No land shall be used or occupied and no building or part thereof shall be used, occupied, erected, moved or altered unless in conformity with the regulations hereinafter specified for the district in which it is located and in conformity with the Schedule of Requirements which accompanies this chapter and which is hereby made a part of this chapter.[1]

There shall be provided for every lot a front, a rear and side yards as required in the zone district in which the lot is located. All front yards must face upon a dedicated public street or a private street meeting the requirements of this chapter and shall be of the size required for the particular district in which the lot is located. On existing streets less than 50 feet in width, the required front yard shall be increased by one-half the difference between the width of the street and 50 feet.

No building shall be erected or altered to accommodate or house a greater number of families or have narrower or smaller front yards, rear yards or side yards than is specified for the district in which the building is located.

No open space which has been counted or included as a part of a front yard, side yard, rear yard or other open space as required by this chapter for one building shall by reason of change of ownership or for any other reason be counted or included in order to comply with the yard or other open space requirement for any other building.

No lot shall be so reduced in area that it does not meet the area requirements, or that any required open space will be smaller than prescribed in the regulations for the district in which the lot is located.