
    • No lots may be sold and no plat recorded until approval.
    • Minimum improvements, bonds, or assessments may be required.

    preliminary-plan filing fee: 50 USD (To cover costs of review before improvement plans or final plat.)

    “Jurisdiction. It shall be unlawful for any person being the owner, agent or person having control of any land within the Village of Oak Grove, Missouri, to subdivide or lay out such land in lots unless by a plat in accordance with the regulations contained herein. No lots shall be sold nor any plat recorded until such plat has been approved as herein provided.”
  • Permit processPartial

    Zoning and subdivision approvals inside Oak Grove Village village.

    • The code index identifies zoning-permit application and permit-required sections.
    • Subdivision applications require preliminary plans, Planning Commission review, Board of Trustees review, and a final plat.
    “Procedure. The subdivider shall submit preliminary plans in accordance with the specifications of Section 410.050 hereof. A preliminary plan shall first be submitted to the Planning Commission for approval. After the preliminary plans are approved by the Planning Commission in accordance with this Chapter, such preliminary plans shall be submitted to the Board of Trustees for its approval or disapproval.”

Rules another office applies inside Village of Oak Grove Village

Village of Oak Grove Village does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicMixed (with conditions)

    Domestic wastewater and septic systems serving property inside Oak Grove Village village.

    • Missouri DNR regulates specified systems including developments meeting criteria, direct-discharge systems, non-individual lagoons, systems over 3,000 gallons per day, and industrial process waste.
    • DHSS or a local agency, typically the county health department, regulates individual residential subsurface-discharge septic systems and certain systems at or below 3,000 gallons per day.
    “In Missouri, different state and local agencies are responsible for regulating wastewater treatment systems.”
  • Septic permitRequired

    Most onsite wastewater treatment systems installed or repaired inside Oak Grove Village village.

    • The DNR page links the DHSS OWTS Construction Permit Application Process as required before installing or repairing most OWTS.
    • Authority may be DHSS or a local agency depending on system type.
    “OWTS Construction Permit Application Process - DHSS - DHSS - Required before installing or repairing most OWTS”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Oak Grove Village or Franklin County directly.

  • Building permit — Building construction inside Oak Grove Village village.
  • Owner-builder exemption — Owner-builders constructing inside Oak Grove Village village.
  • Inspections — Building construction inside Oak Grove Village village.
  • Certificate of occupancy — Occupancy of buildings inside Oak Grove Village village.
  • Minimum dwelling size — Dwellings inside Oak Grove Village village; district-specific dimensional section reviewed but no minimum dwelling-size figure was verified.
14 more unanswered
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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.

Unanswered questions are usually a sign that Village of Oak Grove Village publishes no rule on the point, not that none exists. Franklin County’s page lists the county offices to call.

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