No land shall be occupied or used and no buildings hereafter placed, erected or altered shall be occupied or used in whole or in part for any purpose whatsoever until a certificate of occupancy shall have been issued by the Building Inspector stating that the use and building therein specified, or either of them as the case may be, complies with all the provisions of this chapter. Such certificates of occupancy shall be granted or denied within 10 days after the date written application therefor has been received by the Building Inspector.

No change or extension or alteration of use shall be made in a nonconforming use of premises until a certificate of occupancy shall have been issued by the Building Inspector indicating that such change, extension or alteration is in conformity with the provisions of this chapter, and specifying therein the permitted altered use.

A record of all certificates of occupancy shall be kept on file in the office of the Building Inspector, and copies shall be furnished upon request to any person having a proprietary or leasehold interest in the building or land affected. A fee of $10 shall be charged for each original certificate and $1 for each copy thereof.