ADU Construction in Star, Idaho

We design and build custom accessory dwelling units that add valuable living space, multi-generational housing options, or rental income potential to your property — built to the same high standard as your primary home.

Your property has more potential than you're currently using.

Whether you're looking to house an aging parent, create a private space for a college-aged child, or generate rental income in one of the Treasure Valley's fastest-growing communities, an ADU could be the perfect solution — but getting one built feels complicated.

Zoning regulations, permit requirements, design considerations, and finding a contractor who actually understands ADU construction in Star, Idaho can make the whole idea feel more trouble than it's worth.

You don't want to invest in a structure that runs into regulatory problems halfway through or ends up poorly built and difficult
to rent or use. You need an ADU contractor who knows the local rules, designs smart, and builds right.

We Make ADU Construction

Straightforward

At ATP Construction LLC, we've navigated the ADU construction process in Star and Ada County extensively,
and we understand exactly what it takes to get your project approved, built, and ready to use.

From initial design and zoning review through permitting, construction, and final inspection, we manage every step
of your ADU project with the same full-service approach we bring to our larger construction projects.

We'll help you maximize the potential of your property — whether that means a detached backyard cottage, a garage conversion, or an attached in-law suite — and build it with the quality and craftsmanship that makes it a true asset to your property for decades to come.

In a market like Star, Idaho where housing demand continues to grow, a well-built ADU is one of the smartest investments you can make.

How It Works

Free Site Assessment & Consultation


We visit your property, assess your lot for ADU feasibility, review local zoning requirements, and discuss your goals — whether that's rental income, multi-generational living, or added flexibility. You'll get a clear plan and transparent estimate before anything moves forward.

We Handle Permits, Design, and Construction


We manage the entire process — from design drawings and permit applications through foundation, framing, mechanical systems, and all interior and exterior finishes — with professional oversight and consistent communication throughout.

A New Space That Works for Your Life


We complete your ADU with a full walkthrough, ensure everything meets code and your expectations, and hand you a finished structure that's ready to live in, rent out, or both.

Trusted ADU Construction Contractor Serving Star, Idaho

ADU construction is a specialized process that requires a contractor who understands both the technical construction requirements and the local regulatory landscape in Star and Ada County. At ATP Construction LLC, we bring both — along with the craftsmanship, project management, and honest communication that make a complex project feel manageable.

The Treasure Valley is one of the most dynamic real estate markets in the country right now, and a properly built ADU on your Star, Idaho property is an investment that pays dividends for years — in rental income, property value, or simply the flexibility to house the people you love.

Don't navigate the ADU process alone or trust it to a contractor who's figuring it out as they go. Choose ATP Construction LLC and build your ADU the right way from day one.

Frequently Asked Questions

  • What is an ADU and what types does ATP Construction LLC build?

    An ADU — accessory dwelling unit — is a secondary living space on a residential property. We build detached backyard cottages, attached in-law suites, garage conversions, and basement ADUs throughout Star and the Treasure Valley.

  • How long does it take to build an ADU?

    Most ADU projects take between 4 to 8 months from initial permitting through construction completion. Timelines vary based on the type of ADU and complexity of the build. We provide a clear schedule before work begins.

  • Can I rent out my ADU in Star, Idaho?

    Yes. ADUs in Star, Idaho can be rented out as long-term rentals, subject to local regulations. In a growing Treasure Valley market, a well-built ADU can generate significant rental income and increase your property's overall value.