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Conversion of backyard outbuilding into 1-bedroom accessory dwelling approved

The city approved turning an existing 504-square-foot outbuilding on a lot with a house into a 1-bed, 1-bath rental unit. The building sits too close to the side property line, so it was also recognized as legally nonconforming. Approval came June 16.

ApprovedPLN26-00058Filed Jan. 17, 2026West Boise · 10270 W La Hontan Dr+1 related filing
Site plan for Conversion of backyard outbuilding into 1-bedroom accessory dwelling approved
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, internal conversion

Project name on file: 10270 W La Hontan Dr - ADU & LNC

Timeline

  1. Oct. 14, 2026

    4 documents added

  2. June 16, 2026

    Planning Applications: Project Entitled

  3. April 14, 2026

    Pending Application Submittal: Planning Applications in Review

  4. March 9, 2026

    Concept Review Complete: CR Complete - Type 2

  5. Jan. 30, 2026

    Concept Review Complete: Notes

    Emailed to schedule concept review 1/30

  6. Jan. 17, 2026

    Application Submittal: Online

  7. Jan. 17, 2026

    Application filed

Documents

Site plans

Project narrative

  • Planner notes on a proposed accessory dwelling unit converted from an existing outbuilding that appears to sit within the side setback, requiring legally nonconforming status.

    March 9, 2026 · 2 pages · 467 KB · PDS-Concept Review Summary Report

    Download Concept review summary
  • Jan. 17, 2026 · 1 page · 1.7 MB · PDS-Other Small Docs

    Download Project description, rough draft floor plan

Application

  • Planning application to convert an existing shop into mother-in-law quarters, adding a bathroom, kitchenette, and heating and cooling.

    Jan. 17, 2026 · 2 pages · 158 KB · PDS-Application

    Download Accessory dwelling unit application form

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