12 Best ADU Builders in Tampa – 2026

Adding an ADU in the Tampa Bay area can create space for tenants, relatives, or other household needs, but local rules are more restrictive than many general online guides imply. Within the City of Tampa, standard accessory dwelling units are allowed only in four designated areas, while Extended Family Residences follow a separate set of occupancy requirements and may be permitted citywide.

Homeowners who prefer real estate investing without managing an ADU build can also explore Ark7, which offers fractional shares in professionally managed rental-property series. Investments can begin at $20 per share, depending on the specific offering and investor eligibility.

Below, we review 12 companies worth considering for ADU projects across Tampa Bay, using publicly available information current to 2026. Since costs, project schedules, customer ratings, service coverage, and contractor licensing can change, verify licenses through Florida DBPR and confirm all project details directly with the provider before committing.

Key Takeaways

• Tampa currently allows conventional ADUs in four designated areas: Seminole Heights, the area around Lowry Park, the East Tampa Overlay, and the Tampa Heights Overlay.
• Maximum ADU size varies by zoning area rather than following one citywide limit. Tampa Heights supplemental standards allow up to 1,100 square feet and require one parking space above 600 square feet.
• Under the City’s current guidance, the main residence must be owner-occupied.
• Extended Family Residences remain available citywide but restrict occupancy to family members and cannot be rented to outside tenants.
• Vendor-cited construction costs run from roughly $45,000 for garage conversions to $280,000 for premium detached builds, though pricing is highly project-specific.
• Tampa city zoning rules do not apply countywide, and Pinellas County and its municipalities operate under separate regimes.
• Ark7 offers fractional shares in professionally managed rental properties starting at $20 per share, subject to offering availability and eligibility.

How This List Was Compiled

This list was assembled from publicly available company information rather than a scoring model, and no ranking is implied by the order below. The companies were compared on hurricane and permitting experience, construction methodology, published pricing, and publicly visible customer feedback. Company-published pricing, project counts, and review scores are labeled as such throughout. Verify licensing, insurance, and current pricing directly with each firm before contracting, since license status can change at any time.

Tampa ADU Rules to Understand First

• Where ADUs are allowed: According to the City of Tampa’s current guidance, conventional ADUs are permitted in four areas: Seminole Heights, the area around Lowry Park, the East Tampa Overlay, and the Tampa Heights Overlay.
• Parcel-level eligibility: Eligibility is determined at the parcel level, so confirm your specific address through the City’s ADU map and planning staff rather than assuming neighborhood-level eligibility.
• Size: Maximum size varies by zoning area rather than one citywide figure. Tampa Heights supplemental standards allow up to 1,100 square feet, and Seminole Heights carries its own standards.
• Parking: Tampa Heights requires one parking space for units larger than 600 square feet.
• Owner-occupancy: Under the City’s current guidance, the main residence must be owner-occupied.
• Extended Family Residences: Available citywide, but occupants must be family members and units cannot be rented to outside tenants.
• Jurisdiction: Tampa city rules do not apply countywide. Pinellas County and its municipalities have separate zoning regimes.

12 ADU Companies Operating in Tampa Bay for 2026

1. Craftline Remodeling (Dual-Metro Coverage)

Service Area: Hillsborough, Pinellas, and Pasco Counties

Type: Design-Build

License: CBC1269114, Florida Certified Building Contractor

Offices: 306 E Tyler St, Tampa, FL 33602 and 5741 9th Ave N, Suite 101, St. Petersburg, FL 33710

Phone: (813) 522-4359

Craftline advertises ADU and garage-conversion services across Tampa Bay from two offices covering both major metro areas.

What Sets Craftline Apart:

• Ground-up detached ADUs, backyard cottages, and attached in-law suites
• Garage conversions to living spaces
• Full design-permit-build service

2. Elite Builder Renovation (Recent ADU Entry)

Service Area: Tampa, St. Petersburg, Clearwater, Lutz, Wesley Chapel, Brandon

Type: General Contractor

License: CGC1537676, Certified General Contractor

Address: 2510 Lorraine St, Tampa, FL 33614

Phone: (813) 743-5354

Rating: Company-advertised 4.8/5 stars on Google

Elite Builder Renovation is a registered Florida LLC that announced ADU services in 2025.

What Sets It Apart:

• Custom ADU construction and detached backyard guest suites
• Garage conversions to bedrooms and apartments
• ADU-specific zoning and permit handling

3. TomCo Solutions (Multiple Credentials)

Service Area: Tampa Bay metro area

Type: Design-Build

Licenses: CRC1332920, with CBC1264541 and AR100677 also listed on the company site

Offices: 412 E Madison St, Suite 1209, Tampa, FL 33602 and 360 Central Ave, St. Petersburg, FL 33701

Phone: (813) 922-2299

Ratings: Company-advertised BBB A+ grade and a separately advertised 4.7/5 star average. These are different metrics, so confirm each independently.

