I’ve been running an open-table Dungeons & Dragons 5e campaign since September at my FLGS. One of the players earned enough loot that he wanted to buy a house in the city at the center of our campaign (Melvaunt, on the Moonsea, in Forgotten Realms, using 9 great modules from Baldman Games).
I searched for some house floor plans for RPGs, and most that I found looked like something from Zillow rather than something from a medieval setting. One from Wizards of the Coast even had indoor plumbing (not sure what level spell that is!).
Older houses had few rooms, and if they did have bedrooms there was a big bed or a few big beds. For those in North America, we don’t have any medieval construction, but if you get a chance to visit Colonial Williamsburg or Plimoth Plantation you’ll find better analogs. Having toured Paul Revere’s house, I turned to its floor plan as an example of an upper class home in Melvaunt: