A. 
Except for signs which are regulated by § 120-40.10, any use which is made nonconforming by any use regulation of this chapter or by any subsequent amendments hereto may be continued, except as hereinafter provided.
[Amended 8-20-1979]
B. 
Change in use.
(1) 
Such nonconforming use may be changed as follows:
(a) 
A use which is not classified herein may be changed to a conforming use or, when approved by the Board of Appeals, to an appropriate classified use.
(b) 
A classified use may be changed to a use of a higher classification.
(c) 
A classified use may be changed to a use of the same classification if the Board of Appeals determines that the new use is no more detrimental to the adjacent properties that the existing use and that off-street parking is adequate (see § 120-41).
(d) 
Once changed to a conforming use or to a use of a higher classification, such use shall not thereafter revert to a use of a lower classification.
(2) 
Uses are hereby classified as follows with the lower number indicating the higher classification:
(a) 
Class I: uses first permitted in R-90, R-75 or R-65 Districts.
(b) 
Class II: uses first permitted in R-90A, R-75A or R-65A Districts.
[Amended 8-17-1987]
(c) 
Class III: uses first permitted in R-50 District.
(d) 
Class IV: uses first permitted in R-60A District.
(e) 
Class V: uses first permitted in C-1 District.
(f) 
Class VII: uses first permitted in C-2 District.
[Amended 8-17-1987]
(g) 
Class VI: uses first permitted in M-1 District.
[Amended 8-17-1987]
(h) 
Class VIII: uses first permitted in M-2 District.
(3) 
Nonclassified uses include uses first permitted in the R-100A District and uses not listed in any district in the use regulations of this chapter.
C. 
Enlargement or extension. Such nonconforming use shall not be enlarged or extended, except that in any C or M District any nonconforming building may be enlarged to an extent not exceeding 25%, in the aggregate, of the gross floor area devoted to such nonconforming use. In no case shall such enlargement extend beyond the lot occupied by such nonconforming use nor violate any height, yard, parking area or other open space requirement of this chapter. When the total of all enlargements equals 25% of the gross floor area existing at the time such use became a nonconforming use, no further enlargements shall be permitted.
D. 
Repair or alteration.
(1) 
Nothing herein shall be deemed to prevent normal maintenance of a building or other structure containing a nonconforming use, including nonstructural repairs and incidental alterations not extending the nonconforming use.
(2) 
No structural alterations shall be made in a building or other structure containing a nonconforming use except:
(a) 
When required by law.
(b) 
To restore to a safe condition any building or structure declared unsafe by the Building Inspector.
(c) 
To accomplish permitted enlargements.
(d) 
To accomplish a change to a conforming use or to a use of a higher classification.
E. 
Restoration. Such nonconforming building or other structure which has been damaged or destroyed by any means to the extent of 50% or more of its equalized assessed value as determined by the Town Assessor of the Town of West Seneca, or which has been condemned by the Building Inspector and ordered to be demolished, shall not be rebuilt or repaired except in conformance with the regulations of this chapter. In the case of a permitted restoration of a nonconforming use, neither the floor area nor the cubical content shall be increased from the original nonconforming building or other structure.
A. 
In any district, whenever a nonconforming use of land, building or other structure, or any part or portion thereof, has been discontinued for a period of one year, such nonconforming use shall not thereafter be reestablished, and all future use shall be in conformity with the provisions of this chapter. Such discontinuance of the active and continuous operation of such nonconforming use or a part or portion thereof for such period of one year is hereby construed and considered to be an abandonment of such nonconforming use regardless of any reservation of an intent not to abandon same or of an intent to resume active operations. If actual abandonment in fact is evidenced by the removal of buildings, other structures, machinery, equipment or other evidences of such nonconforming use of the land and premises, the abandonment shall be construed and considered to be completed within a period of less than one year and all rights to reestablish or continue such nonconforming use shall thereupon terminate.
B. 
The provisions of this section shall not apply to agricultural land which is not used because of participation in federal or state agricultural programs or because of normal agricultural practices.
The following nonconforming uses may be continued for the period of time specified, provided that after the expiration of such period any such nonconforming use shall become an unlawful use and shall be terminated:
A. 
Within one year.
(1) 
In any R District, any nonconforming use not in an enclosed building, including but not limited to junk business, auto wrecking or dismantling or the storage of motor vehicles which normally stand for 24 hours or more.
(2) 
In any R District, the outdoor storage of contractor's equipment or of commercial vehicles exceeding three-fourths (3/4) ton rated capacity.
(3) 
In any district, any adult use.
[Added 10-20-1980]
B. 
Within three years.
(1) 
In any R District, the parking or storage of equipment or commercial vehicles exceeding three-fourths (3/4) ton rated capacity.
(2) 
In any R District, a nonconforming sign or a non-conforming building or other structure with an assessed value under $500. The provisions of this subsection shall not apply to nonconforming roadside stands accessory to agricultural use of the premises nor to identification signs accessory to the buildings designed for business or industrial use.
(3) 
In any R District, any nonconforming accessory use conducted within a garage or other accessory building which is capable of being used for a conforming use.
C. 
Within 12 years.
(1) 
In any R District except an R-60A District, any gas station or public garage.
A. 
Continuation. Any building, other structure or use of land which is made nonconforming by any lot size, open space, height or building size regulations of this chapter or by any subsequent amendments thereto may be continued, except as hereinafter provided.
B. 
Enlargement or extension. Such nonconforming building, other structure or use of land may be enlarged or extended, provided that any such enlargement or extensions shall comply with the regulations of this chapter.
C. 
Repair or alteration. Such nonconforming building or other structure may be repaired or structurally altered, provided that alterations creating enlargements or extensions shall conform to the regulations of this chapter.
D. 
Restoration. Such nonconforming building or other structure which has been damaged or destroyed by any means to the extent of 75% or more of its equalized assessed value as determined by the Town Assessor of the Town of West Seneca, or which has been condemned by the Building Inspector and ordered to be demolished, shall not be rebuilt or repaired except in conformance with the regulations of this chapter. In the case of a permitted restoration of any such nonconforming use, the degree of nonconformance of the original building or other structure shall not be increased.