Building B
At the back of the land, 8.4*5m
4 flats, each flat is 4.2*5m
Back part is a firewall. (It's allowed in our building code to have 1 side as firewall.)
Building B floor plan
Bldg B front & side views
Disclaimer: plans still subject to change!
Edit:
As of now, the exterior walls will be made of CHB, partition walls made of fiber cement board, slab for upper floor - conventional concrete pour (unless I can find a nearby supplier for steel deck). The interior ceiling for upper floor will be made of cement board. The external ceiling will be made of cement board or PVC panel (depends if I can find a supplier for the PVC panel; I've already talked to one & they don't have it). PVC panel is easier to install since it doesn't need painting (while cement board does).
For the lofts in Building A, the loft floor will be made of tubular steel and phenolic boards (or plywood). Again, it depends if I can find a nearby supplier for phenolic boards. The stairs to the loft will be made of tubular steel. The stairs will be removable, similar to the ones I've seen in tiny homes on wheels (example in YT channel Small House, Big Journey). Lofts are "in" nowadays in PH, due to small land area being sold/ available.