Planning project · Planning application
Single-family home with retaining walls approved in Boise foothills hillside area
City staff approved plans for one single-family home on a 0.2-acre lot in the hillside overlay on March 2. The home will need geotechnical review and engineering for retaining walls, and any rock piles must be removed before construction.
From the filing
The application's description as it appears in City of Boise's record. See the official record
Single-family home in hillside overlay
Project name on file: 3588 E ASTEROID DR
Timeline
Jan. 30, 2026
Planning Applications: Project Entitled
Nov. 14, 2025
Pending Application Submittal: Planning Applications in Review
Nov. 14, 2025
Concept Review Complete: CR Complete - Type 2
Nov. 12, 2025
Concept Review Complete: Engineering Preview
Nov. 12, 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 the possibility of a global slope stability analysis (please see the Agency Comment for Hillside Retaining Wall Permitting within this PLN ); 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 (these requirements will be assessed again at the time of occupancy); and civil plans.Additionally, rock piles shall be removed prior to construction of the home. The Geotechnical Engineer shall comment in their report that all rock material shall been removed from the site and a site inspection report shall indicate that the rock removal is complete and the site is suitable for construction.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.
Nov. 11, 2025
Application Submittal: Online
Nov. 11, 2025
Application filed
Documents
Site plans
- Download Site plan with general notes and specifications
Site plan sheet for Boulder Point lot 19, block 10, containing general construction notes on code compliance, drainage grading, and setbacks.
Nov. 11, 2025 · 1 page · 733 KB · PDS-Other Small Docs
Project narrative
- Download Concept review summary
Advisory concept review notes for a single-family dwave and retaining walls in a hillside overlay, requiring a Category II hillside application, geotechnical report, and rock removal.
Nov. 14, 2025 · 2 pages · 458 KB · PDS-Concept Review Summary Report
Application
- Download Planning project application form for single-family home
Application for a new single-family detached home in the A-1 zone, with applicant and owner contact details and a hillside questionnaire requirement.
Nov. 11, 2025 · 2 pages · 158 KB · PDS-Application
Correspondence
- Download Hillside retaining wall permitting guidance
Public Works guidance on when retaining walls in the hillside zone need a determination, slope stability analysis, and planning-code height and setback limits.
Nov. 12, 2025 · 5 pages · 804 KB · PDS-Agency Comments
