Walton County, FL: flood zone, zoning and property lines by address
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Towns in Walton County: Miramar Beach, DeFuniak Springs, Freeport.
Flood zone by address
ParcelSheet reads FEMA's National Flood Hazard Layer at the lot: the zone, whether it is a high risk area where lenders ask for flood insurance, and the base flood elevation where FEMA lists one. FEMA's countywide study for Walton County has 158 FIRM panels, the newest effective December 2020; coastal V zones, where waves add to the flood, are mapped along its shore.
The official panel and any Letter of Map Amendment are at FEMA's Map Service Center. An elevation certificate for a Walton house comes from a licensed surveyor and is often on file with the county or city building office (Building).
Property lines
The parcel outline, parcel number and mapped size come from the Florida statewide cadastral (county property appraiser parcels with the Department of Revenue tax roll), so a Walton lot shows the same lines the property appraiser draws. Walton County covers about 664,560 acres of land and 237,487 acres of water.
Mapped lines are approximate. The Walton County Property Appraiser keeps the parcel record; a licensed surveyor sets the true corners.
An example from the county's own records: parcel 343N191950000A0100 in Defuniak Springs, a lot with one house, about 22,476 square feet as mapped, the house built in 1930. Open it to see every card ParcelSheet draws for a Walton lot.
Zoning
Walton County zones its unincorporated land, and DeFuniak Springs, Freeport each zone the land inside their limits. ParcelSheet shows the use the property appraiser lists for the lot and links Planning and Development for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Florida Statute 163.31771 lets local governments allow an accessory dwelling unit on a lot with a house. Whether a Walton lot can add one depends on its district; Planning and Development has the rule. ParcelSheet shows the mapped lot size and the ground's slope, the first two things the question turns on.
Septic and soil
ParcelSheet reads the USDA soil survey at the lot: the soil's name, its septic absorption rating and whether it is prime farmland. Walton County is soil survey area FL131, Walton County, Florida, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Walton County needs a permit from the Florida Department of Health in Walton County, which tests the soil on the lot itself.
Setbacks
Setbacks in Walton County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; Planning and Development gives them for the lot's district, and DeFuniak Springs and Freeport for land inside their limits. On the Walton shore, building seaward of the state's Coastal Construction Control Line needs a state permit.
Hazards that apply
- Sinkholes. The Florida Geological Survey lists 5 subsidence incident reports in Walton County (the reports). They are reports, not confirmed sinkholes; ParcelSheet does not rate a lot for sinkholes.
- Storm surge. Walton County has coastal V zones on its FEMA map, so storm surge reaches its shore. The county's evacuation zones are on its emergency management site; ParcelSheet shows the FEMA zone and the 3 ft sea level rise map at the lot.
- Wind. The Florida Building Code sets the design wind speed for a house in Walton County; the building office (Building) applies it at permit.
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Walton lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Walton County?
Type the address in the box above and ParcelSheet reads FEMA's flood zone at the lot's center. FEMA's countywide flood map for Walton County has 158 panels, the newest effective December 2020. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Walton County?
Open the Florida map, type the address, and the parcel outline from the county property appraiser shows on the map with its parcel number and mapped size. The Walton County property appraiser keeps the official record. Mapped lines are approximate; only a licensed surveyor sets the true corners.
What is my property zoned in Walton County?
Zoning in Walton County is set by the county for unincorporated land and by each city (such as DeFuniak Springs, Freeport) inside its own limits. ParcelSheet shows the use code the property appraiser lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Walton County?
Florida Statute 163.31771 lets counties and cities allow an accessory dwelling unit, and each sets its own rules. In Walton County ask the zoning office for the lot's district first; ParcelSheet shows the lot size as mapped so you can see the room you have.
Do I need a septic permit in Walton County?
Yes. A new or changed septic system in Walton County needs a permit from the Florida Department of Health in Walton County. ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area FL131 (Walton County, Florida).
Next to Walton County: Bay County, Holmes County, Okaloosa County, Washington County.
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