I live in the US and 5000 sq ft is unheard of even in most affordable of all places. 3000 is more like it - still big but only in cheaper places. As you get to

I live in the US and 5000 sq ft is unheard of even in most affordable of all places. 3000 is more like it - still big but only in cheaper places. As you get to costlier real estate markets 1800 sq ft is not uncommon.