What house has been the biggest?
 

Anyone know? Think it might be BB9, idk

BB3 2002 was the biggest house design.

The house was built specifically for the BB3 house and every house between then and BB8 got smaller and smaller and built within each other. In theory some of the BB3 house was still there when BB8 was on air, but they got rid of it all for BB9 which is why that one was a lot bigger than usual. They haven't really changed it that much since BB9.

I thought you meant in terms of housemates.

The BB3 house. There is a whole section of the garden that hasnt been used since BB3.