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 11, 2010
CHPS debuts high-performance building products database
The Collaborative for High Performance Schools (CHPS) made a new tool available to product manufacturers to help customers identify building products that contribute to sustainable, healthy, built environments. The tool is an online, searchable database where manufacturers can list products that have met certain environmental or health standards ranging from recycled content to materials that contribute to improved indoor air quality.
| Aug 11, 2010
ICC launches green construction code initiative for commercial buildings
The International Code Council has launched its International Green Construction Code (IGCC) initiative, which will aim to reduce energy usage and the carbon footprint of commercial buildings.Entitled “IGCC: Safe and Sustainable By the Book,” the initiative is committed to develop a model code focused on new and existing commercial buildings. It will focus on building design and performance.
| Aug 11, 2010
Green Building Initiative launches two certification programs for green building professionals
The Green Building Initiative® (GBI), one of the nation’s leading green building organizations and exclusive provider of the Green Globes green building certification in the United States, today announced the availability of two new personnel certification programs for green building practitioners: Green Globes Professional (GGP) and Green Globes Assessor (GGA).
| Aug 11, 2010
Potomac Valley Brick launches brick design competition with $10,000 grand prize
Potomac Valley Brick presents Brick-stainable: Re-Thinking Brick a design competition seeking integrative solutions for a building using clay masonry units (brick) as a primary material.
| Aug 11, 2010
Outdated office tower becomes Nashville’s newest boutique hotel
A 1960s office tower in Nashville, Tenn., has been converted into a 248-room, four-star boutique hotel. Designed by Earl Swensson Associates, with PowerStrip Studio as interior designer, the newly converted Hutton Hotel features 54 suites, two penthouse apartments, 13,600 sf of meeting space, and seven “cardio” rooms.
| Aug 11, 2010
HDR, Perkins+Will top BD+C's ranking of the nation's 100 largest healthcare design firms
A ranking of the Top 100 Healthcare Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Steel Joist Institute announces 2009 Design Awards
The Steel Joist Institute is now accepting entries for its 2009 Design Awards. The winning entries will be announced in November 2009 and the company with the winning project in each category will be awarded a $2,000 scholarship in its name to a school of its choice for an engineering student.
