This chapter is enacted in order to bring previous and existing ordinances on the same subject up to date and make the zoning conform to changed conditions in certain instances. This chapter is largely a reenactment of ordinances on the same subject adopted in 1922, 1927 and 1932, which have been revised to conform to present conditions. The Council, in enacting this chapter, has given reasonable consideration to the character of the various zones established, the peculiar suitability of each for particular uses, the conservation of property values, and the direction of building development in accordance with a well considered plan. The Council also has given reasonable consideration to the character of buildings erected in each zone and the present use thereof, the value of the land, and the use to which it may be put to the end that the regulations herein imposed may promote the public health, safety, and general welfare. The provisions of this chapter shall be held to be the minimum requirements for the promotion of the public health, safety, comfort, convenience, and general welfare. It is not intended by this chapter to interfere with, abrogate, or annul any easement, covenant, or other agreement between parties. (1962 Code §§ 10-104, 10-863)