No lot, premises, building or portion thereof within the Beverly Hills hotel specific plan area shall be erected, constructed, built, altered, enlarged, built upon, used or occupied except for hotel and ancillary purposes consistent with the Beverly Hills hotel specific plan. However, if all hotel uses cease to exist within the specific plan area, then the specific plan area may be used for single-family residential purposes consistent with the standards applicable to development in the R-1.X zone. (Ord. 92-O-2151, eff. 10-9-1992)