Kansas City's Trusted ADU Contractors







Kansas City's Trusted ADU Contractors
Build an Accessory Dwelling Unit for rental income, multi-generational living, or home office space. From garage conversions to detached ADUs, we handle permits, design, and construction. 15+ years of Kansas City expertise.







Trusted & Certified
Licensed, insured, and backed by industry-leading certifications


















ADU Construction Services in Kansas City
As Kansas City's experienced ADU contractors, we build in-law suites and accessory dwelling units that provide rental income, multi-generational living, or additional space for your family.
Garage ADU Conversion
Transform your attached or detached garage into a complete accessory dwelling unit with bedroom, bath, and kitchenette.
- Full Bathroom
- Kitchenette
- HVAC Installation
- Insulation & Drywall
Attached ADU Addition
Build a new ADU attached to your existing home. Maximizes lot space while providing independent living quarters.
- Private Entrance
- Full Kitchen
- Code Compliant
- Utility Connections
Detached ADU Construction
New construction detached ADU on your property. Complete independence with maximum privacy for occupants.
- New Foundation
- Separate Utilities
- Custom Design
- Full Independence
ADU Kitchens
Complete kitchen installations for ADUs including efficient layouts, appliances, and storage for smaller spaces.
- Space-Efficient Design
- Full Appliances
- Smart Storage
- Counter Space
ADU Bathrooms
Full or compact bathrooms designed for ADU living. Efficient layouts that maximize comfort in smaller footprints.
- Walk-In Showers
- Space Optimization
- Quality Fixtures
- Accessibility Options
ADU Permits & Planning
Navigate Kansas City ADU regulations with expert guidance. We handle all permits, zoning, and code compliance.
- Zoning Review
- Permit Applications
- Code Compliance
- Inspection Management
Garage ADU Conversion
Transform your attached or detached garage into a complete accessory dwelling unit with bedroom, bath, and kitchenette.
- Full Bathroom
- Kitchenette
- HVAC Installation
- Insulation & Drywall
Attached ADU Addition
Build a new ADU attached to your existing home. Maximizes lot space while providing independent living quarters.
- Private Entrance
- Full Kitchen
- Code Compliant
- Utility Connections
Detached ADU Construction
New construction detached ADU on your property. Complete independence with maximum privacy for occupants.
- New Foundation
- Separate Utilities
- Custom Design
- Full Independence
ADU Kitchens
Complete kitchen installations for ADUs including efficient layouts, appliances, and storage for smaller spaces.
- Space-Efficient Design
- Full Appliances
- Smart Storage
- Counter Space
ADU Bathrooms
Full or compact bathrooms designed for ADU living. Efficient layouts that maximize comfort in smaller footprints.
- Walk-In Showers
- Space Optimization
- Quality Fixtures
- Accessibility Options
ADU Permits & Planning
Navigate Kansas City ADU regulations with expert guidance. We handle all permits, zoning, and code compliance.
- Zoning Review
- Permit Applications
- Code Compliance
- Inspection Management
Why Kansas City Homeowners Are Building ADUs
Accessory Dwelling Units have become one of the smartest investments for Kansas City homeowners. Whether you want rental income to offset your mortgage, need a place for aging parents to live independently nearby, or want a dedicated home office separate from your main house, an ADU delivers.
"ADUs are changing how families use their property. I've built ADUs for parents who want their elderly mother close but independent, for young couples who use rental income to afford their first home, and for remote workers who need a real separation between work and home. Every ADU project is different, but they all add tremendous value."
As experienced Kansas City ADU contractors, we understand the local regulations, building requirements, and design considerations that make ADU projects successful. We've built in-law suites and ADUs throughout the metro area and can guide you through the entire process.
Types of ADUs We Build
Garage conversions are often the most cost-effective ADU option. We transform attached or detached garages into complete living units with bedrooms, bathrooms, kitchenettes, and HVAC. Your existing structure becomes a valuable asset.
Attached ADUs add onto your existing home but maintain complete independence with separate entrances. This option works well when lot constraints prevent detached construction and you want to maximize your property's footprint.
Detached ADUs are standalone structures built separately from your main home. These provide maximum privacy for both the homeowner and ADU occupant, making them ideal for rental units or situations where independence is paramount.

Modern ADU living space with full amenities and natural light
ADU Investment & Rental Income Potential
Kansas City ADUs generate strong rental income. A well-designed ADU can rent for $800-$1,500 monthly depending on size, location, and amenities. This income can significantly offset your mortgage, fund retirement, or provide financial flexibility.
Beyond rental income, ADUs add substantial property value. Most homeowners see 60-80% return on their ADU investment through increased home value. Properties with income-generating ADUs are increasingly attractive to buyers.
We design ADUs with rental appeal in mind - private entrances, efficient layouts, quality finishes, and proper sound separation from the main home. Whether you plan to rent immediately or in the future, your ADU will be market-ready.
Frequently Asked Questions
Ready to Build Your ADU?
Let's discuss your ADU project and explore the possibilities for your property.
Why Kansas City Homeowners Trust Coulston Construction
Permit Experts
We navigate ADU zoning and permit requirements across Kansas City metro
Full Service
Design, permits, construction, and finishing all under one roof
Quality Built
ADUs built to the same standards as primary homes - built to last
ROI Focused
Design decisions that maximize rental potential and property value
What Kansas City Homeowners Say About Our ADU Projects
Read real reviews from satisfied customers who built ADUs with Coulston Construction. Every project showcases our commitment to quality and attention to detail.
Richard & Nancy Palmer
Overland Park, KS
"We converted our detached garage into an ADU for rental income. Bob handled the permits, which were complicated, and delivered a beautiful unit. We now get $1,200/month rent that covers most of our mortgage. Best investment we've made!"
Teresa Nguyen
Lee's Summit, MO
"Built an attached ADU so my mother could live independently but close by. Coulston Construction designed it perfectly - separate entrance, full kitchen, accessible bathroom. Mom loves her space and I have peace of mind. Highly recommend!"
Mark & Jennifer Adams
Prairie Village, KS
"We built a detached ADU in our backyard for our college-age son. The process was smooth from design through permitting to construction. Now that he's moved out, we rent it and the income is fantastic. Bob's team did amazing work."
Join Our Happy ADU Customers
We respond to consultation requests within 24 hours. Discover how an ADU can add value and income to your property!
Areas We Serve
Proudly serving the Kansas City metropolitan area with professional construction and remodeling services. No project too big or small!
Don't See Your City?
We serve the entire Kansas City metropolitan area and surrounding communities. If you don't see your city listed, give us a call - we likely serve your area!
🏛️Missouri
🌾Kansas
Ready to Transform Your Home?
We respond to estimate requests within 24 hours, and our estimates are also completely free!