Accessory Dwelling Unit (ADU) Construction in Missoula, MT

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At Nationwide Construction, we specialize in accessory dwelling units (ADUs) that enhance your living space, increase your property value and adapt to the needs we have around Missoula and elsewhere. Whether you’re looking for a second-floor addition over an existing structure, a new detached ADU guesthouse or a tiny home, our team provides quality consultation and craftsmanship throughout Western Montana. 

ADUs (Accessory Dwelling Units): In Montana, ADUs are becoming more flexible under state and local zoning rules, making them a viable option for homeowners wishing to provide rental income, multi-generational living or a guest suite.  www.steadily.com/blog/adu-laws-and-regulations-in-montana?

Building an ADU or addition can:

• Add living space for aging parents, adult children or extended family 
• Create a separate rental unit (generating income) 
• Increase your home’s resale value in the Missoula market 
• Adapt your property to future needs while keeping your current property

 At Nationwide Construction we provide:

• Whole-home additions: second or third-floor expansions, side or rear additions, bump-out rooms, full-scale remodels.
• Accessory Dwelling Units (ADUs): detached backyard cottages, garage conversions, in-law suites, or internal addition ADUs (within the main house) — all designed for Missoula area zoning and building constraints.
• Custom design & permitting: We understand local zoning rules in Western Montana and ensure your project meets current regulations. Some have more than others. For example, in Missoula the zoning allows detached, internal and internal-addition ADUs in most residential districts. Learn more here... Accessory Dwelling Unit (ADU) | Missoula, MT - Official Website 
• Energy-efficient construction: With Montana’s climate, proper insulation, windows and efficient HVAC matter. We build for comfort, efficacy and longevity.
• Turnkey service: From concept and architectural coordination through permitting, construction and finishing, we can confidently manage all phases.

• Local expertise: Based in Missoula and serving Western Montana, we understand local codes, weather conditions, and material options that stand up to the Montana climate. 
• Licensed, insured, and reputable: Nationwide Construction is fully licensed and insured, a proud member of the Missoula Chamber of Commerce and the Missoula Building Industry Association, and accredited by the Better Business Bureau (BBB) with an A rating.
• Transparent communication: We provide clear budgets, timelines, and project updates from your idea to final completion. 
• Quality craftsmanship: Every project is completed with precision, reliable materials, and experienced tradespeople.
• Tailored to your goals: Whether you’re adding a guest suite, rental ADU, man cave, she shed or family a room expansion, we customize your build to fit your vision and budget.

 We are proud to serve Missoula and Western Montana, including Missoula County, Ravalli County, Granite County, Powell County, Mineral County, Sanders County Lake County, Flathead County, the Bitterroot Valley and beyond. No matter where your property is in Western Montana, we bring the same quality service. 

 Are you ready to expand your home, build a separate dwelling unit, or create additional living possibilities on your property? Contact us at Nationwide Construction. We’ll set up a free consultation, review your property, explore options for home additions and provide an estimate tailored to your needs. 

Don’t settle for compromise when your home could be exactly what you need. With Nationwide Construction, you can add the space you want, with craftsmanship built for the Montana environment, and unlock more value in your home. Nationwide Construction - "Building Your Dreams Today". 

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