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Zoning certificate · Planning application

784-square-foot apartment above garage approved with conditions for new Boise home

Trinity Homes will build a one-bedroom accessory unit over the garage of a new two-story house, reached by an outdoor rear staircase. Approved without a public hearing on Oct. 6, with conditions on size, a paved entry path and drainage.

ApprovedCZC26-00192Filed July 27, 2026West Bench · 2966 N Milwaukee St+1 related filing
Site plan for 784-square-foot apartment above garage approved with conditions for new Boise home
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

From the filing

The application's description as it appears in City of Boise's record. See the official record

Trinity Homes is building a 784-square-foot, one-bedroom accessory dwelling unit above the garage of a new two-story single-family home at 2966 N Milwaukee Street in Boise. The unit will be reached by an uncovered outdoor staircase at the rear of the house. The city's planning department approved it administratively without a public hearing.

SFD with ADU over the garage

Project name on file: 2966 N Milwaukee St - ADU

Timeline

  1. Oct. 8, 2026

    Review Complete: Completed

  2. Oct. 8, 2026

    Planning and Zoning: Complete

  3. Sept. 30, 2026

    Planning and Zoning: In Review

  4. Sept. 30, 2026

    Assign Reviewers: Completed

  5. Sept. 24, 2026

    Review Complete: Corrections Required

  6. Sept. 24, 2026

    Planning and Zoning: Corrections Required

  7. Sept. 15, 2026

    Planning and Zoning: In Review

  8. Sept. 15, 2026

    Assign Reviewers: Completed

  9. Aug. 28, 2026

    Review Complete: Corrections Required

  10. Aug. 28, 2026

    Planning and Zoning: Corrections Required

  11. Aug. 10, 2026

    Planning and Zoning: In Review

  12. Aug. 10, 2026

    Assign Reviewers: Completed

  13. Aug. 3, 2026

    Fee Payment: Payment Received

  14. July 31, 2026

    Prescreen Review: Passed

  15. July 31, 2026

    Prescreen Review: In Progress

  16. July 27, 2026

    Application Submittal: ePlanReview

  17. July 27, 2026

    Application filed

Documents

Site plans

  • Site plan sheet A0.0 for a house and ADU, with setbacks, utility notes, the residential energy code compliance table, and a list of the drawing set.

    Oct. 6, 2026 · 1 page · 47 KB · PDS-Maps and Drawings

    Download Site plan with drawing list and energy code table, version 2
  • Sheet A0.0 showing the site layout, setbacks, utility easements, driveway and drawing list, along with the energy code compliance table for the residential project.

    Aug. 21, 2026 · 1 page · 52 KB · PDS-Maps and Drawings

    Download Site plan and cover sheet

Plans

  • Building section drawings for a residence, showing roof and floor trusses, insulation, stair and handrail details, and a corbel detail at the entry, dated August 3, 2026.

    Aug. 21, 2026 · 1 page · 135 KB · PDS-Maps and Drawings

    Download Building sections
  • Exterior elevation drawings (sheet A4.0) showing roof height, floor levels, board and batten siding, and stair and handrail details for the zoning certificate.

    Aug. 21, 2026 · 1 page · 40 KB · PDS-Maps and Drawings

    Download Building elevations, front, rear and sides
  • Architectural main floor plan sheet A2.0 with general construction notes on walls, glazing, fire-rated gypsum board, and garage separation; showing 680 sq ft main floor and 1,347 sq ft total.

    Aug. 21, 2026 · 1 page · 34 KB · PDS-Maps and Drawings

    Download Main floor plan
  • Upper-level floor plan drawing with general construction notes, room dimensions and window schedule, dated 8/3/2026 for a zoning certificate application.

    Aug. 21, 2026 · 1 page · 44 KB · PDS-Maps and Drawings

    Download Upper floor plan

Project narrative

  • Letter of intent describing planned construction work, including an ADU space added to the home design, for a zoning certificate application.

    Aug. 21, 2026 · 1 page · 31 KB · PDS-Letter of Intent

    Download Letter of intent

Decisions

  • Action letter approving an attached accessory dwelling unit over a garage under BCC 11-03-03.2.B, with findings on size, density and accessory use.

    Oct. 14, 2026 · 8 pages · 202 KB · PDS-Action Letter

    Download Zoning certificate approval letter for attached ADU

Notices

  • Notice that a zoning certificate was approved for a single-family dwelling with an attached accessory dwelling unit, with appeals due by October 16, 2026.

    Oct. 2, 2026 · 2 pages · 758 KB · PDS-Legal Notice

    Download Notice of approval for zoning certificate

Application

  • Application for a zoning certificate for a 748 sq ft accessory dwelling unit with one bedroom over a garage, with a single-family home on the property.

    Aug. 21, 2026 · 3 pages · 204 KB · PDS-Application

    Download Zoning certificate application for accessory dwelling unit
  • Application for a zoning certificate to add a 748 sq ft accessory dwelling unit over the garage of a single-family home in the R-1C zone, with one bedroom proposed.

    July 27, 2026 · 3 pages · 202 KB · PDS-Application

    Download Zoning certificate application for accessory dwelling unit

Photos

  • Photographs of the site, taken August 3, 2026, filed with the zoning certificate application.

    Aug. 21, 2026 · 1 page · 58 KB · PDS-Photos

    Download Site photos

Correspondence

  • ACHD finds no adjacent street improvements required and lists conditions: traffic impact fee, driveway approach permits, right-of-way work permits, and standard conditions.

    Oct. 6, 2026 · 3 pages · 166 KB · PDS-Agency Comments

    Download Ada County Highway District comments
  • Fire Marshal's recommended approval with five access-road conditions covering dead-end turnarounds, reach to exterior walls, width and clearance, turning radii, and road load capacity.

    Oct. 6, 2026 · 1 page · 188 KB · PDS-Agency Comments

    Download Boise Fire Department comments
  • Public Works reviewer found no hillside or drainage conditions apply, and the project does not require a Stormwater Management Plan.

    Oct. 6, 2026 · 1 page · 134 KB · PDS-Agency Comments

    Download Hillside and drainage comments
  • Boise Parks and Recreation, reviewed with Community Forestry, has no comments or recommendations on the current application.

    Oct. 6, 2026 · 1 page · 57 KB · PDS-Agency Comments

    Download Parks and Recreation comments
  • Oct. 6, 2026 · 1 page · 64 KB · PDS-Agency Comments

    Download Public Works sewer comments
  • Public Works street light trades supervisor reviewed the application and submitted no comments.

    Oct. 6, 2026 · 1 page · 125 KB · PDS-Agency Comments

    Download Street light comments from Public Works
  • Oct. 6, 2026 · 1 page · 198 KB · PDS-Agency Comments

    Download PDS-Agency Comments - WEST BOISE SEWER DISTRICT COMMENTS 9/2/26
  • Capitol Water Corporation letter stating a nearby fire hydrant will flow a minimum of 2000 GPM, with a caveat that flows may change with system demand.

    Aug. 21, 2026 · 1 page · 128 KB · PDS-Other Small Docs

    Download Water utility fire flow letter

Other documents

  • Noticing radius map

    Oct. 2, 2026 · 525 KB · PDS-Maps and Drawings

  • ADU checklist

    Aug. 21, 2026 · 871 KB · PDS-Other Small Docs

  • Statement of legal interest

    Aug. 21, 2026 · 166 KB · PDS-Statement of Legal Interest

  • Transmittal to agencies

    Aug. 21, 2026 · 132 KB · PDS-Transmittal Agencies

  • Receipt

    Aug. 3, 2026 · 131 KB · PDS-Receipts

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