Accessory dwelling unit permit cost — 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
Securing permits is a mandatory step that covers city review fees, impact fees, and inspections to ensure your build meets safety codes. These costs vary significantly by city and the scope of your specific project. Because local jurisdictions set their own fee structures, we assist you in estimating these expenses during our initial consultation. We ensure you have a clear picture of all regulatory requirements before you begin. Exact pricing confirmed free on the call.
Frequently asked in St. Petersburg
What are the local rules for ADUs in St. Petersburg?
How much does an ADU typically cost in St. Petersburg?
Can I build a detached ADU in St. Petersburg?
What does 'accessory dwelling unit' actually mean?
An accessory dwelling unit, or ADU, is a second, smaller living space on a single-family home lot. It's a complete, independent living unit with its own kitchen, bathroom, and entrance. Think of it as a guest house or in-law suite. It's a versatile addition for many St. Petersburg homeowners.
Are there ADU services available near me in St. Petersburg?
What's involved in getting an ADU estimate?
Getting an ADU estimate is straightforward. You'll speak with a specialist who will ask about your property and your ADU vision. They'll discuss potential designs and features. This allows them to give you a more accurate idea of the investment. Call us to schedule yours.
What are the downsides of adding an ADU?
Potential downsides can include the initial construction cost and navigating permits. Some homeowners worry about privacy or how it might affect their yard space. However, the benefits of extra space, rental income, and increased property value often outweigh these concerns. Discuss your specific worries with a pro.
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, Crescent Lake, Beach Drive, Halls Bayview — and every surrounding area.
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