Residential sales have begun at Glass House Boca Raton, which is being billed as the first modern glass building in downtown Boca Raton. Located at 280 East Palmetto Park Road, the 10-story tower will offer 28 luxury residences with ocean, Intracoastal and golf course views. Prices range from $2.5 million to $6.9 million. Douglas Elliman Development Marketing is the exclusive sales and marketing provider.