The company advertises more than 10 years in business across Tampa Bay.

What Sets It Apart:

• Detached ADUs, attached in-law suites, and garage conversions
• Extended Family Residences
• Architecture registration alongside contractor licensing

4. Yalco Construction LLC (3D Design Visualization)

Service Area: Tampa and St. Petersburg

Type: Design-Build

License: CRC1331704, Certified Residential Contractor

Address: 4003 S Westshore Blvd #3307, Tampa, FL 33611

Yalco advertises ADU services and a design-build approach that includes 3D renderings before construction.

What Sets It Apart:

• Custom homes and ADUs, with construction management
• Full design with 3D renderings

5. Construction Corps, Inc. (After-the-Fact Permitting)

Service Area: Clearwater, St. Petersburg, Dunedin, Largo, Tampa, Riverview

Type: Veteran-Owned Design-Build

Credentials: CGC1530192 General Contractor; FBPE39242 engineering business authorization; EC13013956 Electrical; CFC1432954 Plumbing

Address: 2054 Weaver Park Drive, Clearwater, FL 33765

Phone: (727) 999-1855

Construction Corps addresses an underserved need: bringing unpermitted units into compliance. Note that FBPE39242 is an engineering business authorization rather than a contractor license in the same sense as the CGC.

What Sets It Apart:

• Legalizing unpermitted ADUs through after-the-fact permitting
• Free parcel ADU eligibility checks
• In-house capabilities that may reduce the need to coordinate outside firms

Unpermitted improvements can complicate permitting, insurance, financing, appraisal, and resale, and may need legalizing depending on local requirements and the transaction.

6. Tampa Bay ADU (End-to-End Services)

Service Area: Pinellas County, Hillsborough County, greater Tampa Bay

Type: Design-Permit-Build

Base Location: St. Petersburg, FL

Phone: (727) 270-8404

Tampa Bay ADU advertises full design-permit-build services with a local zoning focus.

What Sets It Apart:

• End-to-end ADU services across Pinellas and Hillsborough
• St. Petersburg regulations and Tampa special use applications

7. CASK Construction (Published Pricing by Bedroom)

Service Area: St. Petersburg and Tampa Bay neighborhoods

Type: ADU Specialist

Pricing: Company-published, ranging from roughly $160,000 for a one-story studio to $370,000 for a two-story two- to three-bedroom unit

CASK positions itself as a St. Petersburg ADU specialist and publishes pricing by bedroom count, which is uncommon transparency in this market.

What Sets It Apart:

• Published price bands by unit size and story count
• Studio and one-bedroom units from 320 to 575 square feet
• Two- and three-bedroom units from 650 to 800 square feet
• Published estimates may include permitting and inspection services; confirm inclusions in the written proposal

8. Coastal Haven Design + Build (Clearwater Base)

Service Area: Tampa Bay regional market

Type: Design-Build

Address: 29399 US Highway 19 North, Clearwater, FL 33761

Coastal Haven advertises Tampa Bay ADU zoning, permits, design, and construction under one contract.

What Sets It Apart:

• Garage conversions, backyard cottages, and detached ADUs
• Florida Building Code compliance
• Ask for names and license numbers of any architect or engineer assigned to your project

9. Mesocore (Factory-Direct Modular)

Service Area: Statewide Florida delivery including Tampa Bay

Type: Prefab/Modular Manufacturer

Pricing: Company-published Model E at $129,000, Model A from $164,000

Installation: Approximately 10 days on site after permits and site preparation

Phone: (561) 386-7252

Mesocore advertises designs rated up to 180 mph, which may meet or exceed applicable requirements in some Florida locations, subject to project-specific engineering. Florida wind-design requirements vary by location and exposure.

What Sets It Apart:

• Model E at 410 sq ft, 1BR/1BA; Model A at 800 to 1,130 sq ft
• Integrated solar with 6kW array and 20kWh battery storage
• MEP systems certified by Intertek
• Base pricing covers the unit only; site work, permits, and delivery are additional

10. Goshen Tiny Homes (Block-on-Slab Construction)

Service Area: Tampa Bay, St. Petersburg, Clearwater, Brandon, Largo, Lakeland

Type: On-Site Block Construction

Pricing: Company-published turnkey pricing from $75,000 for studios to $255,000 for three-bedroom units

Address: 8785 Stone Harbour Loop, Bradenton, FL 34212

Phone: (813) 955-7846

Despite the “Tiny Homes” name, Goshen builds ADUs on-site using block construction on slab foundations. Company materials describe turnkey pricing including design, permits, construction, utility connections, and certificate of occupancy. Confirm exact inclusions and exclusions in your written contract.

