You won't know if it's a dedicated or lock-off until you enter the room. You could request either, but there's no guarantee that the room assigner knows what room numbers are dedicated and which are lock-offs.
The lockoff door at BCV is near the entrance to the villa. It won't disturb you at all. Other than that door, there is no difference in one bedrooms. There are only 20 dedicated one bedroom villas. There are 74 lockoffs.