Carrollsburg, A Condominium is partnering with Casey Trees to plant urban native trees on the more-than-50-year-old property. The Carrollsburg complex of 425 units (387 in three high-rise buildings, plus 38 townhouses) sits on 11 acres of manicured lawns trimmed with beautiful trees and flowers, and is the largest original green space in the Southwest DC community. With all the development in Southwest, we want to grow and enhance our green space.