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
If you are searching for an ADU near you, you are likely looking for local expertise to help you evaluate your property's potential. You need this when you are ready to assess whether your specific lot has enough space, the right setbacks, and proper utility access to legally support a new structure. We help homeowners verify their site feasibility and discuss the best design options that fit the character of your neighborhood and your personal needs.
Frequently asked in St. Petersburg
How much does an ADU cost in St. Petersburg?
What's the deal with prefab ADUs in St. Pete?
Prefabricated ADUs can be a quicker option for St. Petersburg homeowners. They are built off-site and then assembled on your property. This can sometimes streamline the construction process. We can help you understand if this fits your goals. Call us for a chat.
What exactly is an accessory dwelling unit?
An accessory dwelling unit, or ADU, is a second, smaller housing unit on a single-family home lot. Think of it as a backyard cottage or a basement apartment. It provides independent living space. It's a smart way to add usable area. We can explain all the specifics.
Can I build an affordable ADU in St. Petersburg?
Affordability for an ADU in St. Petersburg depends on your choices. Simpler designs and efficient materials can help. Planning carefully is crucial. We can guide you through options. Let's talk about your budget.
What's involved in building an ADU here?
Are backyard ADUs popular in St. Pete?
Backyard ADUs are a great way to use unused space in St. Petersburg. They offer privacy and independence for residents. Many homeowners love the flexibility they provide. We can help you explore this option. Call us for advice.
What's the general cost to build an ADU in 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, Crescent Lake, Beach Park — and every surrounding area.
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