Offices for administrative, executive, professional, sales and other similar uses the normal attributes of which do not involve the actual storage, exchange or delivery of merchandise on the premises.

Medical office.

Laboratory for scientific, agricultural or industrial research and development.

Hotel or motor lodge with an associated restaurant and assembly hall.

Municipal uses.

Helistop when authorized as a special exception in accordance with the provisions of § 165-219.

Any use of the same general character as any of the uses hereinbefore specifically permitted, when authorized as a special exception.

The following commercial uses are permitted on the same lot with the office use or the hotel or motor lodge use, provided that as to the office use, the gross floor area of all such commercial uses shall not exceed 5% of the gross floor area devoted to office use and as to hotel or motor lodge uses, the gross floor area of all such commercial uses shall not exceed 7% of the gross floor area devoted to hotel or motor lodge use, exclusive of restaurant or assembly hall use. Notwithstanding the foregoing, drive-through restaurants shall not be permitted in the AR-1 Administrative and Research District.

The commercial uses permitted in § 165-106A, B and C of Article XIX herein are permitted on the same lot with the office use or the hotel or motor lodge use; provided that as to the office use, the gross floor area of all such commercial uses shall not exceed 5% of the gross floor area devoted to office use and as to hotel or motor lodge uses, the gross floor area of all such commercial uses shall not exceed 7% of the gross floor area devoted to hotel or motor lodge use, exclusive of restaurant or assembly hall use. Notwithstanding the foregoing, drive-thru restaurants shall not be permitted in the AR-1 Administrative and Research District.

Such signs as are permitted by the Upper Merion Township Sign Ordinance, being Article XXVII herein, as amended.

Notwithstanding the foregoing, no exterior storage of materials or equipment shall be permitted and no use shall be permitted which may be noxious or offensive by reason of odor, dust, fumes, smoke, gas, vibration or noise or which may constitute a public hazard, whether by fire, explosion or otherwise.

Personal care facility as a conditional use in accordance with § 165-219.1.

For the purpose of AR-1 Districts, the "height of the building" shall be defined as the building's vertical measurement from the mean level of the ground surrounding the building to the highest roof level, provided that chimneys, cooling towers, elevator housings, tanks and similar projections which are a functional part of the building shall not be included in calculating the height.

Accessory structures. The maximum height of any structure which connects one building with another shall be one story not exceeding 30 feet.

Minimum lot area and width. A lot area of not less than 10 acres and a lot width of not less than 300 feet at the front lot line shall be provided for every building or other structure erected or used for any use permitted in this district.

Front yard. There shall be a front yard on each lot which shall be not less than 175 feet in depth.

Side yards. There shall be two side yards on each lot the depth of which shall each be not less than 150 feet.

Rear yard. There shall be a rear yard on each lot the depth of which shall not be less than 150 feet.

Building size. Measured in plan view, no single building shall project outside of a circle having a diameter of 400 feet. This regulation shall apply to the principal buildings on the lot and shall not be applicable to connecting structures.

Building arrangement. In the case of two or more buildings for any permitted use on one lot, such buildings shall be arranged in a harmonious grouping. The distance between any two buildings, regardless of orientation, shall be not less than the height of the taller, if applicable, of the two buildings, or the height of one building if both are of the same height; provided, however, that in no case shall the distance between buildings or wings of a building court be less than 75 feet.

No parking area shall be permitted in the required front yard within 100 feet of the lot line of any lot in this district. Parking areas may be located within the side or rear yards of any lot in this district but not closer than twenty (20) feet to the rear or side lot line, except in no case shall any parking areas be permitted closer than 50 feet to any agricultural or residential district.

All interior parking, service and accessways, as well as all public peripheral streets, shall be constructed in accordance with Township highway specifications and in accordance with the Township Subdivision and Land Development Ordinance.[1]

All front yards to the depth of 100 feet for the entire frontage shall be maintained as green areas and/or open space and planted with grass, shrubs and/or trees except for necessary ways of access.

In side yards, the perimeters to the extent of no less than 10% of the legal lot width must be in green areas and/or open space, which may be distributed up to a sixty-to-forty proportion between each side yard, provided that in any case the minimum green area width on either perimeter shall be 20 feet. The legal lot width for the purposes of this Subsection B shall be the mean of the front line, the rear lot line and the width at the widest part of the lot or 300 feet, whichever is greater.

In the rear yard, the minimum green area and/or open space shall not be less than the minimum side yard requirement.

Ten percent of all paved parking areas on each lot shall be devoted to green areas, which must be interspersed within the paved parking areas. Perimeter green area shall not be included in the computation of the said 10%.

All lots must conform to minimum green area and/or open space requirements set forth in Article XXIX.