Code amendment · Planning application

Canyon County adopts smaller Middleton growth boundary

The county approved Ordinance 25-020 on Nov. 24, redrawing the land outside Middleton city limits where the city plans to grow and eventually annex. The new map is smaller than the city requested, mainly because its sewer and water systems cannot yet serve a larger area, and it approves no specific buildings.

ApprovedOR2025-0010Canyon County

Location

This filing changes the city's rules rather than a specific site, so there's nothing to map.

From the filing

The application's description as it appears in Canyon County's record. See the official record

The City of Middleton asked Canyon County to change the boundary of its area of impact, the land outside city limits where the city expects to grow and eventually annex. On November 24, 2025, the Board of County Commissioners adopted a smaller boundary map than the city originally requested, mainly because Middleton's sewer and water systems cannot yet serve the larger area. The change applies to the county's ordinance and does not approve any specific buildings or housing.
Project name on file: Middleton Area of City Impact

Timeline

Nov. 24, 2025
Public hearing: Canyon County Board of County Commissioners
Nov. 24, 2025
Approved
Canyon County Board of County Commissioners: Approved.
Oct. 29, 2025
Hearing continued: Canyon County Board of County Commissioners
The Board of County Commissioners continued its October 29, 2025 hearing to November 24, 2025.

Documents

Decisions

Board of County Commissioners order adopting a revised Area of Impact boundary map for City of Middleton and amending the county code's Areas of City Impact chapter.
Nov. 23, 2025 · 6 pages · 735 KB · Decision
Download Findings of fact, conclusions of law and order
Ordinance amending the county code to confirm and modify the City of Middleton's area of impact boundary, effective after recording.
Nov. 23, 2025 · 8 pages · 1.4 MB · Decision
Download Middleton area of impact ordinance

Correspondence

Transmittal from Middleton's planning official describing the revised area of impact map, a version with subdivisions added, and a sewer slide for the Nov. 24 hearing.
Nov. 23, 2025 · 4 pages · 12.9 MB
Download Revised AOI map proposal and transmittal email
Transmittal from Middleton's planning official describing the revised area of impact map, a version with subdivisions added, and a sewer slide for the Nov. 24 hearing.
Nov. 23, 2025 · 4 pages · 12.9 MB
Download Revised AOI map proposal and transmittal email