Adu building — St. Petersburg, FL
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
The construction process for an ADU involves taking a project from the initial design phase through final inspections. You need this service when you are ready to convert a garage, build a basement apartment, or construct a new detached unit. It covers everything from foundation work and framing to utility hookups and interior finishing. Costs depend on the size of the unit and the complexity of your site. Exact pricing confirmed free on the call.
Frequently asked in St. Petersburg
What are the downsides to putting in an ADU in St. Petersburg?
Some St. Petersburg homeowners worry about ADU costs. Permitting can also take time. You’ll want to check local zoning rules carefully. Talk to a local pro about these specific concerns. They can give you a clear picture for your situation.
How much does an ADU typically cost in Florida?
What are the rules for adding an ADU in St. Petersburg?
St. Petersburg has specific rules for ADUs. These cover size limits and setbacks. You'll need permits. A licensed pro knows these rules inside and out. They ensure your ADU meets all requirements.
Are ADUs allowed in all parts of St. Petersburg?
Generally, ADUs are allowed in many St. Petersburg neighborhoods. Zoning laws dictate specifics for each area. A local specialist will confirm if your address is eligible. They can explain any restrictions that apply.
What's involved in building an ADU unit?
Can I find local ADU services in St. Petersburg?
What does 'accessory dwelling unit' actually mean?
An accessory dwelling unit, or ADU, is a second, smaller housing unit on a single-family lot. It's like a backyard cottage or basement apartment. It provides extra living space. These units can be rented out or used by family.
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, Old Northeast, Beach Park, Crescent Lake, Kenwood, Gandy — and every surrounding area.
More services in St. Petersburg
Everything else we cover here.
24 hour adu · accessory dwelling unit · accessory dwelling unit builders · accessory dwelling unit builders near me · accessory dwelling unit companies · accessory dwelling unit construction · accessory dwelling unit construction cost · accessory dwelling unit contractor · accessory dwelling unit contractor san diego · accessory dwelling unit cost · accessory dwelling unit financing · accessory dwelling unit for rent · accessory dwelling unit grants · accessory dwelling unit homes · accessory dwelling unit massachusetts · accessory dwelling unit near me · accessory dwelling unit new hampshire · accessory dwelling unit permit · accessory dwelling unit permit cost · accessory dwelling unit rental · accessory dwelling unit services · accessory dwelling units adus · adu builder · adu company · adu construction · adu cost · adu estimate · adu housing · adu near me · adu permit · adu quote · adu services · adu unit · affordable accessory dwelling unit · affordable adu · backyard accessory dwelling unit · best accessory dwelling unit · best adu · cost of accessory dwelling unit · cost to build accessory dwelling unit · detached accessory dwelling unit · emergency adu · homes with in law suites · homes with mother in law suites · local adu · modular accessory dwelling unit · prefab adu · prefabricated accessory dwelling unit · what does accessory dwelling unit mean