De-annexation · Planning application
Garden City approves removing Plantation Island parcels from city limits
The city council approved a Garden City Police Department request to de-annex three properties, including Plantation Island, returning them to Ada County's jurisdiction. The decision on Dec. 8 can be appealed within 28 days.
From the filing
The application's description as it appears in City of Garden City's record. See the official record
The Garden City Police Department asks to remove three properties from Garden City's boundaries, returning them to Ada County's jurisdiction. The properties are two Ada County-owned parcels along N. Alworth St. and Plantation Island, owned by the Idaho Parks Foundation, plus surrounding unplatted land near the new Ada County park at Expo Idaho. The goal is one police jurisdiction for the park area, and staff recommends approval, with the City Council as final decision-maker.
A de-annexation request on behalf of the Garden City Police Department of parcels R7334160280 & R7334160261 currently zoned with Garden City's zoning designation of C-2 and parcel S0630315200 and surrounding un-platted land, commonly referred to as Plantation Island, currently zoned with Garden City's zoning designation of R-2.
Timeline
Dec. 8, 2025
Approved
Garden City City Council: Approved.
Dec. 8, 2025
Public hearing: Garden City City Council
Nov. 19, 2025
Public hearing: Garden City Planning and Zoning Commission
Documents
Staff reports
- Download Staff report on territory exclusion (de-annexation)
Garden City staff report recommending approval of removing two Ada County parcels and Plantation Island from city limits to align boundaries with service responsibilities.
Nov. 18, 2025 · 13 pages · 775 KB · Staff Report
Decisions
- Download City council findings of fact, conclusions of law and decision
Garden City Council's decision on the de-annexation of several parcels and adjacent right-of-way, including Plantation Island, after a Dec. 8, 2025 review.
Dec. 7, 2025 · 4 pages · 188 KB · Decision
- Download Signed findings of fact, conclusions of law and recommendation
The Garden City Planning and Zoning Commission's signed decision recommending approval or denial of the de-annexation application ANNFY2025-0001, dated Nov. 19, 2025.
Nov. 18, 2025 · 4 pages · 391 KB · Recommendation (decision)
Application
- Download De-annexation application form
Garden City de-annexation application form (ANN2025-0001 is excluded here) with applicant, property, and annexation-interest questions, plus an application checklist.
Yesterday · 21 pages · 4.1 MB
Correspondence
- Download Idaho DEQ agency comments
Idaho Department of Environmental Quality general comments on air quality, wastewater and recycled water rules that the city should consider for the de-annexation application.
Oct. 26, 2025 · 4 pages · 742 KB · Agency comment
- Download Idaho Transportation Department comments
Idaho Transportation Department reports no comments on the agency notice for this de-annexation application, sent by email on Oct. 21, 2025.
Oct. 20, 2025 · 4 pages · 1.3 MB · Agency comment
- Download City Engineer comment
Centurion Engineers senior engineer Joseph Canning replied to a City of Garden City agency notice for the de-annexation application, stating no comment.
Oct. 19, 2025 · 4 pages · 1.4 MB · Agency comment
