A certificate of occupancy may be obtained, on application, from the Zoning Inspector/Building Inspector. Such certificate shall be issued only if the proposed use of the building or land conforms to the provisions of this chapter. The Zoning Inspector/Building Inspector shall make or cause to have made an inspection of each building or lot for which a certificate of occupancy has been applied before issuing such certificate. Such inspection shall be made within 15 days from the date of application, Saturdays, Sundays, and legal holidays excepted. Failure to make such inspection and determination within the specified period of time shall be deemed to be approval of the application for a certificate of occupancy.