Swinerton provided general contracting services for the construction of a new five-story mixed-use building. It provides high-performance, lab-ready office space for future buildout of the core and shell.?The?mass timber office building incorporates 65,000 square feet of programmed outdoor space integrated into each level, including private decks and plazas that connect to the Burke-Gilman Trail. It also has 8,000 square feet of retail and restaurant space, over 200 bicycle parking spaces, 165 motor vehicle stalls, and dedicated storage space for kayaks and other watercraft.?The building is set over a concrete podium that houses a parking garage and a warehouse.

Swinerton’s mass timber subsidiary, Timberlab delivered?the?mass-timber structural system via cross-laminated timber, glued-laminated columns, and girders.?With 167,000?square feet of mass timber office and lab-ready space, steel buckling-restrained braced frames are a key component of the lateral system and are expressed in contrast to the timber structure. This LEED??Platinum project is one?of the first mass-timber structures in the area.

Swinerton provided general contracting services for the construction of a new eight-story workforce housing building. The project was constructed in collaboration with Timberlab, a Swinerton-affiliated company. Utilizing cross-laminated timber (CLT) with exposed glulam beams—which lowers the overall carbon footprint of the structure—Heartwood will be 4-Star Built Green Certified.

Heartwood is an expansion of Community Roots Housing’s existing affordable housing development, Helen V. As a whole, it is filling a critical need for middle-income housing in Seattle. Not only is Heartwood the first mass timber workforce residential development in the City of Seattle, but it is also the first Type IV-C tall wood building to be entitled and permitted through the City under the newly adopted IBC codes. It is also one of Washington’s tallest CLT buildings of any kind.

Heartwood features 113 studios and 13 one-bedroom apartments ranging from roughly 300 to 500 square feet each. It also features a lobby, retail space, fire pit and barbecue area, and multiple bike storage rooms totaling roughly 100 stalls. Included in the scope is the addition of a new courtyard and pedestrian connectors totaling over 2,800 square feet. These elements are shared by Heartwood as well as the existing Helen V development.

The project received a $250,000 Wood Innovation grant from the U.S. Forest Service to validate Type IV-C multifamily housing feasibility. Swinerton and Timberlab supported the grant application and joined the client and atelierjones, the architect, in a design-build capacity for its overall construction, including the mass timber structure.

Both firms partnered with the structural engineer throughout the design phase to determine the optimal unit layout and structural grid to meet the project’s budget and program needs. Both firms also led meetings with the Seattle Department of Construction & Inspections to evaluate this new construction typology and propose solutions that addressed fire and life safety systems during both construction and upon occupancy.

Heartwood is playing a historic role in Swinerton and Timberlab’s portfolios. It is illustrating how mass timber can be competitive in all types of housing developments, including affordable, middle-income, and market-rate, by establishing a known example that provides a successful path for future projects.

The new Campbell Global office space sits on the 32^nd?floor in the Wells Fargo Tower. Campbell Global, a timber investment company, wanted to showcase multiple wood elements throughout the office to highlight their business. GBD Architects captured this idea in a beautiful design, creating a unique and high end space for Campbell Global. The main wood elements featured within the project are the CLT panel ceiling clouds, furnished and installed by Swinerton Mass Timber. Mass Timber played an integral role by bringing their knowledge & expertise of CLT to the unique feature element. The Swinerton self-perform Drywall team was also a key contributor. Collaboration between the management and drywall teams early on resolved a majority of the site questions & layout issues resulting in increased efficiencies and smooth project flow.

The Knight Campus will reshape the education landscape in Oregon by training new scientists with opportunities for undergraduate and graduate students. Swinerton Mass Timber provided engineering, procurement, and construction services for the 20,000-square-foot mass timber scope, including a two-story CLT mezzanine, three-story CLT connector bridge, and glulam/CLT staircases.

This 81,000-square-foot, three-level project features a structural steel frame with 56,000-square-feet of Cross Laminated Timber (CLT) floors and roof diaphragm with a BRBF lateral system. The city is to complete its new earthquake-resistant police and emergency management building. Swinerton is providing timber engineering services on the project for the Mass Timber/CLT scope.