Building permits, zoning and septic rules in Jefferson County, Florida

Yes. Jefferson County requires a building permit for residential and commercial construction administered by the county, although requirements may differ inside incorporated municipalities or where city services apply¹. Applicants first submit a site plan and obtain a Development Permit from Planning, then apply to the Building Department⁸. Jefferson County reviews permit plans and construction for compliance with the current Florida Building Code⁸. The code edition in effect on the date you apply governs the permitted work for the life of the permit¹⁰. Only complete application packets are reviewed, applications are not accepted by email, and commercial reviews may take up to 30 days per department, or 60 days total; revisions restart the 30-day clock⁸. A qualifying owner may act as contractor but must directly supervise onsite work not done by licensed contractors, personally sign the permit application, and complete the required disclosure⁴. For a one-family or two-family residence, the home must be for the owner's occupancy or use and not offered for sale or lease; doing so within 1 year creates a statutory presumption that it was built for that purpose⁴.

Jefferson County's Building Department is at 445 W. Palmer Mill Road, Monticello, FL 32344, phone (850) 342-0223¹. The Planning Department, which issues your Development Permit first, shares that same address and phone number². Permit packets may require code-compliant plans, energy and wind documentation, a recorded deed, the approved site plan and Development Permit, and septic approval when applicable⁸. Payment may be made online, by cash, or by check payable to Jefferson Co. B.O.C.C.; inspections are not scheduled for the same day or on Fridays⁸. A new or altered connection to a county-maintained road needs a separate Road Department permit, with a $53 fee and at least 24 hours' inspection notice^11,12.

Yes, Jefferson County has zoning, administered through its Land Development Code (Chapter 50) and Planning Department site-plan review, and no development is approved unless it conforms to the county's comprehensive plan². The county's Land Development Regulations apply to all development, including subdivisions, buildings of any type, driveways and power poles, and incorporated municipalities may run separate rules². In Agriculture 5 and Agriculture 20 land, pens, coops, kennels and similar livestock structures generally must sit 500 feet from a dwelling on another lot and 100 feet from the property boundary, with 100 and 50 feet for small pet or family-food outbuildings¹³. Dividing land is regulated too: all subdivisions require Land Development Code approval, and recording a deed for unapproved subdivided property may prevent a future owner from obtaining a building permit². An "exempt" division of a large parcel is allowed only if the smallest resulting parcel is at least 100 acres in Agriculture 20 or at least 50 acres in every other land-use category, and that is not a general minimum lot size¹⁴. The county's adopted plan sets a 65% maximum impervious lot coverage for neighborhood commercial development in the Agriculture 5, Agriculture 3, and Residential 1 categories; that figure is not a general residential lot-coverage limit¹⁵. We could not confirm countywide numeric standards for minimum lot size, minimum dwelling size, setbacks, or ordinary residential lot coverage, so ask Planning for the standards tied to the parcel's jurisdiction and land-use category.

Florida DEP directly administers onsite sewage permitting and inspections in Jefferson County; the transfer took effect January 2, 2025⁵. A construction-permit application requires DEP4015 application and site-plan pages, the building floor plan, and a site evaluation covering soil, topography, and other property conditions³. FDEP may perform the evaluation, or a qualified private evaluator may do it before the application is submitted³. Applications can go through the OSTDS portal or by mail, although the portal enters the request into the database immediately³. Construction then receives a department or private-provider inspection, and final installation approval is not valid without FDEP's signature⁶. Only 12.3% of Jefferson County soils are free of severe limits for a conventional drain field, making the required site evaluation especially important before purchase⁹. Ask FDEP for current fees because the available county health-department fee sheet predates the transfer^5,16.

No official Jefferson County rule directly answers whether you can live long-term in an RV or tiny home on your own land; this hasn't been confirmed either way. What the county does regulate is temporary event camping: any one location is limited to six permitted temporary-use events a year, each capped at two days, unless you get a special exception allowing a single event of up to 14 consecutive days, and a complete application is due at least 20 days before the event¹⁷. That rule governs events, not everyday residential living, so it doesn't resolve the question for someone who wants to live on their land full time. Statewide, a recreational vehicle park or recreational camp that rents to transient guests needs its own annually renewed permit from the Florida Department of Health, but that rule governs commercial parks, not what you can do on your own private tract¹⁸. A manufactured home is different: Florida requires an onsite inspection and a certificate of occupancy before you can live in one, on top of whatever setback, zoning, and subdivision rules Jefferson County applies to the site¹⁹. Call the Planning Department before placing an RV or tiny home for anything beyond a short stay.

1. Ask the Planning Department to confirm the parcel's jurisdiction, land-use category, lot standards, and whether a proposed use is allowed².
2. Submit the site plan and obtain the Development Permit before applying to Building⁸.
3. Obtain the required septic site evaluation, then submit the application, site plan, and building floor plan to FDEP³.
4. Submit a complete building-permit packet; Jefferson County does not accept permit applications by email⁸.
5. If the parcel is in western Jefferson County, have a Florida-licensed well contractor determine whether a Northwest Florida Water Management District well permit is required before well work begins⁷.
6. Obtain a Road & Driveway Connection Permit for a covered connection to a county-maintained road, budgeting the $53 fee and at least 24 hours' inspection notice^11,12.
7. Complete the required septic construction inspection and obtain FDEP's signed final installation approval⁶.

Check the soil first: only 12.3% of Jefferson County's soils are free of severe limits for a conventional septic drain field⁹. Confirm which water-management district covers the tract; the Northwest Florida Water Management District's well-permit rule is established only for western Jefferson County, not the county's eastern portion⁷. Jefferson County is 82.8% wooded and receives 54.9 inches of rain a year, so include clearing and drainage in site planning⁹. A typical home insurance premium is about $2,862 a year⁹. Ask the Building Department about parcel-specific flood requirements because we could not confirm whether the proposed floodplain amendment setting minimum elevations was enacted. The effective property tax rate is about 0.7%, and the median annual property-tax bill is about $1,348⁹.