Trustees open long-term review of split parcels and nonconforming lots in Mesilla Park and surrounding areas

Trustees spent an extended portion of their June 8 meeting discussing a recurring planning issue: parcels split by historic drains, county parcel map practices and prior annexations that have left many homes legally nonconforming under current zoning.

Community and planning staff explained examples where a drain installed decades ago or county parcel mapping left a single legal parcel split into two taxable pieces, or where an annexed subdivision was granted R-1 zoning even though lots did not meet current minimum sizes. Staff described the complexity this creates for residents who want to add small structures, sheds or make routine improvements but may face variances or other requirements because lot dimensions no longer meet current code.

Trustees and staff discussed administrative approaches: (1) require owners seeking development to apply for a variance, (2) create a new or conditional zone to recognize smaller historic-lot patterns, or (3) create an administrative process triggered when deeds are recorded that would prompt staff review with the assessor and clerk to handle apparent tax/account splits. Several trustees emphasized fairness for homeowners who "inherited" the condition through historical processes, while others cautioned that relaxed rules should be applied consistently across the town.

Staff said they will continue researching deed and survey histories and recommended work sessions with trustees to set policy direction before any ordinance changes. The board did not adopt a new rule at the meeting but directed staff to return with recommended administrative processes and potential code language.