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Key Development‘s Sideyard fits snugly into place as one of the final pieces in the rapid redevelopment near the Burnside Bridge‘s east end.

In many Portland neighborhoods, Sideyard would stand out as a five-story building constructed with cross-laminated timber and a modern, geometric envelope. But that isn’t so at the bridgehead, where Sideyard’s older sibling, Yard, looms 21 stories and the brightly colored, swirling fa莽ade of Guerrilla Development‘s Fair-Haired Dumbbell competes for attention.

Skylab Architecture designed Sideyard, and Andersen Construction built it. Catena Consulting Engineers provided structural engineering.

Cross-laminated timber manufactured by D.R. Johnson Inc. in southern Oregon supports the structure. The compressed wood panel products were processed by Cut My Timber, a Northwest Portland company.

鈥淚t’s not only a beautiful building; it’s a special location at the Burnside bridgehead,鈥� said Claudia Munk-von Flotow, chief operating officer of Key Development.

The location at 365 N.E. Couch St. offers two retail frontages 鈥� one on Third Avenue and the other facing the Burnside-Couch Couplet. Drivers traveling toward the bridge slow as they flow around Sideyard.

Key Development is well on its way to filling the approximately 25,000-square-foot building with commercial tenants. Ferment Brewing, which like Key Development is based in Hood River, will occupy one of the retail areas. Ferment focuses on traditional beer styles such as extra-special bitter, porter and saison; however, it also brews kombucha and makes a variety of pickled vegetables. Ferment will work with a chef-driven hospitality group on a food concept, Munk-von Flotow said.

Floors three, four and five offer approximately 5,000 square feet of office space at each level.

鈥淲e’re talking to a couple of creative agencies in town now to take all of it,鈥� Munk-von Flotow said.

Most likely, two tenants will take the three floors, she said.

鈥淣othing is inked, but we’re having serious conversations,鈥� she said.

Tamer Riad, a commercial broker with Debbie Thomas Real Estate, is representing the property.

Sideyard is part of an emerging generation of cross-laminated timber office buildings, particularly in the Central Eastside. The Portland-metro area is quickly becoming the premier one in the United States for cross-laminated timber construction. CLT is regarded as more environmentally friendly than concrete-and-steel and often is quicker to erect. The material lends itself to open-floor designs with exposed wooden beams that have proved popular with office tenants.

Andersen had limited elbow room to construct Sideyard. The parcel 鈥� known as Block 76 West 鈥� had served as a construction staging area for earlier projects. There was no such empty parcel for construction of Sideyard.

鈥淚t’s a postage stamp,鈥� Catena Consulting Engineers principal Jason Thompson said of the site. 鈥淐LT works well for that kind of construction.鈥�

At Sideyard, the use of concrete shear walls keeps lateral forces in check. Also, mass plywood is employed in the staircase.

For Key Development, Sideyard’s opening is a milestone. The developer first became involved at the Burnside bridgehead in 2010 by responding to a request for proposals from the Portland Development Commission (now Prosper Portland).

Key Development in December 2016 made a profitable exit from Yard, for $126.68 million to a Thailand-based investment firm. Munk-von Flotow said there are no plans to sell Sideyard.

鈥淲e’re not particularly interested in letting go of this jewel box,鈥� she said. 鈥淲e love this building. Our partners love this building.鈥