(1)The municipality shall, assign a unique premises number to every premises or part thereof in the municipal area and shall cause to be maintained a register wherein such unique premises number shall be recorded in respect of each such premises.Explanation. - In this section, the expression "unique premises number" shall mean a number assigned to the premises or part thereof by the municipality in the following manner, namely:-(a)the first three digits indicating the ward number,(b)the next three digits indicating the street number,(c)the next four digits indicating the premises number,(d)the next three digits indicating the sub-premises number,(e)the next one digit indicating the code of the building use, such as residential, commercial, industrial or other use, and(f)the last one digit indicating the code of type of construction.