The special features of houses in the towns of Indus Valley Civilization were as follows :
- People built their houses on high level in order to protect from river flood.
- The houses of rich people were two-storeyed.
- The doors and windows of the buildings opened in small streets instead of the main road.
- The rooms of each house were arranged around a courtyard.
- There was facility of staircase to go on the upper floor of the building.
- There was an excellent and modern arrangement of a well, a bathroom, excellent drainage system for dirty water, kitchen, toilet, etc. in every building. The drains in the houses led to a cess-pool or manhole. The drains along the main road were covered and were inspected and cleaned regularly.
Indeed, the towns of this civilization were the best towns from the town planning point of view.
