I originally got 6 companies to quote on my design, 4 of which were solely Thai owned & operated. The company I selected was admittedly on the high end of the quotes but I liked the "prospective customer experience" in what I suppose was the tendering process. I saw a lot of their work & being able to converse freely in English is a huge benefit. Its not much higher than the solely Thai quotes so i'm happy with the agreed price. I'm a complete construction cretin so I wanted to be nursed through the build which is exactly what I'm getting so far.
Its a two & a half rai plot & we're building a bungalow with landscaping front & rear. I'm planning on getting old & infirm there so lots of flat areas & low, wide steps if needed