Before you downsize, measure each room and the route in, from the doorway to...

https://tango-wiki.win/index.php/How_Much_Space_Do_I_Need_for_Walkways_in_a_Small_Apartment%3F

Before you downsize, measure each room and the route in, from the doorway to the elevator. Then decide what to keep, store, sell, or donate. A little planning helps your furniture fit without blocking the walkways you use every day.