TWO BALLSTON PLAZA General Description Commuter convenience and a unique angle on a classic contemporary façade marks Two Ballston Plaza as an outstanding business location. Its 11 floors offer just over 220,000 square feet of prime office space. The building management and engineering staff are located on site to maximize the property’s efficiency and to satisfy tenant requests. The Plaza facilitates busy workstyles with a range of available services, including a bank, a restaurant, a convenience store and deli, a dry cleaner and an exercise facility. The building is conveniently located adjacent to the entrance of Interstate 66 and offers a complimentary shuttle to the Ballston Metro station and Ballston Mall. Keyes, Condon, Florance Architects
Design Architect General Contractor Mechanical Engineer Structural Engineer Completion Date Building Height Design Load Rentable Area Typical Floor Area Ceiling Heights Mullion Spacing Interior Column Spacing HEATING, VENTILATION AND AIR CONDITIONING Tiber Construction Company
G.H.T. LTD Mechanical/Electrical Engineers
Tadjer‐Cohen Associates
1988 11 stories 80 pounds per square foot office live load, plus 20 pounds psf for partitions 100 pounds per square foot ground live load, plus 25 pounds psf for partitions 100 pounds per square foot corridors and lobby 30 pounds per square foot roof live load 100 pounds per square foot roof deck load 50 pounds per square foot garage deck load 100 pounds per square foot stairs & balconies 150 pounds per square foot elevator machine room Approximately 223,000 SF
Approximately 23,000 SF (floors 2‐3)
Approximately 20,000 SF (floors 4‐11) Slab‐to‐slab heights on office floors average 12’
Standard floor to ceiling height is 9’ 5 feet Vary from 20’ to 40’ on center.
The building’s heating ventilating and air conditioning (HVAC) system consists of water‐
cooled, direct expansion air conditioning units located on each floor, variable‐air‐volume (VAV) boxes located above the suspended ceiling in the occupied areas, cooling towers, rooftop exhaust, and fresh air fans. Design Criteria Heat Air Conditioning Standard Hours of HVAC Operation ELECTRICITY General Electric Closet Telephone Closet PASSENGER ELEVATORS Number of Elevators Elevator Capacity Elevator Speed SERVICE ELEVATORS Number of Elevators Elevator Capacity Elevator Size The building's HVAC systems are designed to meet or exceed Arlington County Building Code requirements. COOLING: Interior Space Conditions/Outdoor Air Condition 76F +/‐ 2 degrees F Dry Bulb/Less than 89 degree F Dry Bulb 50% Relative Humidity or 74 degree F Wet Bulb HEATING: Interior Space Conditions/Outdoor Air Conditions 72F +/‐ 2 degrees F Dry Bulb Greater than 5 degree F The building contains VAV boxes (approx. 65/floor) with electric resistance heating coils, with heating capacities ranging from 2kW to 4kW which provides heating to the perimeter areas. The building contains one water‐cooled air conditioning unit per floor on floors 4 through 11, and two water‐cooled air conditioning units per floor on floors 2 and 3. All of the units are manufactured by Bohn. The capacities of the units on floors 4 through 11 are 65 tons and the capacities of the two units each on floors 2 and 3 are 35 tons and 55 tons. 8:00 AM to 6:00 PM, Monday through Friday
9:00 AM to 1:00 PM, Saturday Supplemental HVAC is available 24 hours a day. Building‐standard power consists of 5 watts per usable square foot at 80% continuous load capacity, provided by Dominion Virginia Power. The main service is distributed to main electrical rooms in the building. The service consists of a 4,000 amp service at a voltage of 277/480 volts. The tenant floors of the building are fed by a 3,000 amp, 277/480 volt bus ducts off of this main service. 1 per floor 1 per floor 5 elevators with access to all floors.
3,000 lbs. passenger
500 FPM (ft. per minute)
1 3,500 lbs. 60 in. long, 80 in. wide, 100 in. height
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Restaurant and exercise facility in building Banking, deli, convenience store, dry cleaners on site Shuttle to Ballston Metro Station and Ballston Mall Restaurants, hotels and shopping nearby Underground parking On site management and engineering