In 1902, the Port Jefferson Company purchased the Oakwood estate with the purpose of creating an exclusive waterfront development of fifty houses to rival the communities of Long Island's traditional Gold Coast. The well-connected real-estate developer, Dean Alvord, was chosen as president of Belle Terre's estates, which was incorporated in 1906. The construction of the Belle Terre Club, a grandiose private members club at the center of the community, also occurred in 1906. A pair of stately pergolas were constructed as well, which overlook the waterfront.