Less. But I grew up (we moved a lot but the longest stretch house) was big - three stories and nine bedrooms. We didn't use the top floor much though, a couple lived there for a while with a makeshift kitchen after they left my Dad had a study up there, my older sister eventually moved up there, but there were three rooms that were pretty much empty and unused.
On the ground floor we had large square entrance hallway, livingroom, dining room big enough for a big table and grand piano, relatively small eat in kitchen (which my mum had painted orange walls and green ceiling - ah the 70s!), laundry room, loo and another reception room. First floor large landing leading to an unused conservatory, big playroom (would have been the master bedroom as there was an en suite), another bathroom, four other bedrooms, one which had a staircase direct to the kitchen so assume was a maids room back in the day. Then the top floor as stated. Full scary basement too with several rooms and big wheezy boiler! We used to leave the doors unlocked even when we went on holiday!
I have had big houses myself (not as big though) but now live in a cosy three bed plus small office terrace and it's perfect size for two (me and teen daughter, son no longer at home).