In interpreting and applying this chapter, the requirements contained herein are declared to be the minimum requirements for the protection of the public health, safety, comfort, convenience and general welfare. This chapter shall not be deemed to affect, in any manner whatsoever, any easements, covenants or other agreements between parties; provided, however, that where this chapter imposes a greater restriction upon the "use" of "buildings" or land or upon the erection, construction, establishment, moving, alteration or enlargement of "buildings" than are imposed by other laws, rules, regulations, licenses, certificates or other authorizations or by easements or covenants or agreements, the provisions of this chapter shall prevail. Except as hereinafter provided, the following general regulations shall apply.