Backyard accessory dwelling unit — Lewisville, TX
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
This is a detached unit built on your property, separate from your main home. It is a practical solution if you have extra yard space and want to add living quarters for family, guests, or tenants. These structures offer privacy while keeping you close to your primary residence.
Frequently asked in Lewisville
What are the best ADU designs for Lewisville properties?
What does 'accessory dwelling unit' mean in Lewisville?
What are the considerations for an emergency ADU in Lewisville?
How does an ADU rental work in Lewisville?
Can I find local ADU services in Lewisville?
What's involved in getting an ADU quote in Lewisville?
What are the different types of ADU construction 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, Lakewood Village, Stone Creek, Vista Ridge, Canyon Creek — and every surrounding area.
Areas we serve
Browse by state, then city.