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ADU & CASITA BUILDERS DIRECTORY

Compare ADU Builders & Casita Contractors by State

Accessory Dwelling Unit laws, maximum square footage limits, and parking exemptions differ dramatically across state legislatures. Select your state below to review zoning statutes, turnkey construction costs, and screened local ADU general contractors.

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Compare Local ADU & Casita Builders

Match with 3–4 licensed general contractors and prefab ADU builders. Compare site feasibility plans, zoning allowances, turnkey pricing, and rental yields.

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West Region

1 State Directories

California (CA) →

3 Cities

Zoning Statutes: SB 9, SB 13, AB 68, AB 881, and AB 1033 (Condo-ization of ADUs)

Avg Turnkey Detached Build $160,000 – $320,000
Max Allowable Size Up to 1,200 sq. ft. for detached ADUs
Top Metro Hubs:
Los Angeles San Diego Sacramento
View Complete California ADU Guide & Quotes →

Northwest Region

1 State Directories

Washington (WA) →

1 Cities

Zoning Statutes: HB 1110 (Middle Housing) & HB 1337 (Statewide ADU Legalization)

Avg Turnkey Detached Build $170,000 – $330,000
Max Allowable Size Up to 1,000 sq. ft.
Top Metro Hubs:
Seattle
View Complete Washington ADU Guide & Quotes →

Southeast Region

1 State Directories

Florida (FL) →

3 Cities

Zoning Statutes: Florida Live Local Act (SB 102) & Municipal ADU Infill Ordinances

Avg Turnkey Detached Build $135,000 – $275,000
Max Allowable Size Up to 750–1,000 sq. ft. depending on local city development codes
Top Metro Hubs:
St. Petersburg Miami Orlando
View Complete Florida ADU Guide & Quotes →

Southwest Region

2 State Directories

Texas (TX) →

3 Cities

Zoning Statutes: Austin HOME Initiative (Phase 1 & 2), Houston Chapter 26, Dallas Forward

Avg Turnkey Detached Build $125,000 – $260,000
Max Allowable Size Up to 850–1,100 sq. ft. depending on municipality and lot size
Top Metro Hubs:
Austin Houston Dallas
View Complete Texas ADU Guide & Quotes →

Arizona (AZ) →

2 Cities

Zoning Statutes: Phoenix ADU Ordinance (Passed Sept 2023) & State HB 2720

Avg Turnkey Detached Build $130,000 – $260,000
Max Allowable Size Up to 1,000 sq. ft. or 75% of main dwelling size
Top Metro Hubs:
Phoenix Tucson
View Complete Arizona ADU Guide & Quotes →