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Planning project · Planning application

Single-family home proposed on foothills lot under hillside rules

The plan calls for one house on about a quarter-acre lot. City planners say it needs the stricter hillside review because of slope and unstable soils, and a geotechnical report is expected. The application is under administrative review.

In reviewPLN26-00285Filed March 24, 2026Warm Springs Mesa · 3623 E Asteroid Ct+1 related filing
Site plan for Single-family home proposed on foothills lot under hillside rules
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

From the filing

City of Boise hasn't published a description of this application yet. See the official record

Project name on file: 3623 E ASTEROID CT

Timeline

  1. Oct. 14, 2026

    4 documents added

  2. June 29, 2026

    Pending Application Submittal: Planning Applications in Review

  3. March 26, 2026

    Concept Review Complete: CR Complete - Type 2

  4. March 25, 2026

    Concept Review Complete: Engineering Preview

  5. March 25, 2026

    Concept Review Complete: Engineering Preview Complete

    A determination has been made that this project will be a Category II Hillside project due to slope, erosion-prone soils, unstable soils, earth movement, and other geologic and hydrologic hazards. 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 site-specific geotechnical report; 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, having a backslope greater than three feet horizontal to one foot vertical, or that has structural components (these requirements will be assessed again at the time of occupancy); and civil plans.A subgrade inspection by a geotechnical firm will be required at the time of construction once the subgrade is exposed and prior to placement of foundation materials or forms/rebar. A report of the inspection will need to be submitted and accepted by PW Hillside (HillsideDrainage@cityofboise.org) before scheduling your inspection with the Building Department and receiving final occupancy.NOTE: The hazards of developing and building on a property, especially in the Boise foothills, are 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. Developer will comply with all requirements of Boise City Hillside Development Code Sections or submit evidence satisfactory to the Boise City Engineer that the proposed development is exempt from the requirements therein stated due to location, topography and/or the absence of adverse conditions associated with slope stability, ground water, erosion and sedimentation.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.

  6. March 24, 2026

    Application Submittal: Online

  7. March 24, 2026

    Application filed

Documents

Site plans

  • Site plan sheet at 1"=10' scale showing drainage requirements (R401.3), design criteria, and floor area totals for a single-family residence.

    March 24, 2026 · 1 page · 300 KB · PDS-Other Small Docs

    Download Site plan for single-family home on Lot 30, Block 10

Project narrative

  • Advisory concept review summary for a single-family home in the Hillside Overlay, noting a Category II Hillside application and expected geotechnical and retaining wall documents.

    March 26, 2026 · 2 pages · 465 KB · PDS-Concept Review Summary Report

    Download Concept review summary report

Application

  • Application for a new single-family home on an A-1 zoned lot, with a hillside questionnaire required for the project.

    March 24, 2026 · 2 pages · 158 KB · PDS-Application

    Download Planning project application form

Other documents

  • Checklist answering whether the project involves new parcel boundaries, a new dwelling, a new driveway, grading over 12 inches, or retaining walls.

    March 24, 2026 · 1 page · 700 KB · PDS-Other Small Docs

    Download Public Works hillside project questionnaire

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