The Des Moines City Council has postponed a discussion regarding the proposed demolition of Highland Apartments until June, the city announced today. The three-story brick building at 3524 Sixth Ave. is among seven included on the Des Moines Heritage Trust’s “most endangered” list that was recently released. The council had been scheduled to discuss the building’s future at its meeting today. Invest DSM purchased the property in March and is proposing to raze the 108-year-old building and construct a new mixed-use structure. “This extension will allow potential developers additional time to assess the structure and to determine if it is economically feasible to rehabilitate the building,” Amber Lynch, executive director of Invest DSM, said in a news release. For project information and eligibility criteria, interested developers should contact Invest DSM at Info@InvestDSM.org..