As a company, DPR Construction has a deep-seated commitment to sustainability, its employees, and the communities it serves. A couple of years ago, when the lease for its Phoenix office came up, the firm seized the opportunity to create an ultra-green environment for its 101-person Phoenix office and field staff.
Working with A/E firm SmithGroupJJR, DPR converted a vacant 16,533-sf one-time “adult-themed boutique” in the city’s reemerging Discovery Triangle into a LEED-NC Platinum office, one that is on target to be the first net-zero commercial office building in Arizona.
The Building Team—including sustainability consultant DNV KEMA and consulting structural engineer PK Associates—forged numerous paths to energy reduction. They used an 87-foot zinc-clad solar chimney to create a convection current that draws air into the building through four evaporative cooling “shower towers” equipped with internal misters and showerheads. The pre-cooled air then flows through the open office space, and hot air exhausts back through the chimney.
PROJECT SUMMARY
DPR CONSTRUCTION, PHOENIX REGIONAL OFFICE
Phoenix, Ariz.Building Team
Submitting firm: SmithGroupJJR (architect/MEP engineer), in conjunction with DPR Construction (owner/developer/GC)
Structural engineer: PK Associates Consulting Structural Engineers
Sustainability consultant: DNV KEMA Energy & SustainabilityGeneral Information
Size: 16,533 sf
Construction cost: $3,762,000
Construction time: February 2011 to October 2011
Delivery method: Design-build
Twelve eight-foot-diameter fans, three oversized roll-up doors, and 87 operable windows installed along the east and north façades further support the building’s passive cooling system. Eighty-two solar optical tubes bring additional daylight into the workspace, helping to cut artificial lighting by 70%.
LEDs provide exterior site lighting, but the team decided against using LEDs on the interior because they did not meet the project goal of a maximum 10-year return on investment. A phantom-load reduction “vampire” switch cuts off 90% of plug loads at night.
The tally: Net energy use intensity was cut to 28.85 kBtu/sf/year; lighting power density was reduced to 0.96 watts/sf. Net-zero energy was achieved through the installation of a 79.6 kW PV-covered canopy over half the parking lot.
To further its commitment to the community, DPR has opened its building to host meetings for local business groups, students, and nonprofit organizations. +
Related Stories
| Aug 7, 2012
McCarthy tops out LEED Platinum-designed UCSD Health Sciences Biomedical Research Facility
New laboratory will enable UCSD to recruit and accommodate preeminent faculty.
| Aug 7, 2012
Pankow names Lum new CEO
Lum joined Pankow in 1980 in Hawaii and has held leadership roles in Pankow’s Honolulu and Northern California regional offices and was appointed president of the firm in 2009.
| Aug 7, 2012
Suffolk Construction builds new Boston Tea Party Ships & Museum
Construction management firm links history with the future by building museum using state-of-the-art virtual models and BIM technologies.
| Aug 7, 2012
Essex Builders to build church in Somerville, Mass.
The project’s design documents were prepared by Boston Bay Architects and reflect the church’s mission to serve the broader community as well as worship.
| Aug 6, 2012
Johnson Controls GWS appoints Genemaras as COO
Genemaras brings a wealth of experience in international business operations.
| Aug 6, 2012
Welton promoted to principal in Thornton Tomasetti’s Denver office
Welton serves as the manager of the firm’s Denver office and has more than 30 years of structural engineering experience across a range of project types including sports, commercial and residential.
| Aug 6, 2012
Kibby has joins the Harmon team
Kibby has over 24 years of experience in the glazing industry, coming to Harmon from Architectural Wall Systems where he worked in business development.
| Aug 3, 2012
Goettsch Partners opens new Abu Dhabi office
The GP Abu Dhabi office is managed by Steven M. Nilles, FAIA, LEED AP, a partner in the firm and resident of Abu Dhabi.
| Aug 3, 2012
Pinto promoted to VP in Thornton Tomasetti’s Philly office
Project experience includes commercial and residential buildings, government facilities, sports venues, airports and hotels.
| Aug 3, 2012
Nonres construction spending to increase through 2012, growth projected for 2013
Commercial and industrial projects poised to lead building sectors.