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Planning project · Planning application

Two backyard accessory units and a second story proposed for single-family home

The plan would add two accessory dwelling units behind the existing house, bringing the lot to three homes, and put a second floor on the main house. The application is in administrative review, and planners may discuss the size of the two-story unit.

In reviewPLN26-00253Filed March 11, 2026Southeast Boise · 2177 S Illinois Ave+2 related filings
Site plan for Two backyard accessory units and a second story proposed for 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

Two ADUs

Project name on file: 2177 S ILLINOIS AVE

Timeline

  1. July 23, 2026

    Pending Application Submittal: Planning Applications in Review

    Updated Via Script

  2. July 15, 2026

    Concept Review Complete: CR Complete - Type 2

  3. July 6, 2026

    Concept Review Complete: Corrections Required

    Please upload a detailed project description. This is a different project than the previous proposal.

  4. July 2, 2026

    Concept Review Complete: Notes

    Reopen PLN at Concept Review per G. Flores.

  5. June 12, 2026

    Planning Applications: Project Entitled

  6. March 20, 2026

    Planning Applications: Generate Additional Application

  7. March 20, 2026

    Pending Application Submittal: Planning Applications in Review

  8. March 20, 2026

    Concept Review Complete: CR Complete - Type 2

  9. March 11, 2026

    Application Submittal: Online

  10. March 11, 2026

    Application filed

Documents

Site plans

  • Revised site plan sheet showing a single-page floor layout with room dimensions, window and door schedules, patio, awning and garage door notes.

    July 15, 2026 · 1 page · 174 KB · PDS-Other Small Docs

    Download Updated site plan
  • Floor and elevation-level annotations showing window and door schedules, garage door openings, stone veneer, patio, awning and room dimensions for the revised plan.

    July 13, 2026 · 1 page · 209 KB · PDS-Other Small Docs

    Download Updated site plan
  • One-page site plan showing an 18-foot-wide alley, a raised planter, and room layout with bed and bench dimensions.

    July 1, 2026 · 1 page · 134 KB · PDS-Other Small Docs

    Download Site plan
  • Conceptual site plan showing a proposed 1,402 SF primary home, a 840 SF two-story ADU, a two-car garage, and conversion of an existing garage to living space.

    March 20, 2026 · 1 page · 259 KB · PDS-Other Small Docs

    Download Updated conceptual site plan, version 1.1
  • Conceptual site plan showing a new 1,402 SF primary home, a 840 SF two-story ADU, and conversion of an existing 380 SF garage to living space.

    March 11, 2026 · 1 page · 285 KB · PDS-Other Small Docs

    Download Proposed site plan, conceptual v1

Plans

  • Sheet listing demolition scope: hatched walls, interior doors, plumbing fixtures, millwork, flooring, and exterior windows and front door to be removed.

    July 15, 2026 · 1 page · 86 KB · PDS-Other Small Docs

    Download Demolition plan
  • Revised main house floor plan and elevations for the second-story addition and remodel, showing window and door schedules, room dimensions, and fixtures.

    July 8, 2026 · 1 page · 351 KB · PDS-Other Small Docs

    Download Updated main house floor plan and elevations for second-story addition and remodel
  • Floor plan and elevation drawings for a detached accessory dwelling unit of about 886 square feet, showing two bedrooms, ceiling heights and window placements.

    July 1, 2026 · 1 page · 183 KB · PDS-Other Small Docs

    Download Two-story detached ADU floor plan and elevations
  • Floor plan for a 501 sq ft detached accessory dwelling unit with a one-car garage, showing room dimensions, wall heights and vaulted ceilings.

    July 1, 2026 · 1 page · 188 KB · PDS-Other Small Docs

    Download Detached ADU floor plan and elevations
  • Elevation drawing for the main house remodel; the extracted text shows only dimension callouts, so details are not readable.

    July 1, 2026 · 1 page · 328 KB · PDS-Other Small Docs

    Download Elevations for main house remodel
  • Floor plan of the main house remodel showing rooms such as a pantry and bedroom, with main floor 1,063 sq ft, upper floor 1,235 sq ft, and 2,298 sq ft total living area.

    July 1, 2026 · 1 page · 130 KB · PDS-Other Small Docs

    Download Lower floor plan, main house remodel
  • Floor plan of the upper level of the main house showing bedrooms, a flex room, a den, a deck and window locations with room dimensions.

    July 1, 2026 · 1 page · 96 KB · PDS-Other Small Docs

    Download Upper floor plan, main house remodel

Project narrative

  • Advisory concept review for a second-story addition and two backyard ADUs on an existing legal non-conforming single-family home, with notes on required applications and parking access.

    July 15, 2026 · 3 pages · 455 KB · PDS-Concept Review Summary Report

    Download Concept review summary report
  • Describes a second-story addition of 1,295 sq ft to the existing home for a 4-bed, 3.5-bath layout, plus two detached two-story 886 sq ft ADUs, submitted by Mode Homes.

    July 13, 2026 · 1 page · 72 KB · PDS-Other Small Docs

    Download Updated project description
  • Describes a second-story addition to the primary home, a detached garage with an ADU above, and a separate two-story ADU.

    July 6, 2026 · 1 page · 73 KB · PDS-Other Small Docs

    Download Updated project description
  • Advisory concept review notes for a proposed garage conversion, new two-car garage, and ADU at the rear alley, covering required applications, parking, and ADU size limits.

    March 20, 2026 · 2 pages · 469 KB · PDS-Concept Review Summary Report

    Download Concept review summary report
  • Describes converting the attached garage to a laundry room and master suite, building a detached two-car garage and a 2-story 840 SF accessory dwelling unit, all accessed from the alley.

    March 11, 2026 · 1 page · 74 KB · PDS-Other Small Docs

    Download Project description for garage conversion and ADU

Application

  • Application to convert an existing garage to living space and build a new two-car garage and accessory dwelling unit at the rear of the lot, in the R-1C zone.

    March 11, 2026 · 2 pages · 158 KB · PDS-Application

    Download Planning project application form

Correspondence

  • Email exchange with an engineering firm assessing whether the existing wall and footing foundation can support a second-story addition, and what added footings may be needed.

    July 15, 2026 · 2 pages · 278 KB · PDS-Other Small Docs

    Download Structural engineer email on foundation for second-story addition

Nearby

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