(A) All area ways containing stairways leading from streets or alleys into basements shall be protected by railings as described by § 19-22.
(B) The entrance from the street or alley way shall be perpendicular to the building and that portion of the area way which is immediately in front of the entrance shall be of durable material and safely constructed and, for a space the width of the entrance and from the entrance to the building, shall be level with the sidewalk.
(`90 Code, § 19-17)