ADU FAQ for KC Homeowners: Top 10 Questions Answered
Considering an accessory dwelling unit (ADU) for your Kansas City property? We’ve put together the top 10 FAQs that local homeowners ask about cost, permits, design, and rental potential.

How much does an ADU cost in Kansas City?
In Kansas City, ADU costs typically range from $100,000 to $300,000 or more, depending on design complexity, size, and finish quality. Factors like foundation work, plumbing, and custom features may affect the final price. We offer free on‑site evaluations to provide an accurate local estimate.
Do I need a permit to build an ADU in KC?
Yes, building an ADU usually requires permits, as it alters your property’s use and may involve structural changes. Requirements vary by jurisdiction within the KC area, so we handle the necessary paperwork and ensure compliance with local building codes.
How long does it take to build an ADU in Kansas City?
Timelines generally range from 6 to 12 months, depending on project scope, weather conditions, and permit turnaround times. A straightforward build might be on the shorter side, while custom or larger designs will take longer. Once the design is finalized, we provide a detailed project schedule.
What financing options are available for building an ADU in KC?
Many homeowners explore options such as home equity loans, renovation financing, or specialized construction loans. Our team can help connect you with local financing partners who understand the KC market and can tailor solutions to your project size and budget.
Can an ADU add value to my Kansas City property?
Yes—an ADU can boost your property’s value by creating additional living space and potential rental income. In competitive Kansas City neighborhoods, a well-built ADU is an attractive feature that can increase resale value and overall appeal.
What is the difference between an ADU and a granny flat?
While both terms refer to secondary living spaces on a single property, an ADU typically encompasses a purpose-built or converted structure that meets full building codes. In contrast, a granny flat might be a simpler or partially detached dwelling. The distinction can affect design, permitting, and financing considerations.
Are there design options for ADUs that match historic homes in KC?
Absolutely. We offer customizable designs that can complement the style of historic or traditional Kansas City homes. From exterior finishes to rooflines and window details, we ensure your ADU blends seamlessly with the character of your neighborhood.
How energy efficient are ADUs in Kansas City?
Modern ADU designs incorporate energy-efficient windows, insulation, and HVAC systems to handle KC’s varied climate. Energy-efficient features reduce operating costs and can be an attractive selling point to eco-conscious buyers.
What is the typical size of an ADU in KC?
Sizes vary widely, but many KC ADUs range from 400 to 1,200 square feet. The optimal size depends on your lot, design goals, and local zoning regulations. We work with you to maximize your space while following local standards.
Can I rent out an ADU for extra income in Kansas City?
Yes, one of the significant benefits of an ADU is its rental potential. Many Kansas City homeowners rent out their ADU to generate additional income, and local market trends suggest strong demand in well-located neighborhoods. We can advise on design features that optimize rental appeal.
