Just bought a place in Chiang Mai and although only 2 bed it is on a 400sq/m block and have plans to add an extension across the back making a 3rd bedroom (4m x 4m) bigger lounge (out to 7m x 3m) and new kitchen (4m x 3m)
The back of the house:
I was going to just fill in the patio but after looking at the plans found the footings were a little smaller as they just had to support the patio and not more walls and a roof so I have decided to make new footings an extra metre out and make it all a little bigger in the process. From left to right will be a bedroom with ensuite, lounge and kitchen. The exsisting kitchen will become a dining room. I think I should be able to cut back into the existing roof and have a gentler slope and still have the head room The bedroom you will step down into a little. The sides will just be straight with no eaves.
Obviously the room on the left will have the window removed and bricked in, AC moved. The middle will be busted open completely and kitchen will open it by removing the door and window (down to floor level) The middle lounge I am not sure I will be able to open it completely or will need some sort of lintel?
Anyone with an idea of a ballpark cost I would like to know. It will have the same roof tiles and those thermal type bricks (forgot the name), aluminium windows and same finish and trim as the rest of the house which will have a fresh coat of paint and colour.