15. Dwelling Unit (DU): It may be defined as any building, permanent or temporary, where people sleep. It may be a hut, a house, a store with a sleeping room or rooms at the back or sides, a shelter of reeds/straw such as those used by fishermen, or any other structure where people sleep.
Dwelling unit serial number: For each dwelling unit, enter the dwelling unit serial number in column 80 as 1, 2 or 3, etc. This serial number should be the same as that you have recorded in column 14 of Part B for that particular dwelling unit.