In their interpretation and application, the provisions of this chapter shall be held to be the minimum requirements adopted for the promotion of the public health, safety, comfort, convenience and general welfare. Except where specifically provided to the contrary, this chapter is not intended to repeal, abrogate, annul or in any way to impair or interfere with any rules, regulations or permits previously adopted or issued or which shall be adopted or issued pursuant to law relating to the use of buildings, structures, shelters or premises; nor is it intended to interfere with or abrogate or annul any easements, covenants or other agreements between parties; provided, however, that where this chapter imposes a greater restriction upon the use of a building or premises or requires larger open spaces than are imposed or required by any other statute, law, rule, regulation or permit or by any easement or agreement, the more restrictive provisions shall control. In the event of conflict in the terminology of any section or part thereof, the more restrictive provision shall control.