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Planning project · Planning application

Accessory dwelling unit approved for single-family lot in historic district

The city approved a zoning certificate for one accessory dwelling unit on a 0.21-acre lot with an existing house on April 21. A separate Certificate of Appropriateness is also required for work in the historic district.

ApprovedPLN25-00649Filed Aug. 1, 2025North End · 1615 N 27th+3 related filings
Site plan for Accessory dwelling unit approved for single-family lot in historic district
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

ADU

Project name on file: 1615 N 27th - ADU

Timeline

  1. April 21, 2026

    Planning Applications: Project Entitled

  2. March 6, 2026

    Pending Application Submittal: Planning Applications in Review

    Updated Via Script

  3. Dec. 23, 2025

    Planning Applications: Generate Additional Application

  4. Sept. 23, 2025

    Pending Application Submittal: Planning Applications in Review

    Updated Via Script

  5. Sept. 16, 2025

    Planning Applications: Generate Additional Application

  6. Sept. 16, 2025

    Pending Application Submittal: Planning Applications in Review

  7. Sept. 6, 2025

    Planning Applications: Project Entitled

  8. Aug. 5, 2025

    Concept Review Complete: Corrections Required

    Please upload a site plan labeled SITE PLAN

  9. Aug. 5, 2025

    Concept Review Complete: CR Complete - Type 2

  10. Aug. 1, 2025

    Application Submittal: Online

  11. Aug. 1, 2025

    Application filed

Documents

Site plans

  • Site plan sheet C-100 for a proposed accessory dwelling unit, showing setbacks, driveway, sewer, water, gas, and power service locations, with general construction notes.

    Aug. 5, 2025 · 1 page · 343 KB · PDS-Other Small Docs

    Download Site plan for ADU project

Plans

  • Preliminary landscaping plan sheet showing existing and proposed lawn, sprinkler system, trees, fencing, driveway, and ADU placement, with front, back, and side yard views.

    Aug. 5, 2025 · 1 page · 3.5 MB · PDS-Other Small Docs

    Download Landscaping plan with site layout and yard views

  • Drawing sheet showing exterior elevations, materials, colors, and finished square footage (706 SF first floor plus 289 SF garage) for the proposed accessory dwelling unit.

    Aug. 1, 2025 · 1 page · 290 KB · PDS-Other Small Docs

    Download Architectural elevations and floor plan details for accessory dwelling unit

Project narrative

  • Advisory concept review summary covering an accessory dwelling unit in the historic district, required application sequence, and ADU standards.

    Aug. 5, 2025 · 3 pages · 454 KB · PDS-Concept Review Summary Report

    Download Concept review summary report

Application

  • Application to build a single-car-garage accessory dwelling unit under 1,000 sq ft behind the main home, to house a family member, with reduced alley setbacks.

    Aug. 1, 2025 · 2 pages · 153 KB · PDS-Application

    Download Planning application for accessory dwelling unit

Photos

Correspondence

Other documents

  • Signed owner-of-record statement granting permission to submit the application and agreeing to indemnify the city against ownership disputes.

    Aug. 1, 2025 · 1 page · 921 KB · PDS-Other Small Docs

    Download Statement of legal interest
  • Zoning checklist

    Aug. 1, 2025 · 866 KB · PDS-Other Small Docs

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