Uri Chaitchik's Casco Development secured a $50 million loan for a planned condominium building near the High Line, according to documents filed with the city today. The property, at 540-548 West 21st Street, will be the future site of a 20-story, 172,000-square-foot mixed-use building. Permits for the site, which were filed in December, call for 128,000 square feet of residential space divided between 38 units. The structure will also have retail space on the ground [...]