Summary of energy and carbon reduction strategies:  An under-floor air distribution (displacement air) system improves thermal comfort because the supply air is delivered at a more comfortable temperature (64 degrees vs. 55 degrees when cooling is required for instance) and at a lower velocity.   

Thermal mass from cast-in-place concrete structure and exposed interior wythe of insulated precast concrete walls helps to even out temperature fluctuations within the building.

Insulated precast concrete walls with unique terra cotta exterior skin provide U-0.048 for approximately 53% of the overall wall area.

A high performance curtain wall system uses “Low E” double pane insulated glass with argon gas ( U-0.36, SHGC - 0.30) for 47% of exterior wall area.

Materials: use of recycled materials in as many products as possible such as recycled glass countertops fabricated from recycled glass collected locally; all wood is FSC certified; limestone reclaimed from site retaining walls repurposed for use as limestone seating benches around the exterior of the building.

The building uses a white TPO roof with a vegetated green roof on Level 4. This “cool roof” reflects significantly more sunlight and absorbs less heat than traditional dark-colored roofs, resulting in reduced building heat-gain, energy savings during times of the year that require air-conditioning, and extended service life of the roof.

Skylights and ample glazing to provide daylight to the building along with daylight sensors and controls to limit the need for lights during daylight hours.

Efficient plumbing fixtures save 42.14% compared to the LEED 2009 baseline.

Monitoring capabilities were added to mechanical systems to allow the measurement of energy usage for life of building:  

82.9 kBtu/SF/year predicted EUI excluding on-site renewable energy contribution

36% regional reduction per Energy Star Target Finder compared to ASHRAE 90.1, 2007 (60% reduction compared to Architecture 2030 Challenge Interim Code Equivalents)  

The site design incorporates subtle strategies to treat stormwater without creating large rain basins that would distract from the formal design aesthetic. Rain basins are incorporated throughout the groundcover and planting beds to clean runoff and direct it to storage zones underneath the project parking lots.

In addition to the aesthetic benefits the green roof provides to the upper floor offices and outdoor terrace, it also helps to reduce the stormwater volume leaving the roof.  

100% precipitation managed on site 0 % waste water reused on site 1.65 Gallons/SF/year predicted annual regulated potable water use 42% regulated potable water reduction from baseline