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

An ordinary home in unincorporated Daviess County generally does not need a county building permit¹. Inside Gallatin, the city requires building permits for covered construction and alterations¹⁰. Gallatin also requires a City Superintendent permit for private sewage disposal where public sewer is unavailable; the Daviess County Health Department remains the listed county contract septic authority^4,5. Zoning approval, floodplain development permits and MoDOT driveway permits are separate from the county building-permit answer^2,11,12. We could not confirm county residential inspections, certificates of occupancy or an owner-builder exemption; ask the County Commission before relying on their absence.

For a home in unincorporated Daviess County, a county building permit is generally not required¹. Ask the township board about zoning approval; inside Gallatin, ask the city about building permits and zoning^2,10,13. Start county septic questions with the Daviess County Health Department, Missouri’s listed contract authority, and confirm who handles the particular address because some incorporated areas defer permitting to DHSS⁴. Gallatin’s City Superintendent issues the city’s private-sewage permit where public sewer is unavailable⁵. The Health Department is at 609A South Main Street, Gallatin, MO 64640-1447, and its phone number is 660-663-2414¹⁴. We could not confirm a dedicated county floodplain administrator; ask the County Commission who handles floodplain development permits.

Daviess County has no comprehensive county zoning ordinance². County zoning therefore sets no minimum dwelling or lot size, setbacks, lot coverage or building height in unincorporated Daviess County, and does not restrict accessory dwellings or RV, tiny-home and manufactured-home occupancy². Separate local rules still matter: cities and Lake Viking have their own regulations, and township boards are responsible for zoning regulations³. Gallatin has its own zoning districts and map; buildings and uses inside city limits must comply with the applicable district¹³. Gallatin’s private-sewage permit comes from the City Superintendent where public sewer is unavailable, while the Health Department is the listed county septic authority^4,5. We could not confirm which townships maintain written zoning ordinances; request the parcel’s rules from its township board.

Start with the Daviess County Health Department, Missouri’s listed contract septic authority, and confirm jurisdiction for the address before applying^4,6. Most septic installations and repairs require a construction permit, and local rules may be stricter than the state minimum⁶. The state baseline requires septic permits on residential property under 3 acres and for all nonresidential systems regardless of acreage; do not begin work until the authority issues a permit or confirms an exemption^6,15. Septic application fees are temporarily suspended⁶. With 0% of mapped soils rated free of severe conventional drain-field limitations, evaluate the site before fixing the house location⁷. DNR handles lagoons serving anything other than a single-family residence and treatment facilities with daily flows over 3,000 gallons, so those projects need a different jurisdiction check^6,16.

The absence of comprehensive county zoning means county zoning imposes no RV or tiny-home occupancy restriction in unincorporated Daviess County². Cities, Lake Viking and applicable township rules may still control a parcel; ask the relevant local authority about placement and occupancy before moving a dwelling onto the land³. We could not confirm local utility-connection requirements, so ask the serving utility and local zoning authority. Any dwelling needs lawful wastewater disposal: Missouri prohibits wastewater discharge onto the ground or into a road ditch, and most septic installations or repairs require a permit unless the permitting authority confirms an exemption^6,15.

1. Identify whether the parcel is unincorporated or falls under a city, Lake Viking or township zoning rule, then request that jurisdiction's standards³.

1. Call the Daviess County Health Department before fixing the house site; confirm the permitting authority and whether a septic permit or residential exemption applies before starting installation or repair^4,6.

1. Complete the soil and system planning because 0% of mapped soils are rated free of severe conventional drain-field limitations⁷.

1. Check the flood map and ask the County Commission who administers the local process if the site is in a floodplain; all floodplain development requires some type of permit¹¹.

1. Obtain a MoDOT driveway permit before work in state right-of-way; controlled-access changes face separate review and a $100 application fee^12,17.

1. Confirm that no parcel-specific approval remains, then proceed without a general county residential building permit in unincorporated Daviess County¹.

Start with wastewater feasibility: 0% of mapped Daviess County soils are rated free of severe conventional drain-field limitations, so make a site evaluation part of the purchase contingency⁷. Missouri does not require a septic inspection before a real-estate transaction, but local requirements may be stricter; ask the Daviess County Health Department whether a transfer inspection is required for the address^4,15. A buyer- or lender-requested inspection must use a licensed individual¹⁵. Landowners installing their own well or pump are exempt from installation permit requirements, but must follow the other Missouri Well Construction Rules^8,9. Confirm the parcel’s city, Lake Viking or township zoning rules, flood hazards and state-highway access before closing^3,11,12.