The Best ADU Companies in Tampa Bay

Accessory dwelling units have become one of the fastest-growing types of residential construction in Florida. Whether you're building a rental unit, housing family members, or creating a detached home office, selecting the right builder can have a major impact on permitting, construction timelines, and overall project cost.

Rather than ranking companies solely by online reviews, this guide considers their specialization, service area, licensing, and the types of ADU projects they appear best equipped to handle.

8. Craftline Remodeling

Craftline Remodeling is a licensed design-build contractor serving Tampa, St. Petersburg, Hillsborough, Pinellas, and Pasco counties. Their experience with additions, custom homes, and ADUs makes them one of the region's more versatile builders.

Best for: homeowners combining an ADU with larger renovations.

7. CASK Construction

Located in St. Petersburg, CASK Construction has more than 15 years of experience building custom residential projects, including accessory dwelling units. Rather than relying on standard floor plans, the company emphasizes fully customized designs.

Best for: homeowners wanting a highly personalized ADU.

6. TomCo Solutions

TomCo Solutions focuses heavily on energy-efficient residential construction and ADU development throughout Tampa Bay. Their approach may appeal to homeowners interested in reducing long-term operating costs through efficient building systems.

Best for: energy-conscious homeowners.

5. Florida Made Tiny Homes

This family-owned Florida builder has more than 30 years of experience and offers both complete ADUs and shell-only construction options. A shell package can be attractive for homeowners planning to complete portions of the interior themselves.

Best for: flexible budgets and shell ADU projects.

4. Affordable ADU

Based in St. Petersburg, Affordable ADU specializes in detached backyard units and garage conversions. Standardized designs can help create more predictable pricing than fully custom projects.

Best for: budget-conscious homeowners.

3. Artesa

Artesa focuses primarily on garage conversions, allowing homeowners to create additional living space without constructing an entirely new building. Where local zoning allows, this can be a cost-effective alternative to a detached ADU.

Best for: converting existing garages into living space.

2. Mesocore

Mesocore specializes in modular construction and partners with Ocean Lending Capital to provide financing solutions alongside installation services. Homeowners interested in factory-built construction may appreciate this approach.

Best for: modular ADU projects with financing options.

1. Tampa Bay ADU

Unlike many general contractors, Tampa Bay ADU focuses almost exclusively on accessory dwelling units. The company assists homeowners with feasibility studies, zoning research, permitting, design, engineering, and construction under one coordinated process.

Because local ADU regulations vary significantly between cities such as Tampa and St. Petersburg, homeowners looking for guidance before investing in plans may benefit from working with a builder that specializes in this project type.

Best for: first-time ADU projects requiring permitting and zoning guidance.

Questions to Ask Any ADU Builder

Before signing a contract, consider asking:

• Can you confirm my property qualifies for an ADU before design begins?

• Have you completed projects in my city?

• How do flood zone requirements affect construction?

• Will permits, impact fees, and utility connections be itemized in the proposal?

• Do you manage design and engineering in-house or through outside consultants?

Final Thoughts

Every builder on this list brings different strengths to the table. Some excel at custom architecture, others focus on modular construction, garage conversions, or comprehensive design-build services.

The right choice ultimately depends on your property, your budget, and how much assistance you need navigating local zoning and permitting requirements. Comparing several qualified builders and verifying their active Florida licenses before signing a contract is one of the best ways to start a successful ADU project.