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
ADUs are secondary homes on a single-family lot that provide independent living facilities. You might consider an ADU if you want to increase your property value or provide housing for family. These units are versatile and can be detached or attached to the main house. Exact pricing confirmed free on the call.
Frequently asked in Lewisville
Are there any 24-hour ADU services available in Lewisville?
What accessory dwelling unit grants are available in Lewisville, TX?
How do I find ADU services near me in Lewisville?
What if I need emergency ADU services in Lewisville?
What's the process for getting an ADU permit in Lewisville?
What ADU services are offered by professionals in Lewisville?
Where can I find an ADU near me in Lewisville?
Also serving nearby: Carrollton · Frisco · Plano · Irving · Denton
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Lewisville — population 133,553; about 3,284 residents per square mile across 40.7 sq mi. ZIP codes covered include 75029, 75057, 75067, 75077.
Neighborhoods served in Lewisville: Old Town Lewisville, Lakewood Village, Castle Hills, Rosemary Square, Vista Ridge — and every surrounding area.
Areas we serve
Browse by state, then city.
