Corcoran grows beyond the Upper East Side, opening a downtown office. John Cheyney is credited with setting up the first sponge business in the area. Tarpons Springs residential community adds to the open business potential. Listing Courtesy of THE SHOP REAL ESTATE CO. Closing is the official transfer of ownership from the seller to the buyer. The downtown tarpon springs is a seperate airconditioned room has been sent. Light Medium.