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

Yes. Unincorporated Pinellas County requires a permit for a new building, addition, remodel, demolition, or other regulated work that exceeds $500 or requires inspection¹. Pinellas County identifies the current construction standard as the 2023 Florida Building Code, Building, Eighth Edition¹¹. A qualifying nonresidential farm building on land used for bona fide agriculture may be exempt from building-code and local code or fee requirements, but the exemption does not cover a residence and floodplain rules still apply¹².

The Pinellas County Building and Development Review Services Department is the permit contact for unincorporated Pinellas County¹³. Reach the office at 440 Court Street, Clearwater, FL 33756, or by phone at (727) 464-3888; its posted hours are Monday through Friday, 8 a.m. to 4 p.m⁶.. Applications can be filed through the Pinellas County Access Portal after creating an account¹³. The county publishes a building permit fee schedule and says inspection and private-provider fees are updated effective July 1, 2026⁶. An owner-builder may begin an application for qualifying work but must appear in person with valid state-issued identification for affidavit verification, and the option does not waive the building permit⁶.

Pinellas County Municode Chapter 138 supplies zoning regulations for unincorporated Pinellas County only; incorporated municipalities have separate authorities and rules². Inside Clearwater, Dunedin, Belleair, Belleair Bluffs, Belleair Beach and Belleair Shore, the city or town sets zoning^{3,4,14,15,16,17}. Septic permits stay with the state health department even inside Belleair Shore¹⁸.

In the county, the parcel's district matters. Listed residential minimums range from 6,000 square feet in R-3 to 2 acres in R-A⁸. For R-5 single-family detached homes, the district summary lists front setbacks of 10 feet or 20 feet depending on structure or garage, side setbacks of 5 feet or 10 feet depending on interior or side-street position, a 5-foot rear setback, and a 35-foot height limit⁸. R-A and R-1 setbacks differ, with rear setbacks of 20 feet and 10 feet, respectively⁸. Heights in R-A and R-1 are 35 feet, and attached, duplex and triplex uses in R-5 reach 45 feet⁸. Overlay and special districts can change these numbers, and the published summary took effect in 2019 and is not the complete Land Development Code⁸. Ask Development Review Services to verify current dimensions and lot coverage; we could not confirm a general minimum dwelling size⁶.

Septic (OSTDS) permits and inspections in Pinellas County go through the Florida Department of Health in Pinellas County⁵. Start with that office's onsite sewage program page⁷. An onsite system requires a septic permit and is allowed only where a public-sewer connection is not required and the lot's geology and soils support sanitary operation¹⁹. Onsite systems are prohibited where geology and soils are unsuitable and restricted in wellfield-protection areas¹⁹. A site evaluation determines the specific lot's suitability²⁰. USDA data rates 0% of assessed Pinellas County soils as free of severe limitations for a conventional drain field, so obtain that evaluation before buying and budget for a possible engineered or alternative system²¹.

We could not confirm a general Pinellas County rule allowing occupancy of an RV or standalone tiny home on private residential land; ask Development Review Services about the parcel and proposed use^2,6. Florida's recreational-vehicle-park rule addresses transient stays in permitted parks or camps and does not establish permission to live in an RV on an ordinary residential parcel¹⁰. Manufactured homes have a clearer path only in applicable districts: the county summary identifies a Residential Mobile/Manufactured Home district with mobile-home parks and subdivisions subject to district-specific lot, space, setback, and height standards⁸. One narrow tiny-home path exists: tiny homes may be used as housing when a legally established nonconforming mobile home park inside a community redevelopment area is redeveloped as a special exception use⁹. That route applies only to parks in existence before January 30, 1990, requires site-plan approval, affordable-housing criteria and a tenant relocation plan, is barred in the coastal storm area and the 100-year floodplain, and follows the Florida Building Code⁹. It does not open private residential lots to tiny homes. A manufactured home also needs a certificate of occupancy after a compliant onsite installation inspection, while local zoning and setback rules remain applicable²². A short-term rental in unincorporated Pinellas County requires a Certificate of Use and a Code Enforcement inspection⁶.

1. Determine whether the parcel is unincorporated or inside a municipality, then confirm the current zoning district and standards with the responsible authority^2,8.
2. Confirm access early; a new or replacement driveway proposed in county right-of-way requires a Right of Way Utilization Form⁶.
3. If the project divides land into three or more lots, or any division creates a new street, begin subdivision and platting review before designing individual homes²³.
4. If public-sewer connection is not required and the lot may support septic, obtain a site evaluation and apply through the Florida Department of Health in Pinellas County¹⁹.
5. Choose a licensed contractor or complete the in-person owner-builder verification for qualifying work⁶.
6. Create an Access Portal account and submit the plans, surveys, and project-specific forms requested by the county¹³.
7. For new construction in an A or V flood zone, include the Flood Zone Application²⁴.
8. Complete required inspections and obtain the applicable occupancy approval before moving in²⁵.

Before making an offer, verify whether the parcel is governed by Pinellas County or a municipality and obtain its current zoning requirements^2,8. Check lot size, setbacks, and building height against the intended use rather than relying on the district summary alone⁸. Confirm whether a proposed driveway enters county right-of-way and whether new construction lies in an A or V flood zone^6,24. Onsite sewage is limited to places where public-sewer connection is not required and the site's geology and soils are suitable¹⁹. We could not confirm the private-well permit requirement or a general water-connection rule; ask the responsible water-management district and Development Review Services before relying on either option. Typical property tax bills are about $2,324 per year at an effective rate near 0.7%²¹.