Something you notice when you walk around in Kathmandu is how building materials use the same street space as people.
There is no separation, no wall, no signalling of each other's square on the chessboard. Walking around involves a constant dynamic process of establishing rights of way and space sovereignty.
Construction work is not separated from other everyday activities by hoardings. It's all in plain view and close to your body. You can compare material against material, legs against metal rods, hands against bricks
One particular occurrence that I'm liking is the pile of bricks turned wall. Bricks are in (public) storage, waiting to be used, but they also act as a wall. Some wall attributes appear here and there over time (moss, plants creeping up) and from certain angles these stacks do look as walls, but at any moment a builder may appear and take away some of the bricks to build a real, legit wall nearby.