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Zoning certificate · Planning application

Two-story garage with studio apartment approved behind Boise home

The city approved a 462-square-foot garage with a 459-square-foot studio accessory dwelling unit above, replacing an old detached garage. Approval includes conditions requiring paved driveway access from the alley and barring commercial uses.

ApprovedCZC25-00226Filed Dec. 13, 2025West End · 2305 W Woodlawn Ave+1 related filing
Site plan for Two-story garage with studio apartment approved behind Boise home
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

The city approved a two-story detached building behind a future single-family home at 2305 W Woodlawn Ave in Boise. It has a 462 square foot garage on the ground floor and a 459 square foot studio accessory dwelling unit above, facing the alley. The whole building is about 1,055 square feet including a balcony deck.

Detached ADU and garage.

Project name on file: 2305 W WOODLAWN AVE

Timeline

  1. Jan. 20, 2026

    Appeal Period: Completed

  2. Jan. 9, 2026

    Review Complete: Completed

  3. Jan. 9, 2026

    Current Planning: Complete

  4. Dec. 23, 2025

    Current Planning: In Review

  5. Dec. 23, 2025

    Assign Reviewers: Completed

  6. Dec. 20, 2025

    Fee Payment: Payment Received

  7. Dec. 19, 2025

    Prescreen Review: Passed

  8. Dec. 18, 2025

    Prescreen Review: In Progress

  9. Dec. 18, 2025

    Application Submittal: ePlanReview

    Update missing field in Project Details to generate ePlan case.

  10. Dec. 13, 2025

    Application filed

Documents

Site plans

  • Site plan showing setback lines, existing and proposed garage with ADU above, landscaping, paving, and fencing changes, plus general notes and site area figures.

    Dec. 30, 2025 · 1 page · 1.4 MB · PDS-Maps and Drawings

    Download Site plan with sheet notes and area analysis

Plans

  • Photographs of the existing residence and detached garage elevations and surroundings, submitted with the zoning certificate application.

    Dec. 30, 2025 · 4 pages · 13.8 MB · PDS-Maps and Drawings

    Download Site context photos of existing residence and garage
  • Appliance and fixture list, code compliance notes, glazing and venting requirements, and a legend for a residential interior plan under a zoning certificate.

    Dec. 30, 2025 · 1 page · 622 KB · PDS-Maps and Drawings

    Download Sheet notes and general construction notes, residential plan
  • Architectural section sheet showing roof assembly, wall framing, insulation, deck framing and guard rail connections for a zoning certificate application.

    Dec. 30, 2025 · 1 page · 300 KB · PDS-Maps and Drawings

    Download Building section drawing with roof, wall and deck details
  • Architectural wall section detail for a new detached garage and accessory dwelling unit, showing roof, wall, insulation and foundation layers, dated November 2025.

    Dec. 30, 2025 · 1 page · 290 KB · PDS-Maps and Drawings

    Download Garage and ADU wall section drawing
  • Architectural wall section sheet for the new detached garage and ADU, showing roof, wall, insulation, and soffit assemblies, dated Nov. 2025.

    Dec. 30, 2025 · 1 page · 264 KB · PDS-Maps and Drawings

    Download Building section drawing, garage and ADU
  • Cover sheet set for a new detached garage with an accessory dwelling unit above, including abbreviations, general notes, code data, design team, and drawing index.

    Dec. 30, 2025 · 1 page · 605 KB · PDS-Maps and Drawings

    Download Sheet index and project information for detached garage with ADU
  • Site plan sheet listing demolition and new construction notes, including a new garage with ADU above, setback lines, and a site area analysis.

    Dec. 30, 2025 · 1 page · 1.4 MB · PDS-Maps and Drawings

    Download Site plan with sheet notes and area analysis
  • Application form for a detached accessory dwelling unit and garage, with property, applicant, owner and submittal checklist information.

    Dec. 30, 2025 · 3 pages · 208 KB · PDS-Maps and Drawings

    Download Zoning certificate application form for accessory dwelling unit
  • Drawing sheet from BGA Planning + Design showing window types, door schedule, abbreviations, and general notes for a new detached garage and ADU, dated Dec. 20, 2025.

    Dec. 30, 2025 · 1 page · 210 KB · PDS-Maps and Drawings

    Download Window types schedule and notes sheet
  • Sheet G0.2 from the architectural set for a new detached garage and accessory dwelling unit, marked as an IECC compliance page and issued for permit.

    Dec. 30, 2025 · 1 page · 1.1 MB · PDS-Maps and Drawings

    Download IECC compliance sheet G0.2 for detached garage and ADU
  • Framing sheet notes for a roof and deck, covering joist spacing, cantilever limits, soffit and attic venting, stair and guardrail specifications.

    Dec. 30, 2025 · 1 page · 305 KB · PDS-Maps and Drawings

    Download Second floor roof framing and deck details
  • Wall and roof section details for a new detached garage and ADU, dated 12/20/2025, with insulation, sheathing and siding callouts.

    Dec. 30, 2025 · 1 page · 264 KB · PDS-Maps and Drawings

    Download Building section drawing
  • Architectural building section sheet showing roof, wall, floor and deck construction details, with insulation and framing callouts, prepared by BGA Planning + Design.

    Dec. 30, 2025 · 1 page · 300 KB · PDS-Maps and Drawings

    Download Building section drawing
  • Colored exterior elevation drawings for the project, filed with the zoning certificate application; the text layer is mostly garbled, so details are unclear.

