CO HB1308

Summary of HB 26-1308: Lot Splitting Approval by Subject Jurisdictions

• Requires municipalities with 1,000+ residents within metropolitan planning organizations to approve lot splits through an administrative process starting December 31, 2027, allowing one residential lot to be divided into two lots.

• Original lots must be at least 2,000 square feet, allow residential use, have no prior lot splits, and the smaller resulting lot must be at least 40% of the original lot's area.

• Exempts lots not served by domestic water/sewage systems, those using wells or septic tanks, lots in airport influence areas, historic properties outside historic districts, and properties in common interest communities created before December 31, 2027.

• Mortgage lenders must provide written consent before a lot split can be approved, with consent recorded in county records and potentially subject to lender-specified conditions.

• Jurisdictions retain authority to enforce infrastructure standards, life safety codes, environmental regulations, impact fees, and historic district requirements on split lots.