Seminole vs St. Petersburg
How do adu rules rules compare between Seminole, FL and St. Petersburg, FL?
St. Petersburg has fewer restrictions than Seminole.
Seminole, FL
Pinellas County
Seminole's land development code restricts accessory dwelling units. Most single-family zones allow only one principal dwelling, and second living units require special approval through the Planning and Zoning Division.
View full Seminole rules →St. Petersburg, FL
Pinellas County
St. Petersburg permits accessory dwelling units in many residential districts under Land Development Regulations Sec. 16.50.010, with size, lot, parking, and design rules expanded by Ordinance 509-H.
View full St. Petersburg rules →Key Facts Comparison
| Fact | Seminole | St. Petersburg |
|---|---|---|
| Permit Required | Yes, building permit | - |
| Second Kitchen | Generally prohibited | - |
| Zoning Review | Planning Division approval | - |
| Daily Fine | Up to $250 | - |
| Code section | - | Sec. 16.50.010 |
| Min lot size NT | - | 4,500 sq ft |
| Floor area cap | - | 40% of combined |
| Authorizing ord. | - | Ord. 509-H |
| Mailing address | - | Shared only |
Highlighted rows indicate differences between cities.
Seminole FAQ
Can I build a backyard ADU in Seminole?
Most single-family zones do not permit separate accessory dwelling units. Contact Seminole's Planning and Zoning Division to confirm whether your specific lot and district allow one.
Does Seminole allow in-law suites?
Attached in-law suites without a separate kitchen may be permitted as part of the principal dwelling. Detached units with full kitchens are generally treated as a prohibited second residence.
St. Petersburg FAQ
Can I add a backyard ADU to my St. Petersburg home?
Yes in NS, NT, and NSM districts that allow ADUs under Sec. 16.50.010, provided your lot meets minimum size, the ADU stays within 40 percent of combined floor area, and you obtain building and zoning permits.
Can my ADU have its own mailing address?
No. Sec. 16.50.010 and Ordinance 509-H require ADUs to share the primary residence's mailing address rather than receive a separate address from the post office.
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