The Boardwalk Villas are owned by the Disney Vacation Club and its members. These range from studios with small kitchenettes, to three bedroom grand villas with full kitchen. Some of the rooms are available for rent by others, but most of them are occupied by Disney Vacation Club members.
The Disney Vacation Club also has WDW villas at Old Key West, Wilderness Lodge and, in Sept, Beach Club. DVC also has villas at Vero Beach and Hilton Head. You can find out about these locations on the DVC board or at Disney DVC site.