Planning project · Planning application
Historic district garage with apartment above approved to replace old garage
The Historic Preservation Commission approved plans to demolish a detached garage and build a new garage with one accessory dwelling unit above, under 1,000 square feet and 22 feet tall. The decision came June 23, 2026, and includes removing one rear yard tree.
From the filing
The application's description as it appears in City of Boise's record. See the official record
The city approved a Certificate of Appropriateness to remove one tree at 1009 N 12th St in Boise, in a residential zone with a historic design overlay. The record is tied to an accessory dwelling unit (ADU) project, but the document only covers the tree removal.
ADU/detached garage in historic district
Project name on file: 1009 N 12TH ST - ADU
Timeline
Oct. 13, 2026
14 documents added
June 23, 2026
Planning Applications: Project Entitled
May 29, 2026
Pending Application Submittal: Planning Applications in Review
May 28, 2026
Planning Applications: Generate Additional Application
Feb. 13, 2026
Pending Application Submittal: Planning Applications in Review
Feb. 11, 2026
IDR Review Complete: IDR Waived
Feb. 11, 2026
Neighborhood Meeting Review: Completed
Jan. 8, 2026
Concept Review Complete: CR Complete - Type 3
Jan. 6, 2026
Concept Review Complete: Notes
Before moving forward, staff will want to look into the garage more before having you submit and send over any documentation you may have to determine if it is indeed original. This will help better decided what your application will be requesting Reclassification or COA-Major Type 3. Regardless, it will be a COA-Major Type 3, however we want to know more about the structure before moving forward.
Dec. 18, 2025
Application Submittal: Online
Dec. 18, 2025
Application filed
Documents
Site plans
- Download Site plan and cover sheet
Sheet A0.0 for a proposed garage with accessory dwelling unit, including the lot coverage calculation, drawing list, energy code table, and general notes.
Dec. 18, 2025 · 3 pages · 493 KB · PDS-Other Small Docs
Plans
- Download Initial landscape plan
Site drawing showing dimensions, the proposed ADU, an existing tree marked for removal with City Arborist approval, and the existing garage and home.
Dec. 18, 2025 · 1 page · 124 KB · PDS-Other Small Docs
- Download PIC front elevation
Dec. 18, 2025 · 1 page · 86 KB · PDS-Other Small Docs
- Download Rear elevation
Dec. 18, 2025 · 1 page · 53 KB · PDS-Other Small Docs
Project narrative
- Download Concept review summary for ADU and garage replacement
Advisory concept review notes covering the detached garage demolition and replacement with an ADU above, required applications, and historic demolition findings.
June 8, 2026 · 3 pages · 477 KB · PDS-Concept Review Summary Report
- Download Concept review summary for ADU and garage replacement
Advisory concept review notes covering the detached garage demolition and replacement with an ADU above, required applications, and historic demolition findings.
June 8, 2026 · 3 pages · 477 KB · PDS-Concept Review Summary Report
- Download Project description for accessory dwelling unit
Describes plans to remove an existing garage and build a new two-car garage with 500 sq ft of living space above, submitted with a design review request.
Dec. 18, 2025 · 1 page · 138 KB · PDS-Other Small Docs
Decisions
- Download Arborist approval to remove rear yard tree
Approval notice for a Certificate of Appropriateness to remove one tree in a historic design overlay zone, with instructions for appealing the decision.
Dec. 18, 2025 · 1 page · 8.9 MB · PDS-Other Small Docs
Notices
- Download Neighborhood meeting summary form
Applicant's summary of the Feb. 5, 2026 neighborhood meeting, listing shared site plan and elevations and feedback on permeable pavers and window placement.
Feb. 11, 2026 · 8 pages · 561 KB · PDS-Other Small Docs
Application
- Download Planning project application form
Application for a permit to build a new garage with an accessory dwelling unit above it, with the garage and ADU each about 497 sq ft, in a R-2 zone.
Dec. 18, 2025 · 2 pages · 159 KB · PDS-Application
Photos
- Download Rear yard photo
Dec. 18, 2025 · 1 page · 93 KB · PDS-Other Small Docs
Correspondence
- Download Arborist letter supporting removal of Norway maple
A certified arborist agrees that a Norway maple must be removed because a planned secondary dwelling would sit within its critical root zone and trunk area, and notes a second maple will replace lost canopy.
Dec. 18, 2025 · 1 page · 214 KB · PDS-Other Small Docs
- Download Veolia water pressure and flow letter for fire flow
Water utility letter reporting system pressure and flow at a hydrant for fire sprinkler design, to be attached to the architectural plan sets.
Dec. 18, 2025 · 1 page · 129 KB · PDS-Other Small Docs
Other documents
- Download Signed statement of legal interest
Property owner's signed declaration granting permission to an applicant to submit the accompanying planning application and agreeing to indemnify the city.
Dec. 18, 2025 · 1 page · 7.1 MB · PDS-Other Small Docs
