Chaophraya

You'll spot this place from across Union Terrace Gardens – the Victorian stonework and those big windows make it impossible to miss. Inside, they've done something clever with the old banking hall, keeping the grandeur but making it feel warm rather than stuffy. The Thai menu here isn't messing about with fusion nonsense – they know their som tam from their massaman and aren't afraid to bring proper heat when you ask for it. The location means you're right in the thick of things on Union Street, but those big windows facing the gardens give you a bit of breathing space from the city centre chaos. Service moves at a decent clip, and they're good with groups without making solo diners feel like spare parts.