Planning project · Planning application
Homeowner seeks city guidance on two terraced retaining walls, stairs and patio
A single-family homeowner filed a pre-application concept for two retaining walls no taller than 4 feet, a stairway, a paved patio and landscaping on a sloped yard. No new home or addition is proposed. The city is reviewing it at the concept stage.
About this application
No description has been published for this record yet.
Project name on file: 415 E CURLING DR
Timeline
Today
Status changed from “Engineering Preview” to “Concept Review”
Today
Concept Review Complete: Notes
empirenurseryhardscape@outlook.com was added as an additional authorized user
Today
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.
Today
Document added: PDS-Agency Comments - HILLSIDE RETAINING WALL PERMITTING_OCTOBER2025
Yesterday
Status changed from “Concept Review” to “Engineering Preview”
Yesterday
Concept Review Complete: Engineering Preview
Two days ago
4 documents added
Oct. 10, 2026
Application Submittal: Online
Oct. 10, 2026
Application filed
Documents
Site plans
- Download Conceptual basic site plan for retaining walls, patio, stairs, and landscaping
Pre-application concept sheet showing two terraced retaining walls up to 4 ft exposed, a paver patio, stairs, and a landscaped terrace; not for construction.
Oct. 10, 2026 · 2 pages · 5.5 MB · PDS-Other Small Docs
Project narrative
- Download Pre-application project description for retaining walls, patio, stairs, and landscaping
Preliminary concept for two terraced retaining walls, a stairway, a patio, and landscaping on a sloped residential lot, with guidance requested from Planning and Public Works.
Oct. 10, 2026 · 1 page · 4 KB · PDS-Other Small Docs
Application
- Download Planning project application for rear yard landscape and retaining walls
Application for two terraced retaining walls, stairs, a paver patio and landscaping on a sloped rear yard, with grading over 12 inches and no building addition.
Oct. 10, 2026 · 2 pages · 154 KB · PDS-Application
Other documents
- PDS-Agency Comments - HILLSIDE RETAINING WALL PERMITTING_OCTOBER2025
Today · 804 KB · PDS-Agency Comments
- Download Hillside project questionnaire
Public Works questionnaire answering whether the project involves new grading over 12 inches deep and retaining walls, including wall height and spacing details.
Oct. 10, 2026 · 1 page · 702 KB · PDS-Other Small Docs