Mass timber could give a boost to Tacoma’s heritage district, up to 14 stories in fact, as part of a proposed $60 million multi-phased project that offers pedestrian-friendly, urban living complete with a mix of historic-style apartments, lofts, retail, restaurants and offices.
The first phase is already under construction, adding four new stories atop a former warehouse—soon to be home to 49 new apartments and over 10,000 square feet of commercial space—going up at a rapid rate of one floor about every eight days, thanks to the speed and agility of building with cross-laminated timber (CLT).
“This hasn’t been done in the state of Washington, this type of construction or the height,” says Troy Spurlock, Vice President of Construction of Horizon Partners, the firm spearheading the development. “It’s taken us three days to erect a floor of panels, versus two full weeks and probably a 20 man crew,” he explains in an interview with the Tacoma News Tribune.
Dubbed Brewery Blocks, the project is set to transform six buildings across two city blocks, further contributing to the downtown revival of this mid-sized port city southwest of Seattle. The project will provide more than 200 units of market-rate housing, 75,000 square feet of Class A office space, and 42,000 square feet of retail and restaurants.
CLT, combined with a steel frame, was chosen for the distinct benefits and advantages it offers over concrete when looking to retrofit century-old structures. Because CLT is relatively light while maintaining load-bearing strength, it can be a good option for developers looking to boost density to existing historic buildings, which would be impossible with heavier materials, or require more expensive reinforcement. CLT’s wood grain can be left exposed, complementing and blending well with historic timber and masonry buildings, like Brewery Blocks. As a naturally renewable building material, when combined with adaptive re-use of existing structures, CLT can not only boost the height, but also the environmental sustainability of buildings.
The robust engineered timber product, sometimes referred to as a super plywood of cross stacked boards glued and pressed together, will be used in multiple buildings throughout the development, including a 14-story high-rise. The two-story restaurant on the corner of Commerce and 21st, the seven-story office building and the four-floor extension of Brewery Lofts residential units will all make some use of CLT.
In an article for the Daily Journal of Commerce Bartlett says, “a primary focus of the project has been to redefine life in Tacoma’s downtown. Once a place where people came only to work, many are now seeking a live/work environment that offers more. Horizon is proud to offer its contribution to the city’s steady and sustainable revitalization.”