Boise's Premier DADU contractor
Built right. from the ground up.
DADU SERVICES IN BOISE, Idaho
Design | Permitting | Construction | Turn-Key
We've been designing and building homes in the Pacific Northwest for over 40 years. Licensed, bonded, and fully committed to you — we are Boise's full-service DADU general contractor, handling everything from design and permitting to the final walkthrough. One team, one contract, start to finish.
Our services in Boise
Find the Right Model for Your Lot
Every model is fully permitted, move-in ready, and built to last.
McKinley
448 sq. ft.
Our most compact model. Perfect for maximizing a smaller lot or keeping construction costs down without sacrificing quality. A fully independent living space with everything you need.
Rainier
770 sq. ft.
Mid-size A step up in space with the same quality build. Popular with homeowners looking to balance construction cost with livability — works well for long-term rentals and multigenerational living.
St. Helens
900 sq. ft.
Mid-large More room to work with. The St. Helens gives you the flexibility to add thoughtful design touches and finishes that make the space feel like a true home rather than an accessory unit.
Baker
480 sq. ft.
Up to 1,000 sq ft Our largest model and our most capable build. Maximum square footage, maximum rental income potential, and the most flexibility on layout, finishes, and design customization.
Boise DADU
Quality & Experience You Can Trust
From first conversation to move-in day, we bring 40+ years of construction expertise to every Boise DADU project.
Investment Opportunity
A DADU is one of the smartest things you can do with a property you already own. Add rental income, increase your home's value, and build long-term equity — all on your existing lot.
Design Experts
We've been designing and building homes — large and small — for over 40 years. Our team works with you from the very first sketch to make sure the design fits your lot, your lifestyle, and your goals.
One-Stop-Shop
Design, permits, utility coordination, construction, and inspections — all handled by one experienced team. You never have to chase down a contractor or wonder what's happening next.
Our work at a glance
What Homeowners Are Saying About Us
DADU Construction Across Boise, Meridian, Eagle, and Nampa
We build DADUs and ADUs throughout the Boise metro — from established North End and Bench neighborhoods to newer developments in Meridian and Eagle. Wherever your lot is in the Treasure Valley, our Boise DADU builders can assess it, permit it, and build it.
Proudly Serving
Boise
Nampa
Meridian
Eagle
North End
Bench
Harris Ranch
Ada County
Canyon County
Boise DADU & ADU FAQs
Answers to the most common questions Boise homeowners ask about the process of adding a DADU unit to their property.
Can I build a DADU on my lot in Boise?
Most single-family lots in Boise zoned R-1B, R-1C, or R-2 allow DADUs. The minimum lot size, setback requirements, and allowable square footage vary by zone. We do a free lot assessment to give you a definitive answer before any money changes hands.
How much does a DADU cost in Boise?
Boise construction costs are broadly comparable to the Tacoma market — our completed projects range from the low $200s for a 448 sq ft McKinley model to $350,000+ for a fully finished 1,000 sq ft build. Ada County permit fees and Idaho Power utility connection costs affect the final number.
What are the setback rules for a DADU in Boise?
City of Boise requires a minimum 3-foot side setback and 6-foot rear setback for DADUs in most residential zones, though these can vary. ACHD right-of-way along alleys may also limit buildable area. We verify your specific parcel before design begins.
How long does it take to build a DADU in Boise?
From consultation to certificate of occupancy, most Boise projects run 10–14 months. Boise Development Services has improved permit timelines, but Idaho Power utility coordination can add 2–4 months depending on your location and service capacity.
Does Tacoma DADU hold an Idaho contractor license?
Yes. We are licensed and bonded in Idaho. Our Idaho contractor registration number and Washington State license number are listed on our About page and in the footer of this site.
Get In touch
Request a Boise DADU quote today
Send us a message today. We'll review your info and be in touch to discuss opportunities for your Boise property!
Prefer to talk through it? Call us now at (208) 247-9452 and ask for a Boise DADU consultation.
No obligation, no pressure — we start with what’s actually buildable on your Boise lot. If you're not sure where to start and would like more info-- give us a call, we're happy to help.
Phone: (208) 247-9452
Email: [email protected]
Boise DADU specializes in permitted detached accessory dwelling units (DADUs) and ADUs across Boise, Meridian, Eagle, and the greater Treasure Valley.
Phone: (208) 247-9452
Email: [email protected]
Location:
Boise, ID 83702
Boise & Treasure Valley coverage
- Boise (North End, Bench, Harris Ranch, Southeast Boise)
- Meridian & Eagle
- Nampa & Caldwell
- Ada County & Canyon County
ID Contractor Reg #: [ID NUMBER HERE] | WA License #: [WA NUMBER HERE]