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.
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.
An ADU's affordability in Des Moines often depends on its size, design complexity, and chosen materials. Opting for a simpler, smaller design can significantly reduce costs. Utilizing existing structures or foundations can also make an ADU more affordable. Discussing these options with a licensed, insured pro can help you find cost-effective solutions. We can get you that discussion.
In Des Moines, an accessory dwelling unit (ADU) is a secondary housing unit on a single-family residential lot. It can be attached to the main house or detached. ADUs provide independent living quarters for family members, renters, or guests. Understanding this definition is the first step to planning your ADU project. We can help you find pros to discuss it.
Also serving nearby: Cedar Rapids · Omaha · Davenport · Lincoln · Independence
More on this: HUD ADU resources — ADU policy and financing research.
Serving all of Des Moines — population 210,381; about 2,386 residents per square mile across 88.2 sq mi. ZIP codes covered include 50301, 50302, 50303, 50304, 50305, 50306, 50307, 50308.
Neighborhoods served in Des Moines: Drake Neighborhood, Sherman Hill, Downtown Des Moines, Beaverdale, Waterfront — and every surrounding area.
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