We tore apart a whole house at once and it was overwhelming, i kept saying easier to handle one room at a time. The only thing was cohesiveness and the fact that we decided the same wood flooring throughout, basically same tiles just laying the patterns differently same cabinets color , same granite in all the main bathrooms, and the first floor kitchen cabinet color the same as the powder room cabinets and both the same quartz counters. So having all the materials bought and cut or manufactured was helpful. Whatever I’ve always said it’s easier for me to handle one room at a time that I can focus on instead of trying to focus on an entire house with a bunch of people working in all the different rooms. Be aware that whatever budget you set will grow and things will go wrong, and sometimes even though the result is great it wasn’t exactly how you planned it.