Planning project · Planning application
Backyard pool and spa proposed on hillside lot, pending city review
The plan calls for a 13-by-38-foot pool and a 7-by-8-foot spa on a 0.57-acre residential lot. The city says the slope and unstable soils make it a Category II hillside project, so geotechnical and drainage reports are required. Staff are reviewing it.

From the filing
The application's description as it appears in City of Boise's record. See the official record
Cat II
Project name on file: 3232 W CRESCENT RIM DR
Timeline
Oct. 13, 2026
7 documents added
Aug. 28, 2026
Planning Applications: Generate Additional Application
Aug. 28, 2026
Pending Application Submittal: Planning Applications in Review
July 20, 2026
Concept Review Complete: CR Complete - Type 2
July 17, 2026
Concept Review Complete: Engineering Preview
July 17, 2026
Concept Review Complete: Engineering Preview Complete
Based on submitted documents and limited overview of the property, 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 (please submit them with subsequent applications), 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 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 system that is greater than four feet in height from top of foundation to top of wall, that has more than one wall when the interior horizontal distance between the walls is less than 10 feet and the total height of all walls exceeds four feet, that has a surcharge, that has 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. Please refer to the Hillside Development Requirements for Technical Reports for grading & drainage plan and geotechnical report requirements.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 to 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. Please include your application number and address in the subject line.
July 15, 2026
Concept Review Complete: Hillside Questionnaire Needed
July 13, 2026
Application Submittal: Online
July 13, 2026
Application filed
Documents
Site plans
- Download Grading, drainage, and site plan
Civil sheet index and general notes for the pool project, including the site plan (CS-101) and grading and drainage plan (CG-101) sheets.
July 13, 2026 · 3 pages · 2.0 MB · PDS-Other Small Docs
Plans
- Download Pool plan with dimensions and material takeoff
Pool sheet from H2O Pools listing two pool envelopes, depth of 3 to 6 feet, volume of 19,890 gallons, interior finish, coping, steps and concrete and rebar quantities.
July 13, 2026 · 1 page · 278 KB · PDS-Other Small Docs
Project narrative
- Download Concept review summary
Planning concept review summary for a 13x38 ft pool and 7x8 ft spa, determined to be a Category II Hillside project requiring a geotechnical report and possible retaining wall analysis.
July 20, 2026 · 2 pages · 452 KB · PDS-Concept Review Summary Report
- Download Project description
July 13, 2026 · 68 KB · PDS-Other Small Docs
Application
- Download Planning project application form for pool and spa construction
Application form for building a 13 by 38 foot pool and 7 by 8 foot spa in an R-1B zone, with the applicant's pool company and a required Hillside Questionnaire reference.
July 13, 2026 · 2 pages · 154 KB · PDS-Application
Studies and reports
- Download Geotechnical investigation for pool project
Geotechnical investigation by ABCO for an H2O Pools & Design swimming pool project, covering methods, subsurface profile, groundwater, corrosion potential and foundation recommendations.
July 13, 2026 · 56 pages · 10.4 MB · PDS-Other Small Docs
Other documents
- Download Public Works hillside project questionnaire
Applicant questionnaire answering No to all listed hillside project triggers, including new parcels, new structures, driveways, grading over 12 inches, and retaining walls.
July 16, 2026 · 1 page · 694 KB · PDS-Other Small Docs
