Single-family detached or semidetached dwelling. A semidetached dwelling shall be one which is in all respects within the definition of a "single-family detached dwelling," except that it may have one party wall with another semidetached dwelling, each of which dwellings shall be for occupancy by one separate individual or family.

Professional, governmental or business office or building, subject to the following regulations, provided that no building shall include a store or personal service shop, except such store or shop designed and used primarily by occupants of the building in which it is located; or any retail commercial characteristic which detracts materially from the character of the district or the surrounding neighborhood.

Educational or religious uses (but not including hospitals, sanatoriums or medical centers) on lots of not less than one acre.

Day-care center, when authorized by the Board of Supervisors as a conditional use as set forth in § 139-71.1 below.

The following additional uses when authorized by the Zoning Hearing Board as a special exception, subject also to the requirements of § 139-122:

Motor vehicle parking lot, provided that such parking lot or garage shall not be used for sale, servicing or the dead storage of vehicles.

Accessory use on the same lot with and customarily incidental to any of the above permitted uses, which use may include living accommodations for one family in conjunction with office or permitted nonresidential use, and signs when erected and maintained in accordance with the provisions of Article XVIII of this chapter.

Bank or other financial institution with drive-through lanes when authorized by the Board of Supervisors as a conditional use as set forth in § 139-71.1 below.

Retail food market, provided the following requirements are met:

Lot area and lot width. A lot area sufficient in size to assure adequate water supply and sewage disposal facilities shall be provided and the water supply and sewage disposal arrangements shall be approved by the Township or other appropriate governmental agency. In no case, however, shall the lot area for each principal use be less than 20,000 square feet or the lot width less than 100 feet at the building line or less than 80 feet at the street line. Notwithstanding the lot area, lot width and yard requirements of this section, a lot which was held in single and separate ownership as of April 25, 1961, which is not of the required minimum area or width, may be used for any one principal use permitted in the district.

Building area. Not more than 50% of the lot area required for each use may be occupied by buildings.

Yards. Front, side and rear yards shall be provided on each lot as follows:

Height. No building shall exceed 35 feet in height.

Access and off-street parking requirements. In O-P Office Professional Districts, the special provisions of §§ 139-98, 139-99 and 139-100 relating to parking, loading and the development of highway frontage shall apply.

Impervious coverage. Not more than 70% of the lot area may contain impervious surfaces.

Freestanding conditional uses shall be permitted.

When a conditional use is located within a building containing a primary use permitted in § 139-39 herein, said conditional use shall be limited to 15% of the total leasable area of said building.

As deemed warranted by the Board of Supervisors, adjustments to applicable parking standards may be required when a conditional use is located within a building containing a primary use.

Conditional uses shall have hours of operation that coincide with primary uses permitted in § 139-39 herein, unless additional hours are deemed reasonable by the Board of Supervisors based upon the nature of use.