According to Newsgirl News in Vancouver, construction of the Swan house has begun (the cast is expected to wrap in Baton Rouge and head to Vancouver for filming in late February):
Construction started early this morning in Kerry Park in Surrey. Twilight fans will be thrilled to learn that filming will return to British Columbia mid February. The Swan House was a location fans flocked to see during filming of both New Moon and Eclipse. The house is just a shell of a house with no interior decoration or structural design. The art department hangs the drapes and puts a lamp in the front window but the interior of the house is an empty shell. The interior shots of “The Swan House” are filmed on a sound stage.