What ever you do, be aware Thai builders do not build to western standards, they say yes to everything you ask, but are clueless about everything from balancing off ladders,levels, footings, square corners,,water and drainage , don’t get me started on roof and electrics, subsidence, fortunately I sorted it out myself, my wife took court action for the cost of doing so, they paid in full and then some.
I had a lovely house built on my wife’s land, and all the family live in it, having lost a house in England to an ex wife, what the hell, ten very happy years with my Thai wife and counting,if you cannot afford to lose it, do not build it
I tried to open a bank account in London, Bangkok Bank, shot down straight away, not Thai, opened an HSBC account came to Thailand, of no use to me unless, I’m in business or live here,