(1) Rebuilding of lawfully established dwelling unit(s) destroyed or damaged by fire, flood, explosion, act of nature, or other accident or catastrophe; provided, that such rebuilding takes place within one year after destruction and provided no additional dwelling units are created;

(2) Alteration, expansion, reconstruction, remodeling, or rebuilding of existing single-family dwellings, multifamily dwelling units, factory-assembled dwellings and mobile homes; provided, no additional dwelling units are created;

(3) Condominium projects in which existing dwelling units are converted into condominium ownership and where no new dwelling units are created;

(4) Construction of residential accessory structures;

(5) Installation of individual mobile homes or recreational vehicles within a residential park. [Ord. 4119 § 3, 2013; Code 1970 § 3.133-1.050.]