TABLE I - ZONING MAP CHANGES
Ord. No.    Date       Description
194    2-10-41    The first business district on Zoning Map extended 148.49 feet south on the east side of SOM Center Rd. to the north line of Seneca Rd.
271    7-21-47    (a)    Building line on both sides of Wilson Mills Rd. changed to 90 feet from center line of Wilson Mills Rd.
       (b)    Class U-4 use to be extended along west side of SOM Center Rd. south of Wilson Mills Rd. to Seneca Rd. to the same depth as the present Class U-4 District south of Wilson Mills Rd. and west of SOM Center Rd.
276    10-6-47    The Class U-4 use on east and west sides of SOM Center Rd., both north and south of Wilson Mills Rd., increased to extend 300 feet back from the center line of SOM Center Rd.
295    8-16-48    Building line on both sides of Ridgebury Blvd. changed to 90 feet from the center line of Ridgebury Blvd.
656    6-15-59    Transferring 100 feet of frontage on both sides of Wilson Mills Rd. to U-4.
705    6-19-60    Property on west side of SOM Center Rd. in the vicinity of Wilson Mills Rd. from Class U-1 to Class U-3 (Apartment House), but the property shall remain in a Class H-1 Height District.
730    6-19-61    Property on the north side of Wilson Mills Rd. in the southeastern corner of the Village from Class U-1 to Class U-3 AA (Restricted Multi-Story Apartment House).
741    11-20-61    1.185 acres on west side of SOM Center Rd. from Class U-1 to Class U-4 Commercial, except for strip 15 feet by 348 feet remaining in Class U-1.
764    9-17-62    (a)    190 acres in the vicinity of Wilson Mills and Highland Rds. and Interstate Routes 271 and 290 rezoned to Office-Laboratory and Production-Distribution Districts.
       (b)    200 acres in the vicinity of Highland and SOM Center Rds. Midva Ave. and Interstate Route 271 rezoned to Office-Laboratory and Production-Distribution Districts.
855    9-21-64    Property at SE corner of SOM Center Rd. and Sandalwood Dr. from Class U-2 to Class U-4.
960    7-18-66    All land in Lot 13, Tract 2 from U-4 Use District (Commercial) to Local Business District.
71-29    7-19-71   Permanent Parcel 831-35-4 from Class U-1 to Office-Laboratory District.
72-1    4-17-72    Property in southeastern corner of Village from Class U-3 AA (Restricted Multi-Story Apartment House) to Class U-1 (Single Family).
72-7    5-15-72    Land partly in Motorists-Service District and partly in a Class U-1 District to Small Office Building District.
72-2    1-15-73    Approximately 200 acres in the vicinity of Highland and SOM Center Rds., Midvale Ave. and Interstate Route 271 to Class U-1 (Single Residence).
73-43    8-19-74    New Zoning Map dated September 1973 adopted.
77-33   10-17-77   Land north of Highland Rd. and west of S.O.M. Center Rd. from Office-Laboratory and Production-Distribution Districts to Class U-1 District.
79-80   6-5-80   6685 Beta Drive from 7.21 acres of Office-Laboratory and 0.79 acres of Residential to Production-Distribution.
80-9   6-5-80   Permanent Parcel 831-13-11 at westerly end of David R. Wiley Memorial Park from Office-Laboratory to Residential District.
85-4   3-18-85   14.06 acres fronting on S.O.M. Center Rd. from U-1 Single- Family Residential and Office Laboratory District to U-1 Single- Family Residential and Production-Distribution District.
93-06    Approved 5-4-93
      Land at 6447 Wilson Mills Rd. from Motorist Service District by electors to Local Business District.
97-25    Approved by electors 11-4-97
      Permanent Parcels 831-11-008, 831-11-009 and 831-11-031 on Highland Rd. and the residential portion of 831-12-003 from its residential district, to Production/Distribution District.
2000-16    Approved by electors 11-7-00
      Certain Village land (51 acres) rezoned to Single Family Residential (U-1) District.
2003-18    Approvedby electors 11-4-03
      6.6 acres on S side of Mt. Vernon Office Building (PPN 831-13-003, 831-13-006 and 831-13-017) from U-1 Residential District and Office Laboratory District to Planned Residential Development District.
2011-28   Approved by electors 11-8-11
      1.28 acres of land located on the south side of Wilson Mills Road east of SOM Center Road and known as Permanent Parcel Numbers 831-39-010 and 831-39-009 from its current classification of U-1 Residential District to Local Business.
2019-17   Approved   Property located on SOM Center Rd., Permanent Parcel
   by electors   Number 831-15-003, rezoned from U-1 Single-Family
   3-3-20   Residential District to Office Laboratory District.
2019-18   Approved   Property located at 6625 Wilson Mills Rd., Permanent Parcel
   by electors   Number 831-15-014, rezoned from U-1 Single-Family
   3-3-20   Residential District to Small Office Building District.