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785-square-foot detached backyard unit approved in historic district

The Historic Preservation Commission approved a new detached accessory dwelling unit of 785 square feet on a 0.14-acre lot with an existing single-family house. The decision came Oct. 13.

ApprovedPLN26-00123Filed Feb. 2, 2026East End · 712 E Mckinley St+3 related filings
Site plan for 785-square-foot detached backyard unit approved in historic district
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

About this application

New detached ADU in a historic district.

Project name on file: 712 E MCKINLEY ST - ADU

Timeline

  1. Yesterday

    Status changed from In review to Approved

    Reported as “Project Entitled”.

  2. Two days ago

    Approved

  3. Aug. 14, 2026

    Planning Applications: Project Entitled

  4. March 13, 2026

    Pending Application Submittal: Planning Applications in Review

  5. March 13, 2026

    IDR Review Complete: IDR Waived

  6. March 13, 2026

    Neighborhood Meeting Review: Completed

  7. Feb. 25, 2026

    Concept Review Complete: CR Complete - Type 3

  8. Feb. 17, 2026

    Concept Review Complete: Notes

    Emailed for CR meeting w/ Richard

  9. Feb. 2, 2026

    Application Submittal: Online

  10. Feb. 2, 2026

    Application filed

Documents

Site plans

  • Site plan showing a new accessory dwelling unit of about 785 square feet, a roof garden, a new gate and fence, and new utility meters and panels on the lot.

    March 13, 2026 · 1 page · 376 KB · PDS-Neighborhood Meeting

    Download Neighborhood meeting site plan
  • Sheet of abbreviations, symbols and drawing index for the architectural set, with a site and context layout showing setbacks, a parking pad, fencing, patio and garden areas.

    Feb. 2, 2026 · 1 page · 1.4 MB · PDS-Other Small Docs

    Download Site plan and context plan

Plans

  • Elevation drawings of the proposed structure from the south, west and north sides, including a planter wall and the entry, shown for the neighborhood meeting.

    March 13, 2026 · 1 page · 244 KB · PDS-Neighborhood Meeting

    Download Building elevations (south, west and north)
  • Exterior elevation drawing with a finish legend listing siding, trim, roofing, gutter, and fence stain materials and colors, plus height markers for the dwelling and accessory structure.

    Feb. 2, 2026 · 1 page · 431 KB · PDS-Other Small Docs

    Download Exterior elevations facing alley and west
  • Exterior elevation drawings showing finish legend, materials and colors such as fiber cement shingle, trim, standing seam metal roof, and cedar, with height call-outs.

    Feb. 2, 2026 · 1 page · 449 KB · PDS-Other Small Docs

    Download Exterior elevations, facing east and south
  • Architectural floor and roof plan sheet showing dwelling layout, rooms, setbacks, and roofing, with dimensions and a 6-foot wood fence along the property line.

    Feb. 2, 2026 · 1 page · 754 KB · PDS-Other Small Docs

    Download Floor plan and roof plan

Project narrative

  • Advisory concept review notes covering a detached 785 sq ft accessory dwelling unit in a historic overlay, with parking, walkway, and application requirements.

    Feb. 25, 2026 · 2 pages · 471 KB · PDS-Concept Review Summary Report

    Download Concept review summary for detached ADU

Notices

  • Staff concept review summary for a detached 785 sq. ft. ADU in a historic overlay, covering parking, access, required approvals and a neighborhood meeting requirement.

    March 13, 2026 · 2 pages · 471 KB · PDS-Neighborhood Meeting

    Download Concept review summary for detached accessory dwelling unit
  • Invitation to a March 11, 2026 neighborhood meeting on a proposed one-story, 785 square foot accessory dwelling unit, with applicant contact details and a sign-in sheet notice.

    March 13, 2026 · 1 page · 635 KB · PDS-Neighborhood Meeting

    Download Neighborhood meeting invitation for proposed accessory dwelling unit
  • Address list of property owners and occupants within about 90 feet of the project site, compiled by records staff on Feb. 27, 2026, for neighborhood meeting notices.

    March 13, 2026 · 4 pages · 625 KB · PDS-Neighborhood Meeting

    Download Neighborhood meeting mailing list (about 90-foot radius)
  • Four pages of existing-conditions photos of the house front, rear, back yard and alley, with captions noting the proposed unit's site context.

    March 13, 2026 · 4 pages · 648 KB · PDS-Neighborhood Meeting

    Download Site photos for accessory dwelling unit
  • Attendance sign-up sheet for a March 11, 2026 neighborhood meeting on a proposed one-story accessory dwelling unit, with most entries illegible in the scanned text.

    March 13, 2026 · 1 page · 122 KB · PDS-Neighborhood Meeting

    Download Neighborhood meeting sign-in sheet
  • Applicant's summary of the neighborhood meeting held for the proposal, listing the drawings shared, meeting attendance, and any feedback received.

    March 13, 2026 · 2 pages · 328 KB · PDS-Neighborhood Meeting

    Download Neighborhood meeting summary form

Application

  • Application form for an 786 square foot detached two-bedroom, one-bath accessory dwelling unit in the rear yard, with an added alley-access parking space, in an R-2 zone.

    Feb. 2, 2026 · 2 pages · 159 KB · PDS-Application

    Download Planning application form for detached accessory dwelling unit

Photos

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