Accessory dwelling unit construction cost — 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
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 Aurora
What are the advantages of building an accessory dwelling unit in Aurora?
How much does it typically cost to build an accessory dwelling unit in Aurora?
What are the requirements for building an ADU in Aurora, Colorado?
What is the difference between an ADU and a mother-in-law suite?
How long does the process of building an ADU take in Aurora?
Are there prefab or modular ADU options available 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, Stapleton, Aurora Highlands, Village East, Aurora Knolls — and every surrounding area.
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