Cost of accessory dwelling unit

Looking for cost of accessory dwelling unit in Kansas City, MO? Call AccessoryDwellingUnit Direct for a contact a provider — no obligation. Licensed adu builders serve Kansas City 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 variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.

About this service

Building an ADU involves several variables that shift your final total, such as the size of the unit, whether you choose a detached structure or a garage conversion, and the complexity of your site’s plumbing and electrical needs. We help you navigate these choices to keep your project on track. Exact pricing confirmed free on the call.

Frequently asked in Kansas City

What are the disadvantages of ADUs?

Potential drawbacks include the upfront construction costs and the impact on your yard space. You might also face permitting hurdles or increased utility bills. However, for many Kansas City homeowners, the added rental income and property value make these concerns manageable.

How much does an ADU cost in Missouri?

What are the rules for ADUs in Missouri?

Is ADU allowed in Maryland?

This question references Maryland, but we are focused on Kansas City, Missouri. ADUs are generally allowed in Kansas City, Missouri, provided they meet specific zoning and building code requirements. Consulting with local experts ensures compliance.

What are the rules for ADU in California?

Our services are for Kansas City, Missouri, not California. California has enacted statewide ADU standards. For Kansas City, understanding local ordinances and working with professionals familiar with Missouri's building codes is crucial.

Also serving nearby: Kansas City · Independence · Lee S Summit · Overland Park · Olathe

All cities in Missouri →

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

Service area details

510,704residents

1,622per sq mile

8ZIP codes served

Serving all of Kansas City — population 510,704; about 1,622 residents per square mile across 314.7 sq mi. ZIP codes covered include 64101, 64102, 64105, 64106, 64108, 64109, 64110, 64111.

Neighborhoods served in Kansas City: Crossroads Arts District, West Plaza, Brookside, Downtown Kansas City, Waldo — and every surrounding area.