Accessory dwelling unit cost — McAllen, TX
Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
Total costs are influenced by the complexity of your site, the square footage of the unit, and the specific utility upgrades needed to support a new home. Choosing between a prefab unit and a custom build also changes your bottom line. We provide exact pricing confirmed free on the call.
Frequently asked in McAllen
What are the best ADU options for McAllen homeowners?
What's the process for ADU construction in McAllen?
Are prefabricated ADUs a good idea in McAllen?
Prefabricated ADUs can offer a quicker construction timeline in McAllen. They are built in sections off-site, which can streamline the process. It's important to ensure the unit meets all local building codes and McAllen's specific requirements. Call us to discuss if a prefabricated ADU is right for you.
What does it cost to build an ADU in Massachusetts?
What about emergency ADU services in McAllen?
What are the best ADU services in McAllen?
What are homes with in-law suites like in McAllen?
Homes with in-law suites in McAllen are typically single-family residences with a separate, self-contained living unit. These suites offer privacy and independence for residents. They can be attached or detached additions to the main house. They are a popular ADU option. Call us to discuss building an in-law suite.
Also serving nearby: Edinburg · Mesquite · Brownsville · Laredo · Corpus Christi
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of McAllen — population 146,593; about 2,351 residents per square mile across 62.3 sq mi. ZIP codes covered include 78501, 78502, 78503, 78504, 78505.
Neighborhoods served in McAllen: Larkspur, Pecan Creek, Sharyland, North McAllen, Bentsen Palm Village, Dixie Acres — and every surrounding area.
Areas we serve
Browse by state, then city.