565 Union Street 565 Union Street is a 7-family walk-up building located in the sought-after Carroll Gardens section of Brooklyn. Offering a mix of spacious, light-filled units, this property is ideally situated in one of the borough’s most desirable neighborhoods—known for its tree-lined streets, vibrant dining scene, and excellent access to public transportation. With strong rental demand and solid income potential, this building represents a rare opportunity for investors seeking both stability and long-term growth. Its prime location ensures consistent tenant interest and enduring value, making it a standout asset in today’s market. The property includes 4, 500 sq ft of unused air rights, presenting a valuable opportunity for builders to expand or redevelop and unlock even greater potential. Currently vacant and ready for its next owner, this building offers immediate flexibility for renovation, leasing, or development.