§ 27-708.   Signs Permitted In PIO and AI Districts.
No sign shall be permitted except as follows:
   1.   On-Premises Signs.
      A.   All signs permitted in § 27-706 and electronic message signs, as provided in § 27-707(1)(D)(7), at the standards prescribed therein except as otherwise provided in this Section. [Ord. 475]
      B.   Signs for permitted non-residential uses provided:
         (1)   There shall be a limit of one parallel or projecting sign, identifying the owner and/or occupants of the building, affixed to the face of a building on each yard fronting on a street or abutting an expressway, provided a building in a yard abutting an expressway must be within 100 feet of the right of way of the expressway.
            (a)   If the building face fronts a street, all signs shall not exceed 100 square feet or 20% of the area of the building face to which they are attached or painted, whichever is less.
            (b)   If the building face is in a yard abutting an expressway, all signs shall not exceed 75 square feet or 20% of the building face to which they are attached, whichever is less.
[Ord. 461]
         (2)   Free standing signs shall not exceed 1 square foot of one sign area to 2 feet of lineal lot frontage. The maximum area of any free standing sign may not exceed 75 square feet and not more than one such sign shall be placed on property in single and separate ownership unless such sign property fronts on more than one street, in which case one such sign may be erected on each street frontage.
         (3)   Any entrance to an industrial or office park serving five or more tenants may have a single sign indicating the name of the park and listing each tenant and having a maximum area of 100 square feet.
         (4)   No sign shall be erected within 20 feet of the nearest right-of-way line of any street, road or highway.
      C.   Directional Signs. In addition to other signs permitted herein, a directional sign may be placed for each approaching lane of traffic at internal driveway intersections. Such signs may not exceed 8 square feet and shall be erected so as not to obscure the vision of vehicle drivers at such intersections. [Ord. 576]
   2.   Off-Premises Signs.
      A.   Within 100 feet of the right-of-way of an expressway, a billboard shall be permitted provided:
         (1)   The face of the sign shall have a width of no greater than 48 feet.
         (2)   The total height of the sign or any portion of the structure supporting or otherwise associated with the sign shall have a height not greater than 40 feet, subject also to the height limitations set forth in the sign area regulations of § 27-709.
         (3)   No billboard shall be located within 1,500 feet of any other billboard regardless of on which side of the highway the said other billboard is located.
         (4)   A back-to-back billboard located on a single structure shall be permitted.
         (5)   Only one sign shall be permitted on each side or face of a billboard. [Ord. 486]
         (6)   The light from any fixture illuminating the billboard shall not be directly visible in any part of the right-of-way of the highway or any other public right-of-way or property.
         (7)   The face of a sign mounted on a unit pole shall have a width no greater than 48 feet and a height no greater than 14 feet. Such sign shall be a billboard mounted on a single pole fixed in the ground and having no other support or bracing.
         (8)   Such signs may have banners, spinners, pennants, flags or other material which moves in the wind.
         (9)   Off-premises billboard signs are permitted in the PIO Zoning District only.
         (10)   All or part of a billboard may be an EMS, provided that no EMS which is a billboard, including a converted nonconforming billboard, may be located within 1,500 feet of another EMS which is a billboard.
[Ord. 475]
      B.   Those signs permitted in § 27-706(2) shall also be permitted.
(Ord. 45, Z-§ 708, 5/12/76; as amended by Ord. 124, § 1, 6/9/82; by Ord. 189, 5/14/86; by Ord. 367, 2/18/1998, § 1; by Ord. 461, 10/19/2005, § 2; by Ord. 475, 7/18/2007, §§ 7, 8; by Ord. 486, 7/2/2008, § 1; and by Ord. 576, 12/2/2015, § 3)