Coldwell Banker Residential Brokerage offers a range of property buying and selling services. Its services include residential real estate marketing, property management, relocation support and mortgage lending assistance. The agency provides a variety of properties, including land lots, single-family apartments and town houses. Coldwell Banker Residential Brokerage is owned and operated by NRT, one of the largest residential real estate brokerage companies in the United States. NRT was founded in 1997 and is a subsidiary of Realogy Corporation. It offers services in more than 30 metropolitan markets through over 1,000 sales offices. Coldwell Banker Residential Brokerage maintains an office in Hamden, Conn.