In any district, every building shall have access to and be accessible from an improved street.  If located in the rear of another building as on a lot that does not have frontage on a street, there shall be provided, for the purpose of ingress and egress, a strip of land not less than 30 feet in width and a maximum of 400 feet connecting such building or lot with a street.  Such strip of land shall not be built upon or be otherwise occupied or obstructed, but shall be maintained as an easement for ingress and egress until a street be provided in lieu thereof.  No such easement or private court shall form a part of any yard or lot areas required in this chapter.
('65 Code, § 1323.13)