Hi Kristin,
You have excellent taste in resorts!
Disney's Beach Club Resort is a breezy, beautiful retreat nestled along Crescent Lake. You can't beat its location. It's so nice to be able to walk to Epcot and Disney's Hollywood Studios from your hotel. And Stormalong Bay, the delightful 3-acre resort pool, makes you feel like you really are at the beach.
Disney's Beach Club Villas are in a separate building, but that building is just a few steps away from Disney's Beach Club Resort. It would only take a minute or two to walk between those two buildings. Although no request is guaranteed, I recommend that you ask for a room that is close to the other building when you make your reservation. Disney will make every effort to honor your request so that your family's rooms will be as close together as possible.
Another option would be to book a deluxe studio at Disney's Beach Club Villas instead of a standard guest room at Disney's Beach Club Resort. The amenities of the studio are similar to those of the standard guest room and that would place your family's two rooms in the same building.
Let us know if you have any additional questions as you plan your trip. We'd be happy to help.
Wishing you many magical memories,
Jill