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City of San Mateo Municipal Code.

27.02.075 CONFORMANCE OF ZONING PLOTS WITH REGULATIONS.

In the event that a zoning plot is divided or sold, all resulting zoning plots or parcels shall conform with all regulations of the zoning district in which the property is located. No use can be made of a resulting parcel(s) except in conformance with all regulations of the zoning district in which the property is located. There shall be no reduction in yards, open space, parking or other zoning requirements which causes or increases non-conformity.