The purpose of this law is the promotion of the health, safety, morals and general welfare of the community by establishing regulations and conditions governing the erection and use of buildings and other structures and the use of land and water for trade, industry, residence and other specified purposes; to lessen congestion in the streets; to secure safety from fire, panic and other dangers; to provide adequate light and air; to prevent overcrowding of land; to avoid undue congestion of population and to facilitate the adequate provision of transportation, water, sewerage, schools, parks and other public requirements of the community; by dividing the Islands into districts; defining certain terms; designating the kind and classes of trade, industry, residences and other purposes for which buildings and other structures may be permitted to be erected, constructed, reconstructed, altered, repaired, or used in such districts; regulating and limiting lot occupancy and population density; providing minimum size yards and other open spaces; establishing off-street parking and loading requirements; continuing a Board of Zoning, Subdivision and Building Appeals; defining the powers and duties of said Board and appeal procedures; defining the functions of the Virgin Islands Planning Office in relation to zoning amendments and planned developments; and providing a penalty for the violation of this law. It is the further purpose of this law to encourage and facilitate the development of housing affordable to persons of low and moderate income by providing incentives for private persons to produce residential housing developments which include affordable housing units.