Accessory dwelling unit construction cost — Garland, TX

Last updated: September 24, 2026

What affects the price

Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.

About this service

The cost to build an ADU varies based on whether you are converting an existing garage or building a new detached structure from the ground up. Factors like foundation work, utility extensions, high-end finishes, and site access all influence the final total. Exact pricing confirmed free on the call.

Frequently asked in Garland

Also serving nearby: Richardson · Dallas · Plano · Allen · Carrollton

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

Service area details

Serving all of Garland — population 243,470; about 4,282 residents per square mile across 56.9 sq mi. ZIP codes covered include 75040, 75041, 75042, 75043, 75044, 75045, 75046, 75047.

Neighborhoods served in Garland: Downtown Garland, Firewheel, North Garland, South Garland, Central Garland — and every surrounding area.