Dunedin vs St. Petersburg
How do adu rules rules compare between Dunedin, FL and St. Petersburg, FL?
Dunedin and St. Petersburg have similar restriction levels.
Dunedin, FL
Pinellas County
Dunedin permits accessory dwelling units in select residential and form-based zoning districts subject to lot size, setback, and owner-occupancy standards in Chapter 103 of the Land Development Code.
View full Dunedin 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 | Dunedin | St. Petersburg |
|---|---|---|
| Code Chapter | Chapter 103 Zoning | - |
| Form-Based Code | Section 103-23.31 | - |
| Permit Required | Yes, building and zoning | - |
| Utility Connection | City water and sewer | - |
| Owner Occupancy | Often required | - |
| 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.
Dunedin FAQ
Can I build an ADU on any Dunedin lot?
No. ADUs are only allowed in zoning districts where they are listed as a permitted or accessory use, and the lot must meet minimum size and setback standards in Chapter 103.
Do I need a permit for an ADU in Dunedin?
Yes. A building permit, zoning review, and inspections are required. Plans must show compliance with setbacks, height limits, and Florida Building Code standards.
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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