In any zoning district where single- or multi-family dwellings, including permanently sited manufactured homes, are a principally permitted use, there shall not be more than one principal dwelling structure on a single lot of record unless application for and approval of a variance is obtained by the Board of Zoning Appeals or the development site has prior approval by the City Planning Commission and City Council as a planned unit development.
(Prior Code, § 27.05.13.02) Penalty, see § 153.999