Lake County, FL: flood zone, zoning and property lines by address
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Towns in Lake County: Clermont, Four Corners, Leesburg.
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 Lake County has 94 FIRM panels, the newest effective December 2012; no coastal V zones are mapped in it.
The official panel and any Letter of Map Amendment are at FEMA's Map Service Center. An elevation certificate for a Lake 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 Lake lot shows the same lines the property appraiser draws. Lake County covers about 610,583 acres of land and 129,745 acres of water.
Mapped lines are approximate. The Lake County Property Appraiser keeps the parcel record; a licensed surveyor sets the true corners.
An example from the county's own records: parcel 28-22-26-0735-000-81400 in Clermont, a lot with one house, about 17,983 square feet as mapped, the house built in 2002. Open it to see every card ParcelSheet draws for a Lake lot.
Zoning
Lake County zones its unincorporated land, and Clermont, Leesburg each zone the land inside their limits. ParcelSheet shows the use the property appraiser lists for the lot and links Planning & Zoning 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 Lake lot can add one depends on its district; Planning & Zoning 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. Lake County is soil survey area FL607, Lake County Area, Florida, last updated August 2026, on Web Soil Survey.
A new or changed septic system in Lake County needs a permit from the Florida Department of Health in Lake County, which tests the soil on the lot itself.
Setbacks
Setbacks in Lake County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; Planning & Zoning gives them for the lot's district, and Clermont and Leesburg for land inside their limits.
Hazards that apply
- Sinkholes. The Florida Geological Survey lists 179 subsidence incident reports in Lake County (the reports). They are reports, not confirmed sinkholes; ParcelSheet does not rate a lot for sinkholes.
- Wind. The Florida Building Code sets the design wind speed for a house in Lake County; the building office (Building) applies it at permit.
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Lake lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Lake 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 Lake County has 94 panels, the newest effective December 2012. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Lake 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 Lake 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 Lake County?
Zoning in Lake County is set by the county for unincorporated land and by each city (such as Clermont, Leesburg) 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 Lake County?
Florida Statute 163.31771 lets counties and cities allow an accessory dwelling unit, and each sets its own rules. In Lake 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 Lake County?
Yes. A new or changed septic system in Lake County needs a permit from the Florida Department of Health in Lake County. ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area FL607 (Lake County Area, Florida).
Next to Lake County: Marion County, Orange County, Polk County, Seminole County, Sumter County, Volusia County.
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