Large Lot Subdivision

Project Summary: Proposal to amend the Teton County Land Development Regulations (LDRs) pursuant to Wyoming State Statute 18-5-316, Requirements for Large Acreage Subdivision Permits. This would remove the blanket exemption for the subdivision of parcels larger than 35 acres, creating new submission and analysis requirements in order to increase transparency on the condition, development potential, and accessibility of subdivided parcels.

  • These changes include standards for the following categories:
    • Map of survey
    • Purchasing documents
    • Sewage 
    • Utility connection
    • Water supply
    • Ingress and egress
    • Financial resources
    • Water rights
    • Covenants
    • Land conditions and conservation
    • Mineral rights

Parcels remain exempt through the Exempt Land Division Process if:  the subdivision includes ten or fewer new parcels and the parent parcel was platted on or before July 1, 2008, or the parcels are over 140 acres. 

For more information or to receive email updates on this project, please contact Associate Long-Range Planner Erin Monroe at 

  1. News & Highlights

November 15, 2022: Staff Withdraws the Amendment

Staff has withdrawn this application for the time being. Please contact Erin Monroe at for more information.

September 30, 2022: Proposed Amendment Revised

Following the September 12 hearing, the proposed amendment as shown in the redline, was edited. The two changes included:

  1. Sec. 8.5.6.D.3 - Staff requested edit at the PC hearing to clarify responsibility.
    • Previously: A study by the County Engineer on groundwater may be required
    • Revised: A groundwater study submitted by the applicant if required by the County Engineer
  2. Sec. 8.5.4.B.8 - Staff added language after the PC hearing to clarify that large acreage boundary adjustments may continue to be processed under the EXD application.
    • Addition: A boundary adjustment between existing and unplatted parcels which are 35 acres or larger, subject to all parcels remaining over 35 acres and the requirement that ingress and egress and utility easements shall be provided to each parcel by binding and recordable easements of not less than 40 feet in width to a public road unless specifically waived by the grantee or transferee in a binding and recordable document.

The revised redline / amendment request will be reviewed at the BCC hearing scheduled for October 18, 2022.

September 12, 2022: Planning Commission Recommends Approval

At the September 12, 2022 Planning Commission hearing, the amendment was unanimously recommended for approval, with Kasey Mateosky absent. The Board of County Commissioners hearing for this item will take place at 9:00 a.m. on October 18, 2022, at the same location as the Planning Commission hearing.

August 10, 2022: Draft LDR Amendments Available for Public Review

County Planning Staff have produced draft LDR text amendments (PDF) of the new regulation for large acreage parcel subdivision (35-140 acres) being proposed.

The Teton County Planning Commission public hearing for this proposed change will take place at 6:00 p.m. on September 12, 2022, in the Commissioners Meeting Room of the Teton County Administration Building at 200 S. Willow St. in Jackson, Wyoming.