Special Status for Single Family Residences. Notwithstanding the restrictions of any other section of this Code, all single-family residential dwellings built before June 30, 2004, on commercial or industrially zoned properties are considered as conforming with the base district. If any building on these properties is substantially destroyed, as defined in Section 5.3.110.B, it may be rebuilt in accordance with the standards of the Residential District, subject to the regulations of any applicable overlay district. Expansions, accessory buildings, and other residential uses are also allowed in accordance with the standards of the Residential District. If an existing single-family residence is converted to a permitted commercial, office or industrial use, the special status granted here is rescinded. However, the use of the property may revert to residential if the requirements of the Conditional Use Permit process in Chapter 4.5 are met, and the structure meets or can meet residential building code requirements.