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Detached backyard accessory dwelling approved for existing single-family home

The city approved a one-bedroom, one-bath unit of under 500 square feet on a 0.28-acre lot with an existing home. No added parking is required. Staff approved it July 8, 2026, without a public hearing.

ApprovedPLN25-01089Filed Dec. 10, 2025Hillcrest · 3502 W Catalina Rd+1 related filing
Site plan for Detached backyard accessory dwelling approved for existing single-family home
Site plan from the application documents.
Pin at the reported location; the shaded outline is the primary parcel (Ada County).

About this application

Detached ADU

Project name on file: 3502 W CATALINA RD - ADU

Timeline

  1. Two days ago

    6 documents added

  2. Feb. 27, 2026

    Planning Applications: Project Entitled

  3. Dec. 29, 2025

    Pending Application Submittal: Planning Applications in Review

  4. Dec. 29, 2025

    Concept Review Complete: CR Complete - Type 2

  5. Dec. 23, 2025

    Concept Review Complete: Notes

    Emailed for CR 12/23

  6. Dec. 10, 2025

    Application Submittal: Online

  7. Dec. 10, 2025

    Application filed

Documents

Site plans

  • Schematic site plan for a 500 sq ft, one-bedroom detached ADU alongside an existing single-family home, with zoning setbacks, height, area and parking notes.

    Dec. 10, 2025 · 1 page · 60 KB · PDS-Other Small Docs

    Download Site plan for proposed detached accessory dwelling unit

Plans

  • East, north, west and south elevation drawings for a proposed accessory dwelling unit, with notes on grading, cement board lap siding and slab and foundation details.

    Dec. 10, 2025 · 1 page · 71 KB · PDS-Other Small Docs

    Download Elevation views of proposed ADU
  • Single-page floor plan of a proposed accessory dwelling unit showing a living area of about 500 sq ft, with bedroom, bath, kitchen, closet and room dimensions labeled.

    Dec. 10, 2025 · 1 page · 246 KB · PDS-Other Small Docs

    Download Floor plan of proposed ADU

Project narrative

  • Staff notes on a proposed under-500 s.f. detached accessory dwelling unit, covering setbacks, height, walkway materials and design compatibility.

    Dec. 29, 2025 · 2 pages · 454 KB · PDS-Concept Review Summary Report

    Download Concept review summary for detached ADU

Application

  • Application form for a detached accessory dwelling unit (ADU) on an R-1C zoned residential parcel, to house the homeowner's aging mother.

    Dec. 10, 2025 · 2 pages · 158 KB · PDS-Application

    Download Planning project application form

Other documents

  • PDS-Other Small Docs - PROJECT ADDRESS AND DESCRIPTION OF PROPOSED ADU

    Dec. 10, 2025 · 12 KB · PDS-Other Small Docs

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