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Duplex and accessory dwelling approved on small lot; existing home to be converted

The city approved plans to build a duplex and turn the existing house into an accessory dwelling unit on a 0.14-acre lot. Planners said the project must add a detached sidewalk, street trees and tree replacement. Staff approved it on Oct. 8, 2026.

ApprovedPLN24-00769Filed July 25, 2024West End · 980 N Clithero Dr+1 related filing
Site plan for Duplex and accessory dwelling approved on small lot; existing home to be converted
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

Build duplex or triplex and convert existing home into an ADU.

Project name on file: 980 N CLITHERO DR

Timeline

  1. Oct. 14, 2026

    8 documents added

  2. Feb. 12, 2025

    Planning Applications: Generate Additional Application

    CZC

  3. Dec. 12, 2024

    Planning Applications: Project Entitled

  4. Nov. 26, 2024

    Planning Applications: Project Entitled

  5. Sept. 10, 2024

    Planning Applications: Additional Application Required

  6. Sept. 10, 2024

    Pending Application Submittal: Planning Applications in Review

  7. Sept. 10, 2024

    Concept Review Complete: CR Complete - Type 2

    Resending through CR to regenerate CZC app, due to Contact issue.

  8. Sept. 9, 2024

    Concept Review Complete: CR Complete - Type 2

    For the Legal Non-conforming application.

  9. Sept. 9, 2024

    Early Assistance Review: Send to Concept Review

  10. Sept. 3, 2024

    Early Assistance Review: Corrections Required

    How many bedrooms will each unit of the duplex have?

  11. Aug. 6, 2024

    Early Assistance Review: Corrections Required

    Thank you for the site plan. For a property to have an ADU there must be a primary home. Since the existing structure is the primary then it cannot be classified as an ADU unless you are also building a primary. You can proceed with a remodel as is and not have to classify this as an ADU because it is the only dwelling unit. If you are wanting the existing unit to be classified as an ADU then you will need a primary use, such as the duplex or triplex you are proposing.Would you like to proceed with the ADU and the duplex/triplex application or just remodel the existing home as is and come back when you are ready to submit for an ADU with a duplex/triplex development?

  12. Aug. 1, 2024

    Early Assistance Review: Corrections Required

    Please provide a site plan clearly showing the size of the structure and how close the structure will be located to the property lines.

  13. July 25, 2024

    Application Submittal: Online

  14. July 25, 2024

    Application filed

Documents

Site plans

  • Site plan showing a proposed duplex with a garage, a converted accessory dwelling unit, sidewalk and curb improvements along the frontage, and a privacy fence.

    Feb. 12, 2025 · 1 page · 3.1 MB · PDS-Maps and Drawings

    Download Site plan for duplex and ADU conversion
  • Duplex and ADU site plan, updated version

    Sept. 9, 2024 · 315 KB · PDS-Other Small Docs

  • Site plan

    Aug. 6, 2024 · 892 KB · PDS-Other Small Docs

Project narrative

  • Planner's advisory summary for a proposed duplex and ADU conversion, covering parking, curb and sidewalk, solid waste, and tree mitigation requirements.

    Feb. 12, 2025 · 2 pages · 452 KB · PDS-Concept Review Summary Report

    Download Concept review summary
  • Concept review summary report

    Sept. 9, 2024 · 453 KB · PDS-Concept Review Summary Report

  • Concept review summary report

    Sept. 9, 2024 · 453 KB · PDS-Concept Review Summary Report

Application

  • Planning application form

    July 25, 2024 · 153 KB · PDS-Application

Correspondence

  • Public Works solid waste specialist flags limited curb space for staging carts (15 feet per unit) and suggests a shared service arrangement between the ADU and duplex unit.

    Feb. 24, 2025 · 2 pages · 163 KB · PDS-Correspondence

    Download Solid waste pre-application comments

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