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, prosperity and general welfare. It is not intended by this chapter to interfere with or abrogate or annul any easements, covenants or other agreements between parties; provided, that where this chapter imposes a greater restriction upon the use of buildings or premises or upon the height of buildings, or requires larger open spaces, than are imposed or required by other ordinances, rules or regulations, or by easements, covenants or agreements, the provisions of this chapter shall govern. (11-20-75, art. 15, 15.02)