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

Unincorporated Hernando County requires a building permit for most construction work, including a new single-family residence; some improvements and maintenance may be exempt^1,2. The Florida Building Code, 8th Edition (2023), took effect December 31, 2023⁷. A qualifying Hernando County owner-builder must appear personally and sign the application, build for the owner's use rather than sale or lease, and provide direct onsite supervision; a power of attorney is not accepted². The single-family application requires an Owner/Builder Disclosure Statement, and the owner remains responsible for inspections, corrections and reinspections². The county supplies the inspection list when the building permit is issued, and required inspections must occur before proceeding with work². Residential occupancy or use must wait for a Certificate of Occupancy or Certificate of Completion from the Building Division². Work must begin within 180 days, and a building permit becomes void after 180 days of suspension or abandonment; the permit is valid for two years unless extended or re-permitted².

Hernando County's Building Division is the first stop for building permits, plan review and inspections⁸. Reach the division at (352) 754-4050, email bldg@hernandocounty.us, or visit 789 Providence Boulevard, Brooksville, FL 34601⁸. Hernando County publishes building and impact-fee schedules, and projects using private-provider services qualify for reduced building-permit fees^9,10. For residential projects, private-provider review and inspections qualify for a 45% building-permit fee reduction, while inspections alone qualify for 35%¹⁰. Ask the Building Division for the current project total: the fee-evaluation document lists both existing and recommended amounts without establishing which is effective¹¹. Applications may be filed through the online portal by creating an account, choosing a building-permit type, completing the application and uploading the required documents¹². A single-family application also requires plans, site and access documents, plus septic or utility documentation when applicable².

Unincorporated Hernando County has county zoning administered by the Zoning Division, which reviews residential and commercial site plans^3,5. Identify the parcel's district first, then use Appendix A of the county code and the published dimensional schedules to determine allowed uses and structure placement³. Minimum lot size, setbacks and maximum height vary by district; Planned Development Project requirements come from the individual master plan, and platted lots may have additional easements or buffers^2,3,13. Minimum living area is 900 square feet in Agricultural/Residential districts; R-2, R-3, R-4 and RR require 900 square feet for single-family dwellings and 600 square feet for other dwellings^14,15. AG and Country 2.5 require 600 square feet for a primary single-family dwelling; Country 2.5 also lists that minimum for mobile homes¹⁶. Inside Brooksville, the city sets zoning; septic permitting and inspections remain with the Florida Department of Health in Hernando County under DEP rules^4,17.

Florida DEP implements the statutes and regulations for onsite sewage systems, while the Florida Department of Health in Hernando County continues local permitting and inspection⁴. New installations, repairs, modifications and approvals of existing systems require a septic permit from the local health department⁴. Inspection or reinspection requests must be made online by a certified provider rather than the homeowner or occupant⁴. Reach Environmental Public Health at 352-540-6812, email fdoh27eh@flhealth.gov, or visit 7551 Forest Oaks Blvd, Spring Hill, FL 34606⁴. A single-family building application must include a septic permit or county utility deposit receipt when applicable². Only about 4.5% of county soils are rated without severe limits for a conventional drain field, so test septic feasibility early rather than assuming a standard system will fit¹⁸.

We could not confirm Hernando County's rules for long-term RV occupancy, temporary camping or tiny-home occupancy on private land, so ask the Zoning Division about the exact parcel and proposed use before buying or moving a unit onto it⁵. A small dwelling still has to fit its zoning district: published minimum living areas include 600 square feet for primary single-family dwellings in AG and Country 2.5 and either 600 or 900 square feet in R-2, R-3, R-4 and RR, depending on dwelling type^15,16. Planned Development Project standards depend on the individual master plan¹³.

In unincorporated Hernando County flood hazard areas, the county allows a recreational vehicle or park trailer to sit temporarily only if it is on site for fewer than 180 consecutive days, or is fully licensed and highway-ready on wheels or jacking with only quick-disconnect utilities and no additions, rooms, stairs, decks or porches¹⁹. Placement that does not meet those limits must meet the county's manufactured-home standards¹⁹.

1. Ask the Zoning Division to verify the parcel's district, permitted use, lot size, setbacks, height limit, dwelling-size rule and flood-zone status^2,3,5.
2. Confirm legal access before designing the site; Class D subdivisions need driveway-location approval from Hernando County Public Works, and driveway installation or right-of-way improvement needs a Right-of-Way permit or Building Department driveway permit; access to a state highway needs FDOT permits^20,21.
3. Obtain a septic permit or county utility deposit receipt when applicable^2,4.
4. Choose a licensed contractor or personally appear and sign for a qualifying owner-builder permit².
5. Submit the application and required documents through the online building-permit portal¹².
6. Complete the listed inspections and obtain the required Certificate of Occupancy or Completion before use².

Ask the Zoning Division to verify zoning and flood-zone status before treating a Hernando County parcel as buildable⁵. Development in a Special Flood Hazard Area is regulated with the Florida Building Code⁶. A Class D split creates two parcels and follows a county approval process²⁰. Class B subdivisions require a 60-foot access and utility tract, at least 30 feet of cleared right-of-way and access by a county-owned and county-maintained roadway at least 30 feet wide²². Within a Class B subdivision, a roadway serving more than 10 lots requires an 18-foot compacted limerock travel surface or another surface approved by the county engineer²². Only about 4.5% of county soils are rated without severe limits for a conventional septic drain field¹⁸. Florida requires a water-well permit, but we could not confirm the local issuing office²³.