Is 100m^2 really considered cramp for a 3 bedroom? Admittedly I'm from the uk which is famed for our small home sizes. But I've been looking at 2 or 3 beds recently and anything over 80m^2 felt huge.

In my opinion it is. Those would have to be very small bedrooms.

I lived in a 180 m^2 3 bedroom (well 2 bed and 1 office) and it seemed about the right size for a family.

I've also lived in a 60 m^2 2 bedroom and it was cramped.

If I have more space I'd rather have an aditionnal room, a bigger kitchen and a second bathroom than bigger bedrooms.

I agree, especially bathrooms considering how often you use it.

But with 3 bedroom places under 1,000 sq ft, the rooms are too small for even a Queen sized mattress, let alone a King.

The 2 extra bedrooms are for kids, usually. They don't need big mattresses.

Having 3 smaller bedrooms is way better for a family than US style apartments where it's almost impossible to find 3 bedrooms at all.

Is it really even a bedroom if you can't fit a queen sized mattress? That's an incredibly small room.