Accessory dwelling unit homes — 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
These are fully functional, independent homes located on the same lot as a primary residence. They include all essential facilities for sleeping, cooking, and sanitation. People choose these homes to create more living space for family members or to build a long-term investment property. Costs are driven by finishes, size, and site accessibility. Exact pricing confirmed free on the call.
Frequently asked in Richardson
What are accessory dwelling units (ADUs) and how do they apply to Richardson?
Who is an accessory dwelling unit contractor in Richardson?
What are detached accessory dwelling units in Richardson?
What local ADU resources are available in Richardson?
Where can I find an accessory dwelling unit near me in Richardson?
What is the accessory dwelling unit cost in Richardson?
Are there accessory dwelling unit grants available 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: Telecom Corridor, Heights of Richardson, Spring Valley, Mission Ridge, Breckinridge — and every surrounding area.
Areas we serve
Browse by state, then city.