The Land Use, Transportation and Infrastructure Committee on Monday voted to forward to City Council a proposed landmark designation for the McAllen Coolidge House at 510 South Garfield Street in the Belcaro neighborhood.

Abigail Christman of Community Planning and Development presented the nomination, describing the house, built in 1956, as an intact example of the Usonian residential style associated with Frank Lloyd Wright and as a likely surviving Denver residence by architect Gary (Garry) Dion. Christman said the property meets three Denver landmark criteria: architectural style (criterion C), recognized architect (criterion D) and cultural significance for representing midcentury domestic ideals (criterion H). “You step back in time when you step inside the home,” Christman said, describing the residence’s open plan, extensive glass walls to the rear yard and deep overhangs.

Christman told the committee the property retains high integrity with few alterations and that the nomination’s period of significance runs from the construction date in 1956 to about 1970. The nomination packet documents original drawings, material integrity, and the house’s relationship to broader local examples of Usonian‑inspired midcentury development such as Arapahoe Acres.

Mark (Thomas) Kulish, who said he represents the estate of his mother and is a family member of the current owners, attended and offered no additional comments beyond supporting the staff presentation. Councilmembers praised the owner‑initiated nomination during committee remarks.

Committee Member Paul Cashman moved to forward the nomination to the full City Council; the motion was seconded by Chris Hines and the committee unanimously supported forwarding the designation. The Landmark Preservation Commission had unanimously recommended the designation at its review.

If the City Council approves the nomination, the property would be added to the city’s register of historic properties and would become subject to Denver’s landmark review standards for exterior changes. No financial incentives or preservation grants were decided at the committee meeting; those would be separate processes if the designation is approved.