Business and professional offices.

Scientific and research laboratories, including incidental pilot plants for testing of products or materials as accessories to a research laboratory; provided, however, that in no case shall more than 25% of the total floor space of any building be devoted to such incidental use.

Retail sales and services only if conducted within the confines of the principal building and conducted only for the convenience of employees and visitors of the permitted principal building.

Public buildings of a governmental or cultural nature.

Institutional uses.

Public utilities subject to the procedure set forth in Subsection 34-13.8.

Accessory uses customarily incident to the above uses.

Height of Buildings. No building shall exceed three stories or 36 feet in height, whichever is the lesser.

Front Yard. There shall be a front yard of not less than 50 feet.

Side Yard. Each side yard shall have a minimum width of 25 feet.

Rear Yard. There shall be a rear yard of not less than 50 feet.

Storage. All materials and equipment shall be stored in completely enclosed buildings.

Minimum Lot Area. There shall be a minimum lot area of two acres and every lot must have a minimum street frontage of at least 200 feet.

Maximum bulk of buildings. The total floor area of all buildings on a lot shall not exceed 30% of the area of the lot.