A weird thing I find incredibly helpful for art/writing.
Eplans.com is a website that sells blueprints for houses.
This might not seem that helpful but if you want a characters house you can make selections based on what sort of house you want them to live in.
Then browse through the results and find the house you want. Then you can view the blueprints and have a room layout for that house, which can help with visualising the space they live in.
It makes describing generic homes so much easier.
Friendly reminder that anyone born between 1985-1998 didn’t get their hogwarts letter because Voldemort’s ministry wiped out the record of muggleborns