Planning project · Planning application
Accessory dwelling unit with two-car garage proposed in historic district
The plan adds one accessory dwelling to a lot with an existing house, plus a side-loaded garage reached from the alley. It needs historic design approval and a variance to put vehicle backup space in the side setback.
From the filing
The application's description as it appears in City of Boise's record. See the official record
ADU
Project name on file: 809 N 18TH ST - ADU
Timeline
Oct. 13, 2026
4 documents added
Oct. 13, 2026
Status changed from Submitted to In review
Reported as “Neighborhood Meeting Review”.
Aug. 12, 2026
Concept Review Complete: CR Complete - Type 3
July 24, 2026
Application Submittal: Online
July 24, 2026
Application filed
Documents
Project narrative
- Download Concept review summary report
Advisory concept review summary covering an ADU and side-loaded two-car garage, alley access and backup space rules, and required Historic Certificate of Appropriateness and variance.
Aug. 12, 2026 · 2 pages · 460 KB · PDS-Concept Review Summary Report
Application
- Download Planning project application for accessory dwelling unit
Application for a 968 sq ft two-story accessory structure with a 484 sq ft garage and 484 sq ft accessory dwelling unit in the R-1C zone.
July 24, 2026 · 2 pages · 154 KB · PDS-Application
Correspondence
- Download Letter of explanation for garage and accessory dwelling unit
Applicant's letter explaining the proposed replacement garage with an upstairs guest unit (ADU), its placement, footprint and size, and why the garage was demolished.
July 24, 2026 · 1 page · 260 KB · PDS-Other Small Docs
Other documents
- Cover page, site plan, project data, zoning and code evaluation, floor plans, elevations
Combined set of cover sheet, site plan, property and project data, zoning and building code evaluation, floor plans, and elevations for the application.
July 24, 2026 · 3.8 MB · PDS-Other Small Docs
