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Planning project · Planning application

Approved: detached 810-square-foot ADU built alongside new single-family home

The city approved administratively a detached accessory dwelling unit of about 810 square feet with one bedroom, built alongside a roughly 1,900-square-foot three-bedroom house on a 0.41-acre lot. Plans were filed Nov. 13 and decided Jan. 21.

ApprovedPLN25-01003Filed Nov. 13, 2025West Boise · 9577 W Irving St+1 related filing
Site plan for Approved: detached 810-square-foot ADU built alongside new single-family 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

Detached ADU

Project name on file: 9577 W IRVING ST - ADU

Timeline

  1. Jan. 16, 2026

    Planning Applications: Project Entitled

  2. Dec. 2, 2025

    Pending Application Submittal: Planning Applications in Review

  3. Nov. 25, 2025

    Concept Review Complete: CR Complete - Type 2

  4. Nov. 17, 2025

    Concept Review Complete: Notes

    CR scheduled for 11/25

  5. Nov. 13, 2025

    Application Submittal: Online

  6. Nov. 13, 2025

    Application filed

Documents

Site plans

  • Prescriptive energy compliance table under the 2018 IECC and a list of currently adopted building codes with climatic and design criteria for the project.

    Nov. 13, 2025 · 10 pages · 7.9 MB · PDS-Other Small Docs

    Download Energy code compliance and building code criteria sheets

Plans

  • Lists the 2018 IECC insulation and fenestration values and the currently adopted building codes with climatic and geographic design criteria for the project.

    Dec. 1, 2025 · 10 pages · 9.7 MB · PDS-Other Small Docs

    Download Prescriptive energy compliance and building code criteria

Project narrative

  • Planning concept review summary for a single-family dwelling with an attached-garage accessory dwelling unit, with ADU standards and access requirements noted.

    Nov. 25, 2025 · 2 pages · 458 KB · PDS-Concept Review Summary Report

    Download Concept review summary report

Application

  • Application for a new single-family home with a detached accessory dwelling unit in an R-1C zone, filed by the applicant on behalf of the property owner.

    Dec. 1, 2025 · 2 pages · 158 KB · PDS-Other Small Docs

    Download Planning project application form
  • Permit application for a new single-family home with a detached ADU, listing the applicant contractor and project scope, with state contractor registration requirements noted.

    Dec. 1, 2025 · 6 pages · 537 KB · PDS-Other Small Docs

    Download Residential building permit application
  • Application for a new single-family home with a detached accessory dwelling unit in an R-1C zone, filed by the applicant with the owner listed as an LLC.

    Nov. 13, 2025 · 2 pages · 158 KB · PDS-Application

    Download Planning project application form

Photos

Correspondence

  • Applicant's letter describing a planned single-family home with a detached ADU on an approved R1-C lot, with utilities extended and construction slated for January to April 2026.

    Dec. 1, 2025 · 1 page · 32 KB · PDS-Other Small Docs

    Download Letter of explanation for proposed home and ADU
  • Veolia confirms water service is available to the project site under its current tariffs, with new domestic services required and the letter valid for twelve months.

    Dec. 1, 2025 · 1 page · 310 KB · PDS-Other Small Docs

    Download Veolia water serviceability letter

Other documents

  • Statement of legal interest

    Dec. 1, 2025 · 142 KB · PDS-Other Small Docs

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