In the fast developing world these days the population is also increasing rapidly, so that the small towns and cities are changing into metropolitan cities There is scarcity of land in the cities and the business is growing and expanding very fast. Therefore, huge multi-storied buildings for commercial organisations are being constructed and the number of such complexes is increasing fast day by day. Production has increased very much, and the factories have to open their offices and show rooms at various places for marketing their products. Therefore buildings for these commercial purposes have become a necessity. Most of the factories appoint agents for the sale of their products. The business men have to establish an office of the agency,which is located mostly in some multi-storied commercial complex.