Backyard accessory dwelling unit — Richardson, 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 Richardson
What's the biggest mistake people make about ADU company services in Richardson?
What are the accessory dwelling unit permit costs in Richardson?
What is the accessory dwelling unit cost in Richardson?
What accessory dwelling unit services are offered in Richardson?
What are accessory dwelling units (ADUs) in Richardson?
What financing options are available for accessory dwelling units in Richardson?
What is the cost to build an accessory dwelling unit in Richardson?
Also serving nearby: Plano · Garland · Allen · Carrollton · Dallas
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Richardson — population 117,435; about 4,111 residents per square mile across 28.6 sq mi. ZIP codes covered include 75080, 75081, 75082, 75083, 75085.
Neighborhoods served in Richardson: Heights of Richardson, Spring Valley, Galatyn Park, Northrich, Breckinridge — and every surrounding area.
Areas we serve
Browse by state, then city.