Planning project · Planning application
Approved: Gunite pool and spa replace backyard vinyl-liner pool
The homeowner plans to replace an existing vinyl-liner pool with a 20-by-40-foot gunite pool in the same footprint, plus a 7-by-7-foot spa. The city approved the project administratively on March 17, 2026.
From the filing
The application's description as it appears in City of Boise's record. See the official record
CAT II Hillside
Project name on file: 106 N CASTELLO PL
Timeline
March 17, 2026
Planning Applications: Project Entitled
Feb. 10, 2026
Pending Application Submittal: Planning Applications in Review
Updated Via Script
Oct. 17, 2025
Pending Application Submittal: Start Additional IDR
Oct. 17, 2025
IDR Review Complete: IDR Waived
Oct. 17, 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 a possibility of a global slope stability analysis as determined by the geotechnical engineer; 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 of the immediate area that include a sanitary sewer cleanout located clearly on the plans that can be used to drain the pool & spa if necessary as draining onto the ground within the foothills is strictly prohibited.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.
Oct. 17, 2025
Concept Review Complete: CR Complete - Type 2
Oct. 16, 2025
Concept Review Complete: Engineering Preview
Oct. 16, 2025
Application Submittal: Online
Oct. 16, 2025
Application filed
Documents
Site plans
- Download Site plan showing new swimming pool and spa location
Drawing marking where a new pool and spa will go, in the same spot as the current liner pool; the scanned text is mostly illegible.
Oct. 16, 2025 · 1 page · 326 KB · PDS-Other Small Docs
Project narrative
- Download Letter of intent for pool replacement
Describes replacing an existing vinyl liner pool with a 20 by 40 foot gunite pool in the same footprint, plus a 7 by 7 foot spa, with minimal excavation.
Oct. 16, 2025 · 1 page · 75 KB · PDS-Other Small Docs
Application
- Download Planning project application for pool replacement and spa addition
Application to replace an existing vinyl liner pool with a 20' x 40' gunite pool with automatic safety cover and add a 7' x 7' gunite spa, footprint unchanged.
Oct. 16, 2025 · 2 pages · 158 KB · PDS-Application
- Download Public Works hillside project questionnaire
Questionnaire answering whether the project involves new parcel lines, additions, new dwellings, new driveways, grading over 12 inches, or retaining walls.
Oct. 16, 2025 · 1 page · 145 KB · PDS-Other Small Docs