This bylaw shall be administered and enforced by the Building Inspector/Zoning Enforcement Officer. Pursuant to the State Building Code, the Building Inspector shall require such plans and specifications as shall be necessary to determine compliance with all pertinent laws of the commonwealth; buildings, structures or signs shall not be erected, substantially altered, moved, or changed in use and land shall not be substantially altered or changed in principal use unless in compliance with then-applicable zoning, and after all necessary permits have been received under federal, state, or local law.