My experience of Khao San Road's space is that it's one of the more interesting little retail spaces in a newer development in the area - sectionally interesting as a double height space. It's definitely crammed in there but that's what makes it interesting. The project has a tiny floorplate but they managed to squeeze in that space, and a restaurant (not a dry cleaner, Subway, etc.) has made good use of it. It's rare to have a retail unit that isn't a more transparent glass but I do like how the restaurant has added wood screens and created their own motif behind the glazing which sort of supports the notion of it as a blank space to be given expression by its tenant.
I do wish we had more retail units in the city that were not fully glazed or where masonry, etc., came down to grade, with a setback retail entrance and shop windows like we used to see in older buildings - it gave the street more texture. That said, I think this is one of the better examples of a storefront / street fronting retail unit that employs glazing as its main architectural expression.