4.1.1. All structures erected hereafter, all uses of land or structures established hereafter, all structural alterations or relocations of existing buildings occurring hereafter, and all enlargements of, or additions to, existing uses occurring hereafter shall be subject to all regulations of this zoning ordinance, which are applicable to the zoning districts in which such buildings, uses, or land shall be located.

4.1.2. The provisions of this ordinance shall be held to be the minimum requirements for the promotion and protection of the public health, safety, morals and general welfare.

4.1.3. Where the conditions imposed by any provisions of this ordinance upon the use of land or buildings or upon the bulk of buildings are more restrictive than comparable conditions imposed by any other provision of this ordinance or of any other law, ordinance, resolution, rule or regulation of any kind, the regulations which are more restrictive or which impose higher standards or requirements shall govern.

4.1.4. This ordinance is not intended to abrogate any easement, covenant, or any other private agreement; provided, that where the regulations of this ordinance are more restrictive, or impose higher standards or requirements than such easements, covenants, or other private agreements, the requirements of this ordinance shall govern.

4.1.5. No building, structure, or use which was not lawfully existing at the time of the adoption of this ordinance shall become or be made lawful solely by reason of the adoption of this ordinance; and to the extent that, and in any manner that, said unlawful building, structure, or use is in conflict with the requirements of this ordinance, said building, structure or use remains unlawful hereunder.