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Looking for room addition in Star, Idaho? Homes near Star River Ranch and across Star often need layouts that meet the applicable local building requirements and inspection schedules. Boise Remodeling Co offers design-build room addition 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.

Room Addition

Room Addition in Star, Idaho

Looking for room addition in Star, Idaho? Homes near Star River Ranch and across Star often need layouts that meet the applicable local building requirements and inspection schedules. Boise Remodeling Co offers design-build room addition 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.

Get an estimate

Planning from$95kYour exact range is confirmed at the free in-home visit

A CLEAR SCOPE

Plan the details.
Know the next step.

  • 01Feasibility and site evaluation
  • 02Foundation and framing
  • 03Roof tie-in and exterior finish
  • 04Interior finish to match existing home
  • 05Permit and inspection coordination

Why choose us

Why homeowners choose us

  • 01

    Structural and architectural planning

    before breaking ground

  • 02

    Exterior materials matched to

    your existing home

  • 03

    Clear permit path for

    Ada and Canyon County

  • 04

    Integrated HVAC and electrical planning

How it works

Our process, step by step

01

Site visit

We review setbacks, access, and structural implications.

02

Design and engineering

Plans address code, loads, and aesthetic match.

03

Construction

Foundation through finish with weekly communication.

04

Inspections and closeout

We coordinate final inspections and walkthrough.

Planning details

Typical timeline

Additions vary widely; many projects run 3 to 5 months from design through certificate of occupancy.

Local details

Local notes

For room addition in Star, 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.

Room Addition cost in Star

Planning ranges for Star match the broader Treasure Valley market. As of 2026, room additions in the Boise area commonly plan $80,000 to $250,000 or more. Single-room bump-outs sit at the lower end; primary suite additions with bathrooms and second-story additions with structural upgrades reach the upper end.

These are planning ranges, not bids. Foundation, roof tie-in, and whether plumbing is included drive addition budgets, which we confirm in a written scope after your free in-home visit.

Room Addition across Star neighborhoods

We design and build room addition projects throughout Star, including Star River Ranch, Hillsdale, Paramount, Star Crossing. Housing stock varies between these neighborhoods, so we tailor layouts, structural details, and finish selections to the age and style of your specific Star home.

As a local team familiar with Star landmarks like Boise River, Star Riverfront Park, Celebration Park, we understand the character of the area and plan room addition work that fits the neighborhood and protects resale value.

Room Addition permits and planning in Ada County

Room Addition projects in Star 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 Star room addition designs also account for the local semi-arid climate with hot summers and cool winters - from insulation and ventilation choices to materials that hold up to Treasure Valley freeze-thaw cycles.

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 estimate

Free · 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

Start your project

Ready to begin?

Free 60 to 90 minute in-home visit.

Planning guidance, design direction, no obligation.