7272 WISCONSIN AVE
Overview
The 7272 Wisconsin Ave project is a mixed use building located in Bethesda, Maryland. The building consists of an office tower with ground floor retail. Parking will be provided in a garage with both below and above grade levels of parking. The project is designed to LEED for Core and Shell v2009.
Sustainable Sites
Site is located in a densely developed area with access to numerous community services. Transit access is a unique feature of the building since a new Metro Rail station is being built in the project’s adjacent plaza which will be integral to the overall site. Open space, including landscaped area and pedestrian hardscape, is 47% of the total site area. Open space includes pedestrian areas, green roof and other vegetated areas.
The stormwater management plan, which combines both green roof, and onsite bioretention, results in a 37% reduction in post-development runoff for the 2-yr 24 hr storm.
Water Efficiency
Landscaping is irrigated with a drip irrigation system, which helps to reduce water use by 55% compared to the LEED baseline. Green roof areas aren’t irrigated.
Plumbing fixture flow rates result in 36% water savings compared to the LEED baseline. This is achieved with the below flow rates.
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Lav faucets: 0.1 gpc sensor operated faucets
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Toilets: 1.28 gpf
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Urinals: 0.125 gpf
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Showerheads: 1.5 gpm
The above fixture flow rates result in approximately 1,012,652 gallons of anticipated water savings per year.
Energy Performance
The project’s energy model demonstrated 8.8% in energy cost savings compared to the ASHRAE 90.1-2010 baseline. Savings are due to the following energy efficiency measures:
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Efficient lighting design in parking garage is 0.10 W/sf.
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Lighting design for office core areas is 0.33 W/sf.
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Variable speed pumps (primary and secondary CHW loops); differential pressure reset for secondary loop pumps
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Frictionless VFD centrifugal chillers with 0.26-0.4 NPLV which represents a 30% better part-load performance over the baseline
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Efficient dedicated outside air (DOAS) units with energy recovery
Materials and Resources
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Construction waste recycling resulted in 94% of construction waste either recycled or otherwise diverted from disposal. The project recycled or diverted 8,942 tons of construction material.
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Recycled content materials total over 20% of materials, by cost.
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Regional content materials constitute over 50% of all materials, by cost.
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Forest Stewardship Council (FSC) certified wood products were installed for all doors, architectural woodwork and rough carpentry.
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A total of 41% of wood materials (by cost) installed in the building are FSC certified wood products.
Indoor Environment
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The project implemented a Construction IAQ Management Plan during construction. Absorptive materials were wrapped to prevent moisture damage during construction.
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Low VOC paints, coatings, adhesives, sealants and flooring were installed during construction.
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Composite wood products contain no added urea formaldehyde.
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MERV 13 filters have been specified for DOAS units serving the building.


