Except where a unit is located on a residential lot and lawfully used as a single-family dwelling, no unit shall be used as a place of business or as a place of habitation or stand in the open on any land more than 30 days without first obtaining the permit required in SGC 22.30.070. (Ord. 20-02S(A) § 4, 2020; Ord. 10-10 § 4, 2010; Ord. 04-63 § 4, 2004; B.C.S. § 8.08.140; S.G.C. § 6.12.140.)