[Added by Ord. No. 2002-12; amended 12-6-2017 by Ord. No. 2017-07]
Any existing nonconforming single-family detached dwelling which exists as of the enactment of this chapter may be expanded, without violating this chapter, and without requiring a variance, where the lot on which the dwelling is located meets all applicable lot area, lot frontage, and lot width requirements of the zone, and where the proposed expansion meets all applicable yard requirements, and will not otherwise increase or expand the nonconformity of the existing dwelling. A variance will not be required in the case where a new roof to replace an existing roof on an existing single-family detached dwelling, where the height of the proposed new roof will comply with the height requirements for the zone, will not increase or otherwise alter the existing building envelope of the dwelling, and where no additional living space is proposed.