About 726 square feet, or roughly what I grew up in with a family of 5. Although there are many reasons houses are expensive zurzeit, one of the reasons is that starter homes are now starting around 1500 square feet. We tried to buy an upscale 1000 square foot townhome and it was pretty much impossible to find. Builders won't even look at building under 1400 square feet. We ended up in 1540 square foot two bedroom with three freakin bathrooms and a master bedroom 32 feet long. I mean seriously??? We have talked to many in our mid 50 age group that would love to find an upscale 900 to 1000 square foot home. Tough to find. Very common in Europe though.