ADU Contractor in Hailey, Idaho
Twin Falls ADU Guys serves the Wood River Valley. Hailey homeowners get the same full-service ADU process as our Magic Valley clients — feasibility, design, permits, and build.
ADU Services in Hailey
Hailey is the population and commercial center of the Wood River Valley, ~85 miles north of Twin Falls on ID-75. Hailey has been one of the most ADU-active markets in the region for years — driven by limited land supply, high housing demand, and pronounced workforce housing needs. The City of Hailey Community Development Department actively administers ADU permits, and we work with their team on every project. Wood River Valley ADUs frequently rent for substantially more than Magic Valley equivalents, which dramatically shortens the ROI timeline on construction cost.
Permitting in Hailey
Hailey (population ~9,500) sits just under the 10,000 SB 1354 threshold, so the statewide mandate does not bind it — but Hailey has been one of the most ADU-active markets in the region for years, and its Community Development Department actively administers ADU permits under local code. Wood River Valley rents are among the highest in Idaho. Design review and historic district overlays may apply in some neighborhoods (notably Old Hailey). We confirm requirements and handle design review submissions during the Feasibility Check.
ADU Rules in Hailey
Local code governsHailey (population ~9,500) is just under the 10,000 SB 1354 threshold, so the statewide mandate does not bind it. However, the City of Hailey already permits ADUs under its own local zoning code and actively processes ADU permits — we verify the current requirements for your parcel.
- Zoning authority
- City of Hailey Community Development, 115 S Main St (208-788-9815).
- ADU size limit
- Confirmed during your free Feasibility Check.
- Setbacks
- Confirmed during your free Feasibility Check.
- Permits & fees
- Confirm permit + design-review fees with Community Development.
- Owner-occupancy
- Confirmed during your free Feasibility Check.
- Typical 1BR ADU rent
- $1,200-$2,000/month (Wood River Valley premium; estimate)
What an ADU Can Do for Hailey 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 ADU Law and Hailey
Hailey is under 10,000 population, so the Idaho SB 1354 ADU mandate does not bind it — whether you can build an ADU is governed by the local zoning code. That is exactly what our Feasibility Check verifies for your parcel. (Idaho HB 166 separately protects an internal ADU on an owner-occupied homestead from HOA bans.) Learn more about Idaho ADU law →
How We Build Your ADU in Hailey
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.
Plan Your ADU in Hailey
Whether you are just researching or ready to start, here is everything you need to know about building an ADU in Blaine County.
Cost in Hailey
ADU pricing for Blaine County — garage conversion vs detached vs prefab, with hidden costs explained.
Permits in Hailey
How we handle the full permit process — Zoning Use Permit, building permits, trade permits, inspections.
Financing Options
HELOC, construction loans, cash-out refinance, FHA — how Hailey homeowners pay for their ADU.
Idaho ADU Law
HB 166, HOA rules, the 45% size rule — what state and local law actually requires.
Also Serving Near Hailey
We serve all of Blaine County and surrounding communities. If you are near Hailey, we can help — contact us to confirm availability for your specific location.
Ready to Build an ADU in Hailey?
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.