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Planning project · Planning application

Attached 1-bedroom accessory dwelling unit approved for single-family home

The city approved a plan to add a one-bedroom, one-bathroom attached accessory dwelling unit to an existing three-bedroom single-family home, with no change to parking. The approval was made administratively on Nov. 25.

ApprovedPLN25-00845Filed Sept. 25, 2025Hillcrest · 4000 W Greenbrier Dr+1 related filing
Site plan for Attached 1-bedroom accessory dwelling unit approved for single-family home
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

From the filing

The application's description as it appears in City of Boise's record. See the official record

Attached ADU

Project name on file: 4000 W GREENBRIER DR

Timeline

  1. Nov. 25, 2025

    Planning Applications: Project Entitled

  2. Oct. 1, 2025

    Pending Application Submittal: Planning Applications in Review

  3. Sept. 30, 2025

    Concept Review Complete: CR Complete - Type 2

  4. Sept. 25, 2025

    Application Submittal: Online

  5. Sept. 25, 2025

    Application filed

Documents

Plans

  • Preliminary site and floor plans for a 578 sq ft residential addition to an existing 1,492 sq ft home, with project data, general notes, design criteria and consultant contacts.

    Sept. 26, 2025 · 4 pages · 1.2 MB · PDS-Maps and Drawings

    Download Site and floor plans

Project narrative

  • Staff's advisory concept review notes on a proposed attached accessory dwelling unit, covering required zoning certificate, a 15-foot street side setback, and ADU use standards.

    Sept. 30, 2025 · 1 page · 446 KB · PDS-Concept Review Summary Report

    Download Concept review summary for attached ADU

Application

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