Neighbour House - Update 1

The outer wooden wall frames and the internal dividing wall are sat and mounted on the concrete slab. Underneath the concrete slabs are the plumbing. The upper floor floors' beams sit on top of the wooden wall frame . Then they put up another outer wooden wall frames and dividing wall sitting on the upper floor beams followed by the roof.

Do you think the lower wooden framed wall and inner wall are strong enough to hold the upper floor,roof, furnitures and people? Maureen thinks the houses built over here are very flimsy. I personally do not think so, as most if not all, the houses are built in this way. But I think Malaysian houses are over structured and over built making it more expensive. The irony is, even it is over structured and over built, houses still cracked and some even collasped. Why?