Adu company — St. Petersburg, FL | AccessoryDwellingUnit Services

Looking for adu company in St. Petersburg, FL? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve St. Petersburg and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

A professional company handles the heavy lifting, including architecture, engineering, permit submittals, and the actual construction labor. You need an experienced team when you want to ensure your unit is built to code, structurally sound, and completed on a predictable schedule. We act as your single point of contact, coordinating every trade and inspection so you aren't managing subcontractors yourself. We provide professional oversight from start to finish. Exact pricing confirmed free on the call.

Frequently asked in St. Petersburg

What are the disadvantages of ADUs?

Potential downsides to ADUs include the initial construction expense and the need for proper planning to avoid issues with local zoning or building codes. You'll also need to factor in ongoing maintenance and consider how the addition might affect your property taxes or insurance.

How much does an ADU cost in Florida?

In Florida, including St. Petersburg, ADU costs vary widely. Key drivers are the size, complexity of the design, foundation requirements, and the quality of interior and exterior finishes. Building in coastal areas may also involve additional costs for enhanced wind resistance.

What are the rules for ADUs in St. Petersburg?

St. Petersburg has specific ordinances regarding ADUs, covering aspects like minimum lot size, maximum square footage, and requirements for separate utility meters and entrances. It's essential to consult these local regulations before you plan your project to ensure compliance.

Is an ADU allowed in Florida?

Yes, ADUs are permitted in Florida, and many cities, like St. Petersburg, are actively encouraging their development. However, each municipality will have its own set of rules and permitting processes that homeowners must follow for ADU construction.

What affects ADU pricing in St. Pete?

The cost of an ADU in St. Petersburg is heavily influenced by the foundation, the complexity of plumbing and electrical work, the choice of flooring and fixtures, and the overall building materials. Site accessibility for construction can also impact the final price.

Can I get advice on building an ADU in St. Petersburg?

Also serving nearby: Clearwater · Tampa · Lakeland · Plantation · North Port

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More on this: HUD ADU resources — ADU policy and financing research.