Pinellas County, Florida
Treasure Island is a city in Pinellas County, Florida. Treasure Island adopts its own zoning, so inside its limits Treasure Island’s rules apply, not the county’s. Septic permits inside Treasure Island come from Treasure Island. 6 rules below are quoted from official sources and independently re-checked, most recently on October 16, 2026. Rules for unincorporated land are on the Pinellas County page.
All land inside Treasure Island city; the city adopts and administers its own zoning regulations (Chapter 68)
“The following uses shall be allowed within the RU-75 zoning district as permitted, special exception or accessory uses as set forth herein:”
Dwellings in the RM-15 (Multiple Family Residential) zoning district inside Treasure Island city
single-family minimum living area: >= 1000 sq ft
“in an rm-15 zoning district, the minimum floor area of living area, not including garages, carport, balconies or screened porches shall be as follows: (1) dwelling, residential single-family: 1,000 square feet; (2) dwelling, residential two-family (duplex): 1,500 square feet; 750 square feet minimum per unit;”
“the minimum floor area of living area of a dwelling, single-family residential, not including garages, carports, balconies or screened porches, shall be 1,200 square feet of living area.”
Camping on private lots inside Treasure Island city
“upon any unimproved private lot unless such use is with the permission of the owner and permissible under the city's zoning ordinance;”
Privies, septic tanks and cesspools inside Treasure Island city
“except as provided herein, it shall be unlawful to construct or maintain any privy, privy vault, septic tank, cesspool or other facility intended or used for the disposal of sewage.”
We looked and could not find an official answer yet. Silence is not permission; ask Treasure Island or Pinellas County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Treasure Island publishes no rule on the point, not that none exists. Pinellas County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Treasure Island means bringing your own water and power. The kit we’d start with:
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