My house definitely got an addition put on later in its life.
The guy who put an addition onto the house did not know anything either.
The add on space in the house is just a touch lower than the rest of the home so you have to watch the step. The room is also very weirdly shaped. You can’t fit a bed, couch or any style of furniture in their comfortably. My husband and I treated the room like a storage space for years. Once we had kids the room had to be put to use though. I decided to make it a bedroom, but be smart about it. I had to get a custom furniture store to build everything. The bed frame had to be a special length and width in order to fit through the door and into the room. The dresser had to be the right height or it would hit the ceiling. I also had custom made shelving units that did not stick out too far or it would take up all the walkway space. I fully expected the room to be horrible and my child to hate it. Well I have to say that the room is now the best one in the house. Yes, it is a little weird in shape and height, but the furniture makes it awesome. Every furniture piece is perfectly made and convenient. The condition of the wood is gorgeous and the furniture has so many neat features on it. I sort of want to kick my child out of the room so I can have it.