Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
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Frequently asked in St. Petersburg
What are the rules for ADUs in Florida?
Florida has laws promoting ADUs, but St. Petersburg has specific local regulations you'll need to follow. These typically cover things like the maximum size of the ADU, how far it must be from property lines (setbacks), and parking requirements. Pros experienced in St. Petersburg know these details.
How much does an ADU cost in Florida?
The cost of an ADU in Florida can vary widely. Factors like the size and complexity of the design, the quality of materials used, and site preparation needs all play a role. For an accurate figure specific to your St. Petersburg property, a detailed quote is essential.
What are the disadvantages of ADUs in St. Petersburg?
Potential disadvantages of ADUs in St. Petersburg include upfront construction costs and possible increases in property taxes or utility bills. You'll also want to consider how it might affect your yard space. However, the added rental income or living space often makes these drawbacks worthwhile.
Is an ADU allowed in St. Petersburg?
What is involved in the ADU permit process in St. Petersburg?
The ADU permit process in St. Petersburg involves submitting detailed building plans to the city for review and approval. This includes architectural drawings, site plans, and engineering details. Once approved, you can proceed with construction. Pros will manage this application process for you.
What are the benefits of adding an ADU in St. Petersburg?
Adding an ADU in St. Petersburg offers significant benefits, such as generating rental income, providing housing for family members, or increasing your property's overall value. It's a smart way to maximize your investment in a popular Florida city like 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. Pete, The EDGE District, Old Northeast, Gulfport, Tyrone — and every surrounding area.
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