What ADU can you build in your Sarasota County backyard?
Instant zoning report — see exactly what your zoning allows: permitted ADU types, size limits, setbacks, and lot requirements for your specific property.
Sarasota County ADU — Key Facts
- CRITICAL: City of Sarasota and Sarasota County are COMPLETELY DIFFERENT jurisdictions with opposite STR rules — always confirm which applies to your address
- City of Sarasota: allows ADUs up to 500 sq ft, owner-occupancy NOT required, STR allowed with 7-day minimum + Vacation Rental Certificate
- Sarasota County (unincorporated): ADUs capped at 500 sq ft, owner-occupancy REQUIRED, STR BANNED under 30 days — investor restrictions
- Both fall under State HVHZ designation — Sarasota County is in the Wind Borne Debris Region, construction costs elevated over inland Florida
- Siesta Key (see separate page) is within Sarasota County unincorporated — subject to county rules including STR ban
- Rental income $1,800–$3,200/month (long-term); City STR $150–$400/night in season — Sarasota is a premium arts/culture market
- Construction $135,000–$270,000; Sarasota has multiple arts organizations, Ringling Museum, and medical/financial sector tenants
Unincorporated Sarasota County Rules
*These rules apply if your address is NOT inside a specific city limit.
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Cities in Sarasota County
Sarasota County ADU — Frequently Asked Questions
The most common questions from Sarasota County homeowners about ADU rules, permits, and costs.
How do I know if my Sarasota address is in the City or in Sarasota County?
This is the most important question for Sarasota ADU planning. Look up your parcel at the Sarasota County Property Appraiser (sc-pa.com) — the jurisdiction field will show 'City of Sarasota' or 'Sarasota County.' The City of Sarasota is a relatively compact urban area. Most beach communities (Siesta Key, Venice, Osprey) are outside the city. The rules are fundamentally different — city allows STR (7-day min), county bans STR under 30 days.
Why is the Sarasota ADU size cap 500 sq ft when Florida SB-48 says 1,000 sq ft?
Both the City of Sarasota and Sarasota County have historically capped ADUs at 500 sq ft. Florida SB-48 (2026) establishes 1,000 sq ft as the statewide minimum that municipalities cannot undercut. As of March 2026, it's unclear whether Sarasota's 500 sq ft cap has been superseded by SB-48 or whether the city has already updated its ordinance. Contact City Development Services at (941) 263-6858 to confirm the current allowed size before engaging a designer.
Who are the typical tenants for a Sarasota ADU rental?
Sarasota has an unusually diverse and high-earning tenant base: arts sector professionals (Sarasota Opera, Florida Studio Theatre, The Ringling), Sarasota Memorial Hospital and physician practice employees, financial professionals (several wealth management firms have Florida offices in Sarasota), retirees relocating to the area on long-term leases, and seasonal snowbirds (November–April). This drives rental income of $1,800–$3,200/month for well-finished ADUs.
What is the Vacation Rental Certificate in the City of Sarasota?
The City of Sarasota requires a Vacation Rental Certificate for any rental of less than 30 days. The certificate requires an inspection, proof of owner or manager contact information, and an annual renewal fee ($300–$500). Once certified, you can operate STR on Airbnb and VRBO in the city. The 7-day minimum stay applies. Note: Sarasota County (unincorporated) does not offer this — STR under 30 days is banned in the county.
Is Sarasota County's owner-occupancy requirement strictly enforced?
Yes. Sarasota County's owner-occupancy requirement for ADUs in unincorporated areas is an active zoning condition, not just a suggestion. A non-owner-occupant who builds an ADU in unincorporated Sarasota County may be unable to legally rent the primary residence if they leave. This restriction makes county properties significantly less investor-friendly than City of Sarasota properties. Confirm jurisdiction before purchasing a property intended for ADU investment.
Florida ADU Laws 2026 — What SB-48 Actually Changed
Statewide rules on size limits, owner-occupancy, HOA overrides, and what local municipalities can still control.
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