I copied this from a previous parking issue that relates to the code in residential areas, section 20.83 of the code:
Per VMC 20.81.440A, anyoff-street parking area shall be effectivelyscreened byasite-obscuringfence, hedge, or planting on each side which adjoins property situated in an R District, or the premises of any school or like institution, as provided in Chapter 20.83. Screening along public streets shall be 3 feet in height. Screening between properties shall be 6 feet in height.
here is another link/post: Page 1 of 3 March 12, 2007 Community Planning Department PO Box ... ... crime homeless and police presence â€¢ Transportation issues including parking, signage,
sidewalks ... With city rules regarding fences and storage yards it is ...
this should get you started