Planning commission backs city-initiated change raising acreage threshold for major general-plan amendments

The Kingman City Planning and Zoning Commission voted unanimously to recommend City Council approval of GP 25-0001, a city-initiated amendment that raises acreage thresholds for major general-plan amendments and requires council hearings within 12 months of application.

Staff presented the text amendment as a cleanup to align the city's adopted General Plan with the municipal code. Heather, a city planning staff member, told commissioners the amendment would change the acreage threshold that triggers a major general-plan amendment from 40 acres to 320 acres when residential land is being changed to another residential designation, and from 60 acres to 320 acres when residential land is being changed to a nonresidential designation. The amendment also would require that applications be presented to City Council within 12 months of the date of application.

The changes stemmed from an inconsistency staff identified after voters ratified the city’s 2040 General Plan in November 2024. Heather said the earlier plan and the municipal code contained different implementation provisions, and the amendment is intended to make the general plan the sole implementation document and to clarify timing and thresholds.

Commissioners asked how staff settled on 320 acres. Heather said the City Council directed staff on Jan. 7 to return with the 320-acre threshold and that staff reviewed approaches used by other rural and semi-rural jurisdictions. Jason, the city director, said that many rural communities use a half-section (about 320 acres) or a full section (640 acres) as a threshold and that the half-section aligned better with potential large developments in Kingman, citing forthcoming projects near Rattlesnake Wash as examples. Jason also told the commission that the 12-month hearing requirement responds to a 2023 change in state law that measures the processing clock from the date of application rather than a once-per-year calendar schedule.

Commissioner Goss and others expressed concern that switching to an acreage-based threshold and increasing the size that qualifies as a minor amendment could reduce the commission’s opportunity to review some large proposals and might shift oversight. Commissioners were reassured by staff that a rezone would follow a general-plan amendment and that rezones still require review and public notice, and by the clarification that major amendments retain different noticing and timelines.

Staff said a neighborhood meeting was held April 2 and that a public notice was posted in the Kingman Minor on March 19 in accordance with state statute. No agency comments or public testimony were received at the commission hearing. Based on the findings presented, staff recommended that the Planning and Zoning Commission recommend the amendment to City Council for approval.

Votes at a glance - Approval of minutes for March 12, 2025: motion approved by roll call (7–0). - GP 25-0001, Minor General Plan text amendment (city-initiated): motion to recommend approval passed by roll call (7–0). The motion would amend acreage thresholds as described above and require City Council hearings within 12 months of application.

The commission had no public speakers on the item and closed the public hearing before deliberations. The commission also heard brief staff updates and had no additional reports or requests for future items before adjourning.