Affordable accessory dwelling unit

Looking for affordable accessory dwelling unit in Des Moines, IA? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Des Moines and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

Affordability in backyard homes often comes down to choosing efficient designs and standardized layouts that minimize construction waste. By focusing on smart floor plans and avoiding unnecessary structural complexity, you can keep your project budget manageable. We help you identify cost-effective materials and design choices that stay within your financial comfort zone while maintaining quality. Building simply doesn't have to mean building poorly. Exact pricing confirmed free on the call.

Frequently asked in Des Moines

What are the disadvantages of ADUs in Des Moines?

Potential disadvantages of ADUs in Des Moines might include initial construction costs and the need to consider parking and privacy for both the main house and the ADU. You'll also want to think about how it might affect your yard. Weighing these against the benefits is important.

How much does an ADU cost in Iowa?

What are the rules for ADUs in Iowa?

While Iowa has a general framework for ADUs, specific regulations are often determined at the local level. Des Moines has its own ordinances regarding setbacks, lot coverage, and permitting. Understanding these local rules is key, and we can help you connect with pros who know them.

Is ADU allowed in Maryland?

This information pertains to Iowa. Regulations for accessory dwelling units differ greatly between states and even municipalities. If you are inquiring about Maryland, you will need to research the specific laws and zoning ordinances applicable to that state and its cities.

Iowa does not have a comparable statewide grant program. However, there may be local financing options or incentives in Des Moines that a specialist can help you investigate for your ADU project.

How much does an ADU cost in Des Moines?

Also serving nearby: Cedar Rapids · Omaha · Davenport · Lincoln · Independence

All cities in Iowa →

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

Service area details

210,381residents

2,386per sq mile

8ZIP codes served

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: Downtown Des Moines, West Des Moines, Waterfront, Sherman Hill, Drake Neighborhood — and every surrounding area.