ADU Contractor in Twin Falls, Idaho
Twin Falls ADU Guys is your local ADU expert — based in Twin Falls, fully versed in the City Uniform Development Code, and ready to guide you from idea to move-in.
ADU Services in Twin Falls
If you own a home in Twin Falls and want to build an ADU, you're in the right place. We are based here, we know the Twin Falls Building Department and Planning and Zoning office, and we've built the relationships that make projects move faster. We know Title 10 of the Twin Falls Uniform Development Code inside and out — the 45% size rule, setback requirements by district (R-2, TN-1, TN-2, TN-3, RR), the utility sharing requirement, and the Zoning Use Permit application process.
Permitting in Twin Falls
Twin Falls follows Title 10, Section 10-6-10-B of the Uniform Development Code. ADUs are permitted on any legal lot with a single household dwelling. The 45% rule limits ADU size to 45% of the principal residence's living space. Zoning Use Permit required ($250 fee).
What an ADU Can Do for Twin Falls Homeowners
ADU Types We Build
- ✓Detached new build ADU
- ✓Garage conversion ADU
- ✓Attached ADU addition
- ✓Pre-fabricated ADU installation
- ✓Basement conversion (where applicable)
Full-Service Includes
- ✓Feasibility assessment + site visit
- ✓Custom ADU design
- ✓All permit applications and coordination
- ✓General contracting + all trades
- ✓Final inspection + Certificate of Occupancy
Idaho HB166 Protects Your Right to Build
Idaho House Bill 166 prohibits any city or county from imposing an outright ban on accessory dwelling units. That means Twin Falls must have a permit process for ADUs — and as of July 2023, your HOA cannot block you either (on owner-occupied properties). Learn more about Idaho ADU law →
How We Build Your ADU in Twin Falls
The same proven 4-step process we use across the Magic Valley
Free Readiness Call
10-15 minutes. We learn about your property and goals, and confirm whether a Feasibility Check makes sense.
Feasibility Check ($250-$750)
On-site visit, measurements, zoning verification with your local planning department, utility assessment, and a complete report with budget range.
Design + Permits
We design your ADU to code and handle every permit application with your city and county building department.
Construction
Our licensed team handles all trades — framing, plumbing, electrical, HVAC, and finishes. One team, start to finish.
Ready to Build an ADU in Twin Falls?
Start with a free 10-15 minute Readiness Call. We'll assess your property, walk through the local permit process, and tell you exactly what's possible.