(a) The Community Development Director shall require that all applications for building permits shall be accompanied by plans and specifications, including a site plan, in triplicate, drawn to scale, showing the following:
(b) The actual shape, location and dimensions of the lot.
(c) The shape, size and location of all buildings or other structures to be erected, altered or moved and of any building or other structure already on the lot.
(d) The existing and intended use of the lot and of all such structures upon it, including, in residential areas, the number of dwelling units the building is intended to accommodate.
(e) Such other information concerning the lot or adjoining lots as may be essential for determining whether the provisions of this Zoning Code are being observed.