Trammell Crow Co. (TCC), a commercial real estate developer, announced in September 2026 that it broke ground on Phase II of Sewell Corporate Park in Hillsboro, Ore., approximately 20 mi. west of Portland.
Phase II, located on 17.76 acres, will include two speculative buildings totaling 294,700 sq. ft. Delivery is scheduled for March 2027.
Phase II of Sewell Corporate Park was designed by MDG Architecture and is being built by Perlo Construction. Construction costs weren't disclosed.
The largest of the two buildings in Phase II, Building 3, is at 4615 NE Sewell Ave. and will measure 184,681 sq. ft. Building 4, at 4550 NW 273rd Ave., will measure 110,019 sq. ft.
Both buildings feature 32-ft. clear heights, trailer parking and abundant auto parking and power. TCC is also seeking LEED Silver certification on both buildings.
The groundbreaking of Phase II comes less than a year after Phase I delivered two buildings