Detached ADU Build
Representative remodeling design inspiration, tailored to your home during design.
Looking for adu / guest house in Boise, Idaho? Homes near North End and across Boise often need layouts that meet the applicable local building requirements and inspection schedules. Boise Remodeling Co offers design-build adu / guest house with clear written scope, proactive weekly updates, and a written workmanship guarantee. Schedule a free in-home consultation or use our project estimator for a planning range.
ADU / Guest House
ADU / Guest House in Boise, Idaho
Looking for adu / guest house in Boise, Idaho? Homes near North End and across Boise often need layouts that meet the applicable local building requirements and inspection schedules. Boise Remodeling Co offers design-build adu / guest house with clear written scope, proactive weekly updates, and a written workmanship guarantee. Schedule a free in-home consultation or use our project estimator for a planning range.
Planning from$165kYour exact range is confirmed at the free in-home visit
A CLEAR SCOPE
Plan the details.
Know the next step.
- 01Site feasibility evaluation and setback review
- 02Foundation, framing, and structural engineering
- 03Plumbing, electrical, and HVAC for a fully self-contained unit
- 04Kitchen and bath fit-out with finish selections guidance
- 05Permit coordination and final inspection through certificate of occupancy
Why choose us
Why homeowners choose us
- 01
Single team from design through certificate of occupancy
no coordinating separate trades
- 02
Ada and Canyon County
ADU permitting and setback requirements handled in-house
- 03
Rental-ready finish packages designed
for durability and appeal
- 04
Exterior materials and rooflines
planned to complement your existing home
How it works
Our process, step by step
01
Site visit and feasibility
We review your lot, setbacks, utility access, and HOA rules to confirm the ADU approach that works best.
02
Design and engineering
Plans are drawn to meet code, match your property, and maximize livability within your investment target.
03
Permitting and construction
We file permits and manage every trade from foundation through finish with weekly written updates.
04
Inspections and closeout
Final inspections are coordinated and we walk through every detail before handoff.
Planning details
Typical timeline
Most ADU projects run 4 to 7 months from design through certificate of occupancy, depending on unit size, site conditions, and permit timelines.
Local details
Local notes
For adu / guest house in Boise, confirm the property jurisdiction and scope before applying. City addresses and unincorporated county parcels may use different building departments. Confirm required building and trade permits, inspections and review times for the actual address.
ADU / Guest House cost in Boise
Planning ranges for Boise match the broader Treasure Valley market. As of 2026, garage conversions in the Boise area typically plan $90,000 to $180,000. Attached ADUs and basement conversions plan $120,000 to $250,000, and detached new-build ADUs plan $180,000 to $300,000 or more depending on size, utility connections, and finish level.
These are planning ranges, not bids. Site conditions and utility strategy drive ADU budgets more than any other project type, which is why feasibility review comes first in our process.
ADU / Guest House across Boise neighborhoods
We design and build adu / guest house projects throughout Boise, including North End, Bench, Downtown, East End, Southwest Boise. Housing stock varies between these neighborhoods, so we tailor layouts, structural details, and finish selections to the age and style of your specific Boise home.
As a local team familiar with Boise landmarks like Idaho State Capitol, Boise River Greenbelt, Table Rock, we understand the character of the area and plan adu / guest house work that fits the neighborhood and protects resale value.
ADU / Guest House permits and planning in Ada County
ADU / Guest House projects in Boise that change layout, structure, plumbing, or electrical require permits through Ada County. We build plan review and inspection timelines into your schedule from day one and handle submissions, fees, and inspections as part of the design-build contract.
Our Boise adu / guest house designs also account for the local semi-arid climate with four distinct seasons - from insulation and ventilation choices to materials that hold up to Treasure Valley freeze-thaw cycles.
Design inspiration
Remodeling possibilities
Planning your budget
What might your project cost?
Get a preliminary planning range based on real Treasure Valley remodel costs, with no obligation.
Get an estimateFree · Not a binding quote
- 01Based on real Treasure Valley project costs
- 02Project details reviewed by our team
- 03Additional details or a site visit may be needed
Common questions
Frequently asked questions
Same service, nearby cities
Start your project
Ready to begin?
Free 60 to 90 minute in-home visit.
Planning guidance, design direction, no obligation.