Accessory dwelling unit permit cost

Looking for accessory dwelling unit permit cost in Des Moines, IA? Call AccessoryDwellingUnit Solutions 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 budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

Permitting is a necessary step that varies significantly depending on your local city or county regulations. These fees often cover zoning reviews, impact assessments, and building inspections. Because every jurisdiction has different fee structures, these costs fluctuate based on where your property is located. We help you navigate these requirements during the planning phase to ensure everything is handled correctly. Exact pricing confirmed free on the call.

Frequently asked in Des Moines

What are the disadvantages of ADUs in Des Moines?

Potential disadvantages include increased utility costs and the need for sufficient off-street parking, which Des Moines ordinances address. There's also the consideration of how an ADU might impact your existing yard space and the overall aesthetic of your property. A professional consultation will cover these points.

How much does an ADU cost in Iowa?

What are the rules for ADUs in Iowa?

Iowa has state-level guidance on ADUs, but cities like Des Moines implement their own specific zoning and building regulations. These local rules often dictate setbacks, height limitations, and lot coverage. Working with experienced pros ensures your project meets all necessary city requirements.

Is an ADU allowed in Des Moines, Iowa?

Yes, Des Moines permits accessory dwelling units, provided they adhere to the city's established zoning and building codes. These regulations are designed to ensure ADUs integrate harmoniously with existing neighborhoods. The pros will guide you through the approval process.

What is the permit cost for an ADU in Des Moines?

Permit costs in Des Moines are generally based on the project's valuation and scope, covering plan review and inspections. These fees are essential for legal construction. A professional can provide an estimate that includes these necessary municipal expenses.

What about grants for ADUs in Iowa?

While specific grant programs for ADUs in Iowa are not widespread, it's always beneficial to inquire with local building professionals. They may be aware of any current city-specific incentives or programs that could apply to your Des Moines ADU project.

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, East Village, Drake Neighborhood, Sherman Hill, Waterfront — and every surrounding area.