ADUs & Guest Houses in Nampa
ADU builders in Boise plan accessory dwellings and guest houses on the lot you already own. Boise Construction Co handles feasibility, design, permits, and construction for detached or attached units, and Boise ADU Co projects currently run through Boise Construction Co while that brand site is coming.
Services
ADU Builder in Boise, Idaho
ADU builders in Boise plan accessory dwellings and guest houses on the lot you already own. Boise Construction Co handles feasibility, design, permits, and construction for detached or attached units, and Boise ADU Co projects currently run through Boise Construction Co while that brand site is coming.
Planning fromPriced after a site reviewYour exact range is confirmed at the free in-home visit
A CLEAR SCOPE
Plan the details.
Know the next step.
- 01Property and setback review for an accessory dwelling
- 02Layout planning for family, guests, or independent living
- 03Permit-ready drawings and local permit coordination
- 04Utility connection planning called out as separate lines
- 05Construction, inspections, and a written workmanship warranty
Cost and timeline
Planning an ADU in the Treasure Valley
Typical timeline
Timeline depends on the unit size, whether it is attached or detached, utility extensions, and plan review. Many ADUs land inside a shorter window than a full custom home; we set a project-specific schedule after the site review.
An ADU is priced from the property up: setbacks, utilities, access, and whether the unit is attached or detached shape the scope more than a generic square-foot figure.
Request a quote and we reply within one business day. A site review comes before a detailed proposal, so the first number you see is grounded in your lot.
Why choose us
Why homeowners choose us
- 01
Feasibility before design, so setbacks and utilities shape the plan
- 02
One accountable team from drawings through the final walkthrough
- 03
Line-item budget with written allowances before construction
- 04
Boise ADU Co projects currently run through Boise Construction Co
How it works
Our process, step by step
01
Talk about the property
Share the address, intended use, and what you know about access, utilities, and the existing home.
02
Review feasibility
Confirm setbacks, utilities, parking, and jurisdiction rules before anyone draws a floor plan.
03
Design and budget
Develop the layout, selections, and a line-item budget with written allowances.
04
Permits and build
Coordinate approvals and construction, with written progress updates through handover.
ADUs & Guest Houses across the Treasure Valley
We provide adus & guest houses services throughout the Treasure Valley, with dedicated local pages for each city we serve. Lot availability, permit paths, impact fees, and HOA design review differ between Ada and Canyon County communities, so each city page covers the details that matter where you plan to build.
Choose your city below to see local adus & guest houses guidance, or schedule a free planning consultation to discuss your build directly.
- ADUs & Guest Houses in Boise
- ADUs & Guest Houses in Meridian
- ADUs & Guest Houses in Eagle
- ADUs & Guest Houses in Nampa
- ADUs & Guest Houses in Kuna
- ADUs & Guest Houses in Star
- ADUs & Guest Houses in Middleton
- ADUs & Guest Houses in Caldwell
- ADUs & Guest Houses in Garden City
Why design-build for your adus & guest houses
As a design-build home builder, we bring architectural design, engineering, estimating, permitting, and construction under one contract and one accountable team. That removes the handoffs and finger-pointing that happen when the architect, the plan reviewer, and the general contractor all answer to someone different - and it keeps your adus & guest houses on a single, coordinated schedule.
You get a line-item budget with written allowances before we break ground and a published draw schedule through the build.
Common questions
Frequently asked questions
Boise Construction Co builds ADUs and guest houses across the Treasure Valley. Boise ADU Co projects currently run through Boise Construction Co while the ADU brand site is coming.
No. Feasibility depends on setbacks, lot coverage, utilities, access, and local rules. A site review answers those questions before design starts.
Cost depends on size, attached or detached configuration, utility extensions, and finishes. We price after a site review rather than quoting a square-foot number without seeing the lot. Request a quote and we reply within one business day.
Yes. Most accessory dwellings need plans and a building permit, and some parcels need separate utility or driveway approvals. We coordinate the local path as part of the project.
Request a quote with your address and intended use. We review what the property allows, then outline design, permits, and a planning budget before construction.
Start your project
Ready to begin?
Free 60 to 90 minute in-home visit.
Planning guidance, design direction, no obligation.