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  Washington Public Utilities Districts Association
LEED® Platinum

Washington Public Utilities Districts Association, page 26Design Manager & Architect

Helix Design Group, Inc.
6021 12th Street East, #201, Tacoma, WA 98424
www.helixdesigngroup.net

General Description

Location: Olympia, Washington
Date Bid: June 2006
Construction Period: Sep 2006 to Sep 2007
Total Square Feet: 20,168 Site: 0.25 acres.
Number of Buildings: One.
Building Size: Subterranean, 8,912; first floor, 5,310; second floor, 5,946; total, 20,168 square feet.
Building Height: Subterranean, 9’4”; first floor, 14’;
second floor, 11’; total, 42’ from grade to roof.
Basic Construction Type: New/Wood Frame.
Foundation: Slab-on-grade. Exterior Walls: CMU.
Roof: Metal. Floors: Wood. Interior Walls: Wood stud drywall. 

Construction Team

Structural and Civil Engineer: Sitts & Hill Engineering, Inc. - 2901 South 40th Street, Tacoma, WA 98409
LEED Manager, Mechanical & Design/Build HVAC: Sunset Air, Inc. - 5210 Lacey Boulevard, Lacey, WA 98503
Electrical Engineer: Electric Systems LLC - 5011 S. Burlington Way, Tacoma, WA 98409
Plumbing Engineer: Tacoma Plumbing & Heating, Inc. - 1817 112th Street E, #G, Tacoma, WA 98445
Design/Build General Contractor: Mountain Construction - 7457 South Madison Street, Tacoma, WA 98409


Among the goals for the new headquarters for the Washington Public Utility Districts Association (WPUDA) was to enhance their public image as a good steward of both their financial resources and the environment, and broaden its leadership role in these areas by demonstrating that prudent, sustainable design is "practical thinking" and not "fringe thinking".

The home of Washington's 27 Public Utility Districts, the WPUDA achieved this goal and more with their new headquarters earning the LEED(R) Platinum rating, the first in the State of Washington.

The program requirements were accommodated within the quarter-acre brownfield development site by incorporating below-grade parking and construction close to property lines and adjacent buildings.

The design reflects the residential quality of the surrounding neighborhood while incorporating modern design elements as the area makes the transition to a more commercial district. The key design element for the project is the treatment of scale. The structure has been broken down into smaller, more residential elements, utilizing changes in materials/textures, setbacks and multiple wall planes, hipped roof planes and bracketed window awnings. The office windows are of a residential size and spacing while the glass entry facade reflects a more commercial quality.

Numerous innovative features were required to earn LEED@ Platinum, the highest available green building design rating, such as:

Solar power: 159 roof-mounted photovoltaic (solar power) panels projected to generate 40% to 50% of the building's power requirements.

Glass: Engineered glass assembly that reflects solar heat and 95% of harmful UV rays without darkening like tinted glass.

Water: The plaza water feature is fed by rainwater. Like a natural stream, it will be allowed to go dry in the summer. Landscaping is not irrigated.

Heat Island reduction: Roofing material reflects solar radiation and heat build-up in the urban area.

Natural light: Design, glass and skylights provide natural light to 90% of workspaces.

No off-gassing: Carpet, paint and other materials were selected to eliminate harmful chemical gases in areas where people work.

Heating/Cooling: Ultra high efficiency HVAC system with no ozone-depleting refrigerants, high pollutant air filtration and operable windows for healthy air.

Green Building Achievements
50% Renewable energy.
52% Reduction in generated wastewater.
61% Reduction in potable water use.
69% Energy optimization.
89% Construction waste diverted from landfills.
17% Recycled content of construction materials.
71% FSC certified wood.
59% Materials manufactured locally, and of those, 62% harvested locally.
90% Work areas with natural daylight.
100% Work areas with outside view.
   

Manufacturers

DIV. 7: Metal: AEP; Manufactured Siding: James Hardie.
DIV. 8: Windows: Milgard; Storefront: United States Aluminum.
DIV. 9: Carpet Tile: Shaw Work Life Collection.
DIV. 26: Photovoltaic Panels: REC Silicon.

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