IKEA Centennial is the first U.S. IKEA store to integrate a geothermal system. This technology involves drilling 130 holes – each 5.5 inches wide and 500 feet deep – into the earth for pipes holding heat-transferring liquid circulating through underground loops to either warm-up or cool-down the temperature inside the store. All of this equates to the one of the largest geothermal systems in the U.S.

In addition, the facility has a 60,000 sf solar array consisting of a 498-kW system, built with 2,212 photovoltaic panels, and will produce approximately 740,000 kWh of electricity annually for the store, the equivalent to reducing 586 tons of carbon dioxide (CO2).

The project was completed approximately 3.5 months early.

An anticipated LEED-CS Gold building, it features panoramic water and mountain views, a location amidst City and County offices, and excellent access to transit and Interstate 5.  The exterior closure elements consist of precast concrete, granite, and glass curtain wall and outside decks.  Indoor parking includes 210 spaces on four levels.  An outdoor deck is open to tenants on the 17th floor.

The site is one of the most difficult in recent memory, with a 25% grade (too steep for streets!), soil conditions comprised of debris from I-5 construction, and the flightpath for helicopters to Harborview Medical Center – making this “impossible” property work for a new tower was a great story from the developer, designer, and contractor perspectives.

A 90′ John Henry sculpture has been installed along 5th Avenue – a new landmark for Downtown Seattle.

Lewis has completed a 280,000 square foot, six-story office building in Seattle’s Pioneer Square district at 505 First Avenue South.  The difficult landfill site includes heavy groundwater, which the design addresses with an innovative CSM shoring wall, Seattle’s first.  The project will achieve LEED-CS Silver. We recently completed this project weeks in advance of the contract date.

ORRICK Herrington Sutcliffe

This 10,000 square foot first generation tenant improvement for Orrick, an international law firm, features four partner offices, 11 associate offices, six staff stations, a large conference room, teleconferencing room, small meeting rooms, lounge, a work room and break area.

The corridors are open and airy remaining open to the structure 16 feet above.  The space incorporates many elevation changes and soffits. The main entry wall, conference walls and office walls are 11 foot tall glass, with 10 foot 10 inch tall doors, both made of wood and glass and the conference room has a top hung sliding glass door on the all glass wall.  Specialty lighting throughout, includes custom fixtures and the restrooms are finished with stone flooring and granite counters.

PPM Energy TI

This one-and-a-half-floor project in Block Four of Portland’s Brewery Blocks provided PPM Energy with 31,476 square feet of new office space, adorned with suspended glass art and upholstered wall panels. Construction occurred as the project’s design continued to evolve, in order to compress the schedule to meet the client’s lease terms. In a second phase, we built out an additional 6,000 square feet on the 6th floor, to provide more offices and an improved lobby.

GBD Architects Office Expansion

Lewis recently expanded GBD Architects’ existing office in Portland’s Brewery Blocks development. The project focused on sustainability and was designed for LEED Commercial Interiors. Construction took place while the office was occupied and included the addition of new office space, a printing room, three conference rooms and a large glass overhead door.

The sophisticated multi-floor HVAC System is a roof mounted, central HVAC plant with floor-by-floor air handling units and a fan powered VAV air distribution system.  To meet electrical needs, the building is fed with two separate 3000 amp normal power bus risers equipped with harmonic reducing transformers (for computer loads) as well as a separate 1200 amp emergency power switchboard, backed by a 750 kw generator.

The interior lobby features stainless steel, birdseye maple paneling, and granite finishes truly making it a Class A building.