(I realize this isn’t directly related to your question, but your question got me thinking and I had to write down my thoughts on it )
I recently read a book about game design called The Art of Game Design by Jesse Schell (great book). In it, Jesse says that when you’re creating 3d spaces you should proportion things like rooms and furniture differently than the rest of your world. Because of how the player is viewing the game (first person or third person) details like room size, furniture, and objects look off, even if they perfectly match the proportions of the rest of your world. He says if your game is being played in third person, you should increase the size of your rooms and objects slightly. If your game is being played in first person you should decrease the size of your rooms and objects slightly.
One of the games he has worked on is a game called Toontown, and you can see this philosophy throughout the third person Toontown world. You could google things such as “Toontown Estate House” or “Toontown furniture” and find pictures of the furniture and rooms, but it’s an older game and I couldn’t find a great picture showing the contrast between a toon and furniture. Suffice it to say, the furniture and rooms are 1.5x - 2x larger than they should be when you compare them to the toons. Part of this is to add to the cartoony, fun feel of the game, but it’s also to help keep the player from feeling crowded or claustrophobic when they’re moving around the rooms.
Not everything needs to follow the conversions exactly, give them some leeway when needed. Just something to think about.