What Sets It Apart:

• Permanent block-on-slab construction rather than prefabrication
• Turnkey pricing structure across four unit sizes
• The company says its team has more than 30 years of combined building experience; third-party records indicate Goshen Tiny Homes LLC was founded in 2023, so the figure reflects team experience rather than company operating history

11. Florida Made Tiny Homes (Shell Options)

Service Area: Florida statewide, per the company’s current service-area page

Type: On-Site Block Construction

Pricing: Catalog upon request

Florida Made offers a shell option for homeowners comfortable completing their own finishes, which lowers the entry point considerably.

What Sets It Apart:

• Shell ADU providing basic structure for owner finishing
• Shell+ tier including drywall and flooring
• Full turnkey build option
• In-house design teams and permit coordinators; confirm current Tampa Bay availability directly

12. Artesa Construction Group (South Florida, May Travel)

Service Area: Miami-Dade and Broward counties

Type: Garage Conversion Specialist

Pricing: Quote upon request

Artesa specializes in garage conversions. Its confirmed market is South Florida rather than Tampa Bay, so it is listed separately from the firms above. Contact the company to discuss whether it will accept a Tampa Bay project.

What Sets It Apart:

• Garage conversion expertise and design-to-construction services
• Local code compliance experience in a different Florida market

How to Choose the Right ADU Builder

• By budget: Vendor-cited garage conversions start around $45,000 to $90,000, attached ADUs run roughly $90,000 to $160,000, detached new builds land at $150,000 to $250,000, and premium detached units reach $280,000. Modular installed pricing commonly falls between $90,000 and $210,000.
• By timeline: Modular installation is short, with one manufacturer advertising roughly 10 days on site after permitting and site preparation, but design, permitting, factory production, utility work, and inspections extend the total. Site-built firms commonly quote 5 to 12 months to move-in ready.
• By geography: Hillsborough and Pinellas are served by Craftline, TomCo, and Tampa Bay ADU; Tampa proper by Elite Builder and Yalco; Clearwater and north Pinellas by Construction Corps and Coastal Haven; St. Petersburg by CASK.
• By construction method: Modular offers a short on-site phase, block-on-slab creates a permanent improvement without delivery constraints, and shell packages let capable owners trade labor for savings.

Questions to Ask Any Tampa ADU Builder

• Is my parcel inside one of the four designated ADU areas, confirmed against the City’s ADU map?
• What size does my specific zoning area allow, and does a parking space apply?
• How do you handle Tampa’s special use application process?
• What is your total project cost, including permits, site work, and utility connections?
• Does your quoted timeline start at contract signing, permit issuance, or groundbreaking?
• What warranty covers workmanship, and can you provide lien releases from subcontractors?

Financing an ADU in Tampa

• Home equity options: Home equity lines of credit and cash-out refinancing draw on existing equity. Compare the blended cost of a refinance against alternatives, since replacing a low-rate mortgage can raise total borrowing costs.
• Construction lending: Construction loans disburse in stages as work progresses, converting to permanent financing at completion.
• ADU-specific products: Some lenders offer products designed for ADU construction, including options that consider a property’s value after completion rather than only current equity. Terms, rates, and eligibility vary by borrower and change frequently.
• Government-backed options: FHA 203(k) renovation loans may apply to qualifying projects.
• Permitting allowance: Plan review times vary by project complexity, completeness, and required corrections, so ask each builder for a local estimate rather than budgeting a fixed window.

Comparing ADUs and Fractional Real Estate

Building an ADU can create rental-income potential and may increase a property’s value, though the amount varies by property, size, legality, construction quality, and appraisal methodology. It also requires substantial upfront capital, months of project management, and ongoing landlord responsibilities.

ADU considerations:

• Realtor.com currently reports median rents of roughly $2,300 for Old Seminole Heights and $2,425 for Tampa Heights across rental inventory generally, not specifically ADUs. ADU rents differ because of size, layout, and shared-lot considerations.
• Independent Tampa-specific studies of ADU returns are limited. One modular manufacturer’s Pinellas County analysis shows a payback range of roughly 5.8 to 10 years, a vendor estimate rather than an independent benchmark.
• Any rent-to-cost figure should be stated as an illustrative gross estimate, calculated as annual rent divided by total project cost before expenses, not as a return on investment.
• Model returns with your own assumptions: achievable rent from current comparables, vacancy and turnover, maintenance and reserves, management fees, insurance and tax increases, and financing costs.

How fractional investing compares:

For those who prefer fractional real estate exposure rather than developing and managing an ADU directly, Ark7 is another model to consider:

• Entry point as low as $20 per share, subject to offering availability and eligibility
• Cash distributions when available, subject to property performance, expenses, reserves, and offering terms
• Professional property selection and management
• Exposure across multiple markets rather than one local property
• No construction timelines or permitting to manage
• Potential access to secondary trading, subject to holding periods, legal and state restrictions, platform availability, and market liquidity. Liquidity is not guaranteed, and investors should be prepared to hold shares indefinitely.
• Ark7 IRA options support Traditional and Roth accounts, subject to IRA rules, custodian fees, and individual circumstances

These are speculative securities involving substantial risk, including illiquidity, lack of diversification, and complete loss of capital.

Conclusion

Tampa Bay’s builder market spans modular manufacturers, block-construction specialists, shell providers, and full-service design-build firms. The harder part is eligibility: Tampa permits conventional ADUs in four designated areas, size limits vary by area, and the main residence must be owner-occupied. Those three facts determine viability before any builder conversation begins.

Why Tampa Bay Stands Out for ADU Projects

• Defined eligible areas: The City publishes guidance for Seminole Heights, Lowry Park, East Tampa, and Tampa Heights.
• Area-specific standards: Tampa Heights allows units up to 1,100 square feet.
• Citywide EFR pathway: Extended Family Residences offer a family-occupancy option outside those four areas.
• Deep contractor bench: Multiple licensed Tampa Bay firms advertise ADU design-permit-build services.
• Documented housing need: Roughly 3 million Florida households are cost-burdened, including about 2.4 million low-income households, per the Florida Housing Coalition.

Investor Tips for Tampa ADU Projects

Confirm eligibility at the parcel level through the City’s ADU map before spending anything on design, since neighborhood names are not a reliable proxy for zoning boundaries. Verify each contractor’s qualifying license and active status in DBPR immediately before signing, and check that the category covers your project scope. Build your own return model rather than adopting a vendor’s: pull current ADU-specific rental comparables, then subtract vacancy, maintenance, management, insurance, taxes, and financing costs. Get every inclusion and exclusion in writing, particularly permits, utility connections, and impact fees, the most common sources of budget surprise.

For those who prefer residential real estate exposure without a construction project, Ark7 offers fractional interests in rental-property series starting at $20 per share, subject to offering availability and eligibility.

Frequently Asked Questions

How much does it cost to build an ADU in Tampa?

Vendor-cited ranges place garage conversions at roughly $45,000 to $90,000, attached ADUs at $90,000 to $160,000, detached new builds from 600 to 750 square feet at $150,000 to $250,000, and premium detached units from 800 to 950 square feet at $200,000 to $280,000. Modular units installed commonly run $129,000 to $210,000. These are illustrative budgeting figures compiled from vendor estimates, not an independent survey, so gather multiple written quotes.

What neighborhoods in Tampa currently allow ADU construction?

According to the City of Tampa’s current guidance, conventional ADUs are permitted in four areas: Seminole Heights, the area around Lowry Park, the East Tampa Overlay, and the Tampa Heights Overlay. Extended Family Residences, which restrict occupancy to family members, remain available citywide. Eligibility is parcel-level, so verify your specific address against the City’s ADU map, since boundaries do not follow informal neighborhood lines.

What size ADU can I build in Tampa?

Maximum size varies by zoning area rather than a single citywide limit, so consult the applicable City guide for your parcel. Tampa Heights supplemental standards allow ADUs up to 1,100 square feet and require one parking space for units larger than 600 square feet. Seminole Heights carries its own supplemental standards. Confirm the limit for your specific area before commissioning design work.

How long does it take to build an ADU in Tampa?

Traditional site-built ADUs generally run several months from permit application to certificate of occupancy, with firms in this guide quoting 5 to 12 months to move-in ready. Plan review times vary by project complexity, completeness, and required corrections, so check the City’s current published turnaround. Modular options compress the on-site phase, with some manufacturers advertising assembly in about 10 days after permitting and site preparation, though manufacturing, utility work, and inspections extend the total schedule.

Can I legally rent my ADU to non-family members in Tampa?

Yes, if your property falls within one of the four designated ADU areas and meets the applicable zoning standards. Under the City’s current guidance, the main residence must be owner-occupied. Extended Family Residences, which are allowed citywide, restrict occupancy to family members only and cannot be rented to outside tenants.

Neither Ark7 nor Ark7 Properties is a broker-dealer or an investment adviser. Dalmore Group LLC, a registered broker-dealer and member FINRA/SIPC, located at 525 Green Place, Woodmere, NY 11598, is the broker-dealer of record for Ark7, an issuer direct offering. Neither Ark7 nor Dalmore makes recommendations or provides advice about investments, and nothing here should be construed as a recommendation for any security. Investments on the Ark7 platform are speculative and involve substantial risks, including illiquidity, lack of diversification, and complete loss of capital. Cash distributions are not guaranteed and are subject to property performance, expenses, reserves, and offering terms. Past performance is no guarantee of future results. This article is for informational purposes only.