Site plan and subdivision review and approval shall be required before any development, change of use, or before any excavation, removal of soil, clearing of a site, or placing of fill on lands contemplated for development; and, except as otherwise provided, no building permit shall be issued for any building use or reduction, or enlargement in size or other alteration of any building or change in the use of a building, including accessory structures, unless a site plan or subdivision is first submitted and approved by the Combined Planning Board, and no certificate of occupancy shall be given unless all construction and development conform to the plans as approved by the Board.