Why would the early temple have …

Temples overtime developed huge structures, built in shape of step pyramids. But early temple were much like house. They were small shrines made of unbaked bricks except that had outer walls going in and out at regular intervals unlike ordinary building. Early temples were like a house because:
(i) The temple symbolize the community as a whole and was the nucleus around which the city developed.
(ii) It was here that the processing of produce- grain grinding, spinning, weaving was done as in household.
(iii) The rulers of early Mesopotamia's cities were priests.They lived and administered from there. Since temples were used for residential purposes they looked like houses.
(iv) The complex was not only a place of rituals and worship but contained warehouses, workshops and living quarters of artisans.