Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
Obtaining an ADU permit is the formal process of getting local government approval to build your secondary unit legally. You need this step before any construction begins to ensure your project complies with zoning, safety, and building codes. Fees for permits are influenced by the size of the structure and the specific requirements of your city or county jurisdiction. Exact pricing confirmed free on the call.
Frequently asked in St. Petersburg
How much does it cost to build an ADU in St. Petersburg?
How do I find a good ADU contractor in St. Petersburg?
What's the typical construction cost for an accessory dwelling unit?
What kinds of ADU services are available in St. Petersburg?
In St. Petersburg, you can find a range of ADU services. This includes design, permitting assistance, and full construction. Some pros also offer modular ADU options. They can handle everything from start to finish. Call us to discuss the services you need for your ADU project.
What's involved in ADU building in St. Petersburg?
Can I rent out my accessory dwelling unit in St. Petersburg?
Are modular ADUs a good option for St. Petersburg?
Also serving nearby: Clearwater · Tampa · Lakeland · Plantation · North Port
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of St. Petersburg — population 263,553; about 4,264 residents per square mile across 61.8 sq mi.
Neighborhoods served in St. Petersburg: Downtown St. Petersburg, The EDGE District, Old Northeast, Crescent Lake, Tyrone — and every surrounding area.
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