A nonconforming use, other than a single-family residence, shall not be expanded unless such expansion has been approved as a special exception by the Zoning Hearing Board. The proposed use shall be demonstrated by the applicant to be not more detrimental to the district with respect to traffic generation and congestion, noise, illumination, electric radiation omission, smoke, dust, fumes, vapors, gases, heat, odor, glare, vibration, appearance and waste generation than the existing use on the property and shall be demonstrated to be in compliance with the performance standards in § 184-153 of this chapter. A single-family residence which is a nonconforming use shall be allowed to expand its nonconformity by expansion or construction of an accessory building as long as the proposed expansion or proposed accessory structure meets all the area, yard and height regulations of the applicable zoning district. The zoning officer for the Township shall have the authority to approve the construction of an expansion or accessory building for a single-family residence.