Planning project · Planning application
900-square-foot detached backyard home proposed on hillside lot with existing house
The plan adds one accessory dwelling of about 900 square feet next to an existing 3,982-square-foot house on 0.62 acres. It needs a hillside review and a zoning certificate, and staff will decide administratively. The application was filed Oct. 24.

From the filing
The application's description as it appears in City of Boise's record. See the official record
ADU & CAT II Hillside
Project name on file: 2710 E TABLE ROCK RD
Timeline
Nov. 18, 2025
Concept Review Complete: CR Complete - Type 2
Nov. 5, 2025
Concept Review Complete: Corrections Required
- Site plan shows building within the Building Envelope EasementPlease provide me with an updated Site Plan that reflects the ADU outside of this easement
Oct. 24, 2025
Concept Review Complete: Engineering Preview
Oct. 24, 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; 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.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. 24, 2025
Application Submittal: Online
Oct. 24, 2025
Application filed
Documents
Site plans
- Download Proposed ADU site plan
Diagrammatic site plan for a new detached accessory dwelling unit (ADU) on the property, with notes that it is not a parcel survey and is based on GIS mapping.
Oct. 24, 2025 · 1 page · 1.9 MB · PDS-Other Small Docs
Project narrative
- Download Concept review summary for accessory dwelling unit
Planner notes from the Nov. 18, 2025 concept review on a detached ADU, covering required applications, ADU size and bedroom limits, design standards, and fire access.
Nov. 18, 2025 · 3 pages · 464 KB · PDS-Concept Review Summary Report
- Download Project description and drawing legend for detached accessory dwelling unit
Project info sheet for a new 900 sq ft two-story detached accessory dwelling unit, with architectural symbol legend, site plan notes, and contact details for the architect firm.
Oct. 24, 2025 · 1 page · 484 KB · PDS-Other Small Docs
Application
- Download Planning project application form
Application for a new detached accessory dwelling unit in the R-1B zone, with applicant, owner and property details and a hillside questionnaire requirement.
Oct. 24, 2025 · 2 pages · 158 KB · PDS-Application
Other documents
- Download Public Works hillside project questionnaire
Checked answers on a hillside questionnaire covering new dwelling, grading over 12 inches, and a retaining wall, with wall height and spacing questions.
Oct. 24, 2025 · 1 page · 692 KB · PDS-Other Small Docs
