Cost to build accessory dwelling unit — Aurora, CO
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
Building an ADU involves costs for permits, site prep, foundation, framing, plumbing, and electrical work. Prices fluctuate based on whether you choose a custom design or a pre-planned layout, as well as the complexity of connecting to existing city utilities. Exact pricing confirmed free on the call.
Frequently asked in Aurora
What is an accessory dwelling unit in Aurora?
How do I find the best ADU services in Aurora?
What are the permit requirements for an ADU in Aurora?
Can I get an ADU quote in Aurora?
What are the costs associated with building an ADU in Aurora?
Are there grants available for ADU construction in Aurora?
What is modular ADU construction in Aurora?
Also serving nearby: Denver · Centennial · Thornton · Lakewood · Westminster
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Aurora — population 395,052; about 2,423 residents per square mile across 163.0 sq mi. ZIP codes covered include 80010, 80011, 80012, 80013, 80014, 80015, 80016, 80017.
Neighborhoods served in Aurora: Southlands, Mission Viejo, Hampden, Cherry Creek, Seven Hills — and every surrounding area.
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