In interpreting and applying the provisions of this chapter,
they shall be held to be the minimum requirements for the promotion
of the public safety, health, convenience, comfort, morals, prosperity,
and general welfare. It is not intended by this chapter to interfere
with, abrogate, or annul any ordinance, rules, regulations, or permits
previously adopted or issued, and not in conflict with any of the
provisions of this chapter, or which shall be adopted or issued pursuant
to law relating to the use of buildings or premises, and likewise
not in conflict with this chapter; nor is it intended by this chapter
to interfere with, abrogate, or annul any easements, covenants, or
other agreements between parties, except that if this chapter imposes
a greater restriction, this chapter shall control.