The Haven Group, Inc. On December 30, 2005, Wind River Holdings acquired The Haven Group, a leading custom and semi-custom home builder. Operating under the Haven Custom Homes™ brand, the company is a leader in the innovative application of modular construction to the custom home building market. Haven has the capability to build from commissioned architect’s designs or to work from the Haven Collection of plans from leading national architects. Modular construction offers the benefit of climate controlled construction. A Haven home is built indoors – free from the wind, rain and mud of a construction site. The finished Haven home meets the quality standards that custom home builders demand. Haven’s executive offices are located at 1302 Concourse Dr, Suite 202, Linthicum, MD 21090