This chapter shall be known and may be cited as the "Historic
Districts Ordinance" under authority of MGL c. 40C.
The purpose of this chapter is to promote the educational, cultural,
economic and general welfare of the public through the preservation
and protection of the distinctive characteristics or architecture
of buildings and places significant in the history of the commonwealth
and the City and through the maintenance and improvement of settings
for such buildings and places and the encouragement of designs compatible
therewith.