Planning project · Planning application
Detached garage on 1.56-acre hillside lot approved
City staff approved a detached garage on a residential lot of about 1.56 acres in the city's Hillside overlay area. The Oct. 6, 2026, decision was made administratively, without a public hearing.
From the filing
The application's description as it appears in City of Boise's record. See the official record
Detached garage in Hillside overlay.
Project name on file: 4425 N CARTWRIGHT RD
Timeline
Oct. 6, 2026
Planning Applications: Project Entitled
March 3, 2026
Pending Application Submittal: Planning Applications in Review
Oct. 24, 2025
Concept Review Complete: CR Complete - Type 2
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.
Sept. 30, 2025
Concept Review Complete: Engineering Preview
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.
Sept. 22, 2025
Concept Review Complete: Hillside Questionnaire Needed
Sept. 18, 2025
Application Submittal: Online
Sept. 18, 2025
Application filed
Documents
Site plans
- Download Concept review summary report
Planner's concept review notes for a Category II hillside project with a detached garage, covering required applications, driveway limits, and expected geotechnical and structural documents.
Oct. 24, 2025 · 2 pages · 454 KB · PDS-Concept Review Summary Report
- Download Revised site plan with one option and square footage
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 Concept site plan with options
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
Application
- Download Public Works hillside project questionnaire
Questionnaire answering whether the project involves new parcels, additions, dwellings, driveways, grading over 12 inches, or retaining walls, with grading checked as yes and walls checked as yes.
Sept. 22, 2025 · 1 page · 102 KB · PDS-Other Small Docs
- Download Planning project application form
Application for a detached garage on an A-1 zoned residential parcel, with applicant and owner contact information and a hillside questionnaire requirement.
Sept. 18, 2025 · 2 pages · 154 KB · PDS-Application
