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Detached garage approved on a 1.56-acre residential lot in hillside area

City staff approved plans for a detached garage on a lot of about 1.56 acres in the Hillside overlay. The administrative approval came Oct. 6, 2026, without a public hearing.

ApprovedPLN25-00825Filed Sept. 18, 2025Highlands · 4425 N Cartwright Rd+1 related filing
Site plan for Detached garage approved on a 1.56-acre residential lot in hillside area
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

About this application

Detached garage in Hillside overlay.

Project name on file: 4425 N CARTWRIGHT RD

Timeline

  1. Oct. 6, 2026

    Planning Applications: Project Entitled

  2. March 3, 2026

    Pending Application Submittal: Planning Applications in Review

  3. Oct. 24, 2025

    Concept Review Complete: CR Complete - Type 2

  4. Oct. 7, 2025

    Concept Review Complete: Corrections Required

    Please include the square footage of the accessory structure on the Site Plan. Accessory Structures >1000 s.f. require a Zoning Compliance Review. In addition, an accessory structure may not be in front of a primary. Please update your Site Plan to reflect that you shall be meeting this requirement.Thank you.

  5. Sept. 30, 2025

    Concept Review Complete: Engineering Preview

  6. Sept. 30, 2025

    Concept Review Complete: Engineering Preview Complete

    A determination has been made that this project will be a Category II Hillside project due to the nature of surrounding slopes. In addition to the already submitted documents, additional documents may be required during the CFH Review process.Additional documents that you can expect to provide will be a geotechnical report with possibly a global slope stability analysis; structural calculations for any retaining wall that is greater than four feet of height, more than one retaining wall when the horizontal interior distance between the retaining walls is less than 10 feet and the total of all retaining walls exceeds four feet in height, a retaining wall having a surcharge, or having a backslope greater than three feet horizontal to one foot vertical; and civil plans.NOTE: The hazards of developing and building on property, especially in the Boise foothills, is well known. It is the responsibility of the applicant/owner’s design, geological, and engineering professionals, not the City, to identify, address, and mitigate any hazards to the site. Satisfying these Conditions of Approval is for limited [City purpose] only and should not be relied on for design, geological or engineering purposes.If you would like to discuss this determination, please contact us at HillsideDrainage@cityofboise.org or we can set up a meeting if you prefer.

  7. Sept. 22, 2025

    Concept Review Complete: Hillside Questionnaire Needed

  8. Sept. 18, 2025

    Application Submittal: Online

  9. Sept. 18, 2025

    Application filed

Documents

Site plans

  • Revised site plan adding one option and square footage per a staff request, with handwritten notes from Public Works and Planning on location, option, and material selection.

    Oct. 23, 2025 · 2 pages · 1.3 MB · PDS-Other Small Docs

    Download Revised site plan with one option and square footage
  • Handwritten-style markup on a concept site plan showing two options, with notes that planning would approve the location and option and to follow the most restrictive IR1 material selection.

    Sept. 18, 2025 · 2 pages · 1.4 MB · PDS-Other Small Docs

    Download Concept site plan with options

Other documents

  • PDS-Concept Review Summary Report -

    Oct. 24, 2025 · 454 KB · PDS-Concept Review Summary Report

  • PDS-Other Small Docs - HILLSIDE QUESTIONNAIRE

    Sept. 22, 2025 · 102 KB · PDS-Other Small Docs

  • PDS-Application

    Sept. 18, 2025 · 154 KB · PDS-Application

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