Except as set forth in Sections 52-81 to 52-83, inclusive, relating to Regulations Applying to Non-Conforming Signs, if a non-conforming building or other structure is damaged, destroyed or demolished, the provisions set forth in Sections 52-52 to 52-56, inclusive, shall apply.

However, if a non-conforming single- or two-family residence in an R3, R4, or R5 District is damaged, destroyed or demolished, such building may be continued in use and reconstructed provided that such reconstruction shall not create a new non-compliance nor increase the pre-existing degree of non-compliance with the applicable bulk regulations.