§ 255-60.   Use regulations.
In an OC Office Center District, a or combination of may be erected or used and a may be used or occupied for any of the following purposes and no others:
   A.   Office . Professional, executive, administrative and governmental; such shall include but not be limited to the following:
      (1)   Insurance, real estate and other similar business and professional offices.
      (2)   Dental and medical clinics and testing laboratories.
      (3)   Private, vocational, business and professional , except those of industrial character.
      (4)   Office for companies and corporations.
   B.   Personal service and/or convenience type commercial facilities for the primary of employees, visitors and/or clients of the Office Center District and only for the incidental of the general public shall be permitted. Such include but are not necessarily limited to the following: eating establishments, facilities providing living quarters for transients, banks, drugstores, barbershops and beauty parlors.
   C.    customarily incidental to any of the above . Such may include garages for storage and maintenance of motor vehicles of owner or owners, tenants, their employees, invitees and other visitors, parking facilities, maintenance and utility shops for the upkeep and repair of other , and services, central heat and power plants for furnishing heat and electrical energy to all and and storage of documents, records and personal property and cafeterias, recreational facilities, post offices and guest lodges for the of employees and visitors to the Office Center, provided that such are planned as an integral part of the office   and are located on the same site, and provided further that guest lodges are approved by the Zoning Hearing Board and authorized as a .
   D.   . A , as defined in § 255-7, when approved by the Board of Commissioners as a conditional , subject to the requirements and criteria of § 255.61.1. [Added 3-28-2017 by Ord. No. 17-1330]
   E.   No area shall be used for an OC Office Center District if there exists in the area sought to be used for an OC Office Center District any which would be under the terms of this section. However, the governing body may authorize the office center with a if, prior to the issuance of a and/or zoning , the developer agrees and guarantees, in writing, to the satisfaction of the governing body, that all are removed from the area within three years from the date of the issuance of a for the of the principal . Upon written request, the governing body may extend the time for an additional year. Said guaranty shall be in the form of a performance bond or cash escrow security. The amount of the security shall be at least equal to 120%, as determined by the governing body, of the estimated cost of removal of the . The creation of an odd-shaped area which excludes is to be avoided.
   F.   If the of the office center is to be carried out in stages, each stage shall be so planned that the foregoing requirements and the intent of this chapter shall be fully complied with at the completion of any stage.
   G.    .
      (1)   A may be permitted as a conditional upon application to the Board of Commissioners and the determination by the Board that:
         (a)   Such is consistent with § 255-58, Purpose; intent.
         (b)   Such will not adversely affect the in which such is contemplated or neighboring .
         (c)   The design of the heliport meets the criteria provided in Chapters 4 through 8, inclusive, and Appendices I and II of Heliport Design Criteria, Federal Aviation Administration, Department of Transportation Advisory Circular AC No. 150/5390-1B, dated August 22, 1977, as revised or amended. 23
         (d)   A buffer strip shall be landscaped so as to provide a visual barrier unless waived by the Board of Commissioners.
      (2)   Additional conditions.
         (a)   The heliport shall be licensed by the Pennsylvania Department of Transportation.
         (b)   A heliport shall be located not less than 400 feet from a residential district as measured from the center of the helipad to the residential district line.
         (c)   A heliport located at least 400 feet but less than 600 feet from a residential district shall be restricted to by helicopters in the following categories:
            [1]   Single-engine turbine-powered helicopters having maximum gross weights not exceeding 4,500 pounds.
            [2]   Twin-engine turbine-powered helicopters having maximum gross weights not exceeding 10,000 pounds.
         (d)   A heliport located at least 600 feet but less than 800 feet from a residential district shall be restricted to by helicopters in the following categories:
            [1]   Single-engine piston-powered helicopters having maximum gross weights not exceeding 4,500 pounds.
            [2]   Single-engine turbine-powered helicopters having maximum gross weights not exceeding 8,000 pounds.
            [3]   All helicopter categories listed in Subsection G(2)(c) above.
         (e)   A heliport located not closer than 800 feet from a residential district shall be restricted to by helicopters in the following categories:
            [1]   All helicopter categories listed in Subsection G(2)(c) and (d) above.
            [2]   All helicopters having maximum gross weights not exceeding 15,000 pounds.
         (f)   No more than two flights shall be permitted between the hours of 8:00 p.m. and 7:00 a.m., local time, unless waived by the Board of Commissioners.
         (g)   No maintenance or supply facility or facility for the storage of fuel shall be permitted on site.
         (h)   The heliport shall be protected by a safety barrier or fence not less than three feet in height above grade to preclude unauthorized from entering the operational area. A sufficient warning and shall be installed on the exterior side of the fence for the information of the general public. The Commissioners may allow waivers of the fence, barrier and/or requirements in appropriate cases.
      (3)   Exceptions to the above may be granted on a temporary basis only in conjunction with a special event such as an athletic contest, a holiday celebration, parade or similar activity after reasonable advance notice has been given to the Upper Dublin Township Police of the intention to do so or when necessary for law enforcement purposes and emergencies. 24
23. Editor's Note: Said circular is on file in the Township offices.
24. Editor's Note: Original Section 4, regarding penalties, which immediately followed this subsection, was deleted 1-10-1995 by Ord. No. 879.