The Lower Town
The Lower Town is organised on a grid system with four avenues running from north to south and four running from east to west. The avenues are several metres wide and have drains running down the middle or side of the road.
The avenues divide the Lower Town into many blocks. Alleyways and lanes further divided these blocks. Judging by the size of the buildings found in the Lower Town, archaeologists believe that it was probably where most of the people in the city lived and worked.
Most of the homes are made of baked bricks in a standard size of 28 x 14 x 7 centimetres. The houses generally have several rooms built around a courtyard. The doorways to the outside usually open onto side alleys rather than onto the avenues. Archaeological evidence, such as the remains of stairways, seems to suggest that many of the buildings had two storeys. Roofs were probably made of wooden beams covered with reeds and packed clay.
Many homes had specific rooms for bathing. These rooms had floors made from baked bricks or tiles and drains which emptied into the drains in the street outside. People had access to clean water either from wells within their homes or from public wells in the streets. Over 700 public and private wells have been found at Mohenjo-daro.