Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
An ADU company manages the entire project lifecycle, from initial design and permit acquisition to the final walk-through. You need a full-service company if you want to avoid the stress of coordinating different contractors or handling complex municipal filings yourself. We act as your single point of contact, ensuring your vision is executed correctly while keeping you informed at every stage of construction. Exact pricing confirmed free on the call.
Frequently asked in St. Petersburg
What are the disadvantages of ADUs?
Potential disadvantages of ADUs include increased utility bills for your main home and the need for careful consideration of parking and privacy for both you and your future tenants. You'll also want to factor in any potential changes to property taxes. These are all important points to discuss for your St. Petersburg project.
How much does an ADU cost in Florida?
What are the rules for ADUs in St. Petersburg?
St. Petersburg has specific regulations regarding ADUs, covering aspects like lot coverage, setbacks, and the types of ADUs permitted. These rules are in place to ensure compatibility with existing neighborhoods and infrastructure. We can help you navigate these St. Petersburg ordinances.
Is an ADU allowed in my St. Petersburg neighborhood?
Generally, ADUs are permitted in many residential zones within St. Petersburg, but specific restrictions may apply. Factors like lot size and existing structures play a role. We can quickly assess your property's eligibility and provide guidance on local St. Petersburg rules.
What permits are needed for an ADU in St. Petersburg?
How long does it take to build an ADU in St. Petersburg?
The timeframe for ADU construction in St. Petersburg can range from a few months to over half a year. This depends on the project's complexity, permitting timelines, and the availability of materials and labor. We can provide a more accurate estimate after a site consultation.
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, Beach Drive, Gulfport — and every surrounding area.
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