Where, on the effective date of adoption or amendment of this chapter, a lawful structure exists that could not be built under the regulations and standards of this chapter, as adopted or amended, by reasons of restrictions on lot area, lot coverage, floor area ratio, height, yards, spacing between buildings, or other characteristics of the structure or its location on the lot, such structure may be continued so long as it remains otherwise lawful subject to the following provisions.
(A) No such structure may be enlarged or altered in a way which increases its non-conformity. Such a structure, non-conforming to its setbacks or one or more yards, may be enlarged or altered, provided the addition encroaches no further into the required setbacks or yard. Any further encroachment beyond this limitation will require that a petition for a variance be filed and approved in accordance with §§ 157.415 through 157.421.
(B) Should such structure be destroyed by any means to an extent or more than 50% of its replacement cost at the time of destruction, it shall not be reconstructed except in conformity with the provisions of this chapter.
(C) Should any such structure be moved for any reason for any distance whatsoever, it shall thereafter conform to the regulations and standards for the district in which it is located after it is moved.
(Prior Code, 7 TCC 1-35(g))