Detached accessory dwelling unit — Dallas, TX | AccessoryDwellingUnit Services

Looking for detached accessory dwelling unit in Dallas, TX? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Dallas and the surrounding area, and you'll get straight answers on timing and what affects the price.

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

A detached ADU is a standalone building separate from your main house, like a cottage or a converted garage. You choose this style if you want maximum privacy for your tenants or family members. Because it requires its own foundation and utility lines, it is a significant construction project. Exact pricing confirmed free on the call.

Frequently asked in Dallas

How can I find an affordable accessory dwelling unit in Dallas?

What's the best accessory dwelling unit for a Dallas backyard?

The 'best' ADU for your Dallas backyard really depends on your specific needs and lot size. A detached unit offers more privacy and flexibility. The pros can assess your space and suggest designs. This could range from a cozy studio to a larger one-bedroom. Call us to discuss what works best for your property.

How much does it typically cost to build an ADU in Dallas?

Are there good ADU builders near Dallas?

What makes an ADU in Dallas 'local'?

A 'local' ADU in Dallas means it's built by professionals familiar with Texas regulations and Dallas zoning. They understand the climate and common architectural styles. This ensures your ADU is compliant and fits well with surrounding homes. Calling us puts you in touch with these experienced local teams.

How do I get an ADU estimate in Dallas?

What are the best accessory dwelling unit homes in Dallas?

Also serving nearby: Garland · Irving · Richardson · Carrollton · Grand Prairie

All cities in Texas →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

1,302,868residents

3,835per sq mile

8ZIP codes served

Serving all of Dallas — population 1,302,868; about 3,835 residents per square mile across 339.7 sq mi. ZIP codes covered include 75201, 75202, 75203, 75204, 75205, 75206, 75207, 75208.

Neighborhoods served in Dallas: Deep Ellum, Uptown, Bishop Arts District, Oak Lawn, Knox-Henderson, Downtown Dallas — and every surrounding area.