Hi Larry,
Thank you so much for visiting the Disney Parks Moms Panel with your question.
Disney's Old Key West Resort is one of my favorite Disney Vacation Club Resorts. I love the relaxed atmosphere and spacious villas.
When I have stayed at Disney's Old Key West Resort in a one-bedroom villa, I have always been in a villa with the layout with two entrances to the bathroom, which is quite convenient. I did a little searching, and it appears that at least villas in buildings 30 and higher have this layout. I found this information on the unofficial site allears.net. You can find this by visiting their site, searching for "Disney's Old Key West Resort," and then looking at the Fact Sheet for this resort. I have always stayed in building 30 or higher when at Disney's Old Key West Resort.
I do suggest; however, that you make your request by simply describing what you are looking for. This way, if a particular location is not available, the cast member assigning rooms will know why you are asking for the buildings that you are. I recommend that you simply request a villa with two entrances to the bathroom. Please do know that while Disney will do their best to honor all requests, they are not guarantees.
I hope that this information is helpful for you, Larry! Have a wonderful time planning your vacation, and please do not hesitate to ask if you have any further questions.