If you, your partner or “friend” needs to get a Thai passport in Bangkok, here’s the scoop. My girlfriend needed a renewal and I decided it was worth going along to see how the service matched up to the UK. Apologies in advance for the poor-quality pictures.
We took a cab to Chang Wattana, which is the place to get Thai passports in the KOK, although some people go to Central Bangna, apparently. The journey cost us 125 Baht – including the toll way – and took 15-20 minutes from Huay Kwang (where we currently reside). We got there at around 11am, although I’d recommend getting there around 9am if you want to be in and out sharply.