    Dec. 30, 2025 · 1 page · 1.1 MB · PDS-Maps and Drawings

    Download Colored exterior elevations
  • Exterior elevation drawings for a new detached garage with accessory dwelling unit, showing existing house and proposed structure from north, south, east and west sides.

    Dec. 30, 2025 · 1 page · 265 KB · PDS-Maps and Drawings

    Download Existing and proposed elevations, garage and ADU
  • Drawings of the existing house and detached garage's north, south, east and west elevations, prepared by BGA Planning + Design, for a new garage and ADU project.

    Dec. 30, 2025 · 1 page · 230 KB · PDS-Maps and Drawings

    Download Existing exterior elevations
  • Proposed south and west exterior elevations for a new detached garage with accessory dwelling unit, showing roof pitch, siding, guardrails and garage door, dated Nov. 2025.

    Dec. 30, 2025 · 1 page · 268 KB · PDS-Maps and Drawings

    Download Exterior elevations, south and west
  • Garage sheet with general notes, stair and landing details, and guardrail and handrail specifications, drawn by BGA Planning + Design.

    Dec. 30, 2025 · 1 page · 418 KB · PDS-Maps and Drawings

    Download Garage floor plans and sheet notes
  • Sheet A2.0 general and foundation notes covering concrete aprons, walks, mechanical pad slopes, dowels, rebar, bollard protection and code compliance.

    Dec. 30, 2025 · 1 page · 415 KB · PDS-Maps and Drawings

    Download Foundation plan, sheet A2.0 notes
  • Energy code (IECC) envelope compliance drawing for a new detached garage and accessory dwelling unit, prepared by BGA Planning + Design.

    Dec. 30, 2025 · 1 page · 1.1 MB · PDS-Maps and Drawings

    Download IECC envelope compliance sheet
  • Schedules for window types, door types, door hardware and safety glazing, with general notes for a new detached garage and ADU, dated Dec. 20, 2025.

    Dec. 30, 2025 · 1 page · 210 KB · PDS-Maps and Drawings

    Download Window and door schedules with general notes
  • Sheet notes listing kitchen and laundry appliances, water heater, plumbing fixtures, and general construction and glazing notes, dated Dec. 20, 2025.

    Dec. 30, 2025 · 1 page · 622 KB · PDS-Maps and Drawings

    Download Utilities and appliance sheet notes
  • Wall bracing schedule and general notes for the building, including braced wall line calculations, design criteria, and construction requirements.

    Dec. 30, 2025 · 1 page · 368 KB · PDS-Maps and Drawings

    Download Wall bracing plan
  • Architectural wall section detail showing roof, wall assembly, insulation, sheathing, siding and foundation for a new detached garage with accessory dwelling unit, dated Dec. 20, 2025.

    Dec. 30, 2025 · 1 page · 290 KB · PDS-Maps and Drawings

    Download Wall section drawing for detached garage and ADU
  • Cover sheet for the new detached garage with ADU plans, listing project scope, code data, design team, and drawing index for CZC25 application.

    Dec. 30, 2025 · 1 page · 605 KB · PDS-Other Small Docs

    Download Project information and cover sheet

Project narrative

  • Applicant's letter describing the proposed new garage with ADU above, its reconfigured placement after Concept Review, design intent, and size relative to the existing garage.

    Dec. 30, 2025 · 2 pages · 461 KB · PDS-Letter of Intent

    Download Letter of intent for detached garage with ADU

Decisions

Notices

  • City notice that staff approved an accessory dwelling unit and an oversized accessory structure in a compact residential zone, with an appeal deadline of January 19, 2026.

    Jan. 8, 2026 · 2 pages · 785 KB · PDS-Legal Notice

    Download Notice of administrative approval

Application

Photos

Correspondence

  • ACHD reports no street improvements required and lists conditions: traffic impact fee, driveway approach permit, and right-of-way permits for any work.

    Jan. 9, 2026 · 3 pages · 186 KB · PDS-Agency Comments

    Download Ada County Highway District comments
  • Fire Marshal approves the detached garage with a second-story ADU as proposed, requiring a heat detector interconnected with smoke detectors in the attached garage.

    Jan. 9, 2026 · 1 page · 166 KB · PDS-Agency Comments

    Download Boise Fire Department comments
  • Parks and Recreation reviewed the application with Community Forestry and has no comments or recommendations.

    Jan. 9, 2026 · 1 page · 57 KB · PDS-Agency Comments

    Download Boise Parks and Recreation comments
  • Veolia requires a separate service line and meter for the new ADU structure and asks for a site plan submittal for review and approval.

    Jan. 9, 2026 · 1 page · 301 KB · PDS-Agency Comments

    Download Veolia Water Idaho comments on water service
  • Veolia Water Idaho reports system pressure and hydrant flow for the site, to be attached to fire sprinkler design plan sets.

    Dec. 30, 2025 · 1 page · 132 KB · PDS-Other Small Docs

    Download Veolia water pressure and fire flow letter

Other documents

  • Noticing radius map

    Jan. 8, 2026 · 524 KB · PDS-Maps and Drawings

  • Transmittal sheet

    Dec. 31, 2025 · 100 KB · PDS-Transmittal Agencies

  • Statement of legal interest

    Dec. 30, 2025 · 128 KB · PDS-Statement of Legal Interest

  • Submittal checklist

    Dec. 30, 2025 · 867 KB · PDS-Submittal Checklist

  • Submittal checklist

    Dec. 30, 2025 · 869 KB · PDS-Submittal Checklist

  • Receipt

    Dec. 20, 2025 · 135 KB · PDS-Receipts

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