Fairfax City Zoning Code
§ 260-5
Existing buildings and uses.
A.
Lawfully established buildings and uses in existence at the time of the adoption of this chapter may have their existing use or occupancy continued if they are maintained with their conditions of approval, provided such continued use is not dangerous to life.
B.
Additions, alterations or repairs. Additions, alterations or repairs may be made to any building or use without requiring the existing building or use to comply with the requirement of this chapter, provided the addition, alteration or repair conforms to that required for a new building or use.
C.
Discontinuance.
(1)
Any lot or structure or portion thereof occupied by a nonconforming use which is or thereafter becomes vacant and remains unoccupied by a nonconforming use for a period of one year shall not thereafter be occupied, except by use which conforms to this chapter.
(2)
If any nonconforming structure or use is, by any cause, destroyed to the extent of 75% of its market value as determined by the Building Official, it shall not thereafter be reconstructed as such.