Accessory dwelling unit companies — Frisco, TX

Last updated: September 24, 2026

What affects the price

Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

About this service

Frequently asked in Frisco

Also serving nearby: Plano · Allen · Mckinney · Lewisville · Carrollton

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

Service area details

Serving all of Frisco — population 225,007; about 3,280 residents per square mile across 68.6 sq mi. ZIP codes covered include 75033, 75034, 75035, 75036.

Neighborhoods served in Frisco: The Star District, Shops at Legacy, Frisco Lakes, Preston Vineyards, Stonebriar — and every surrounding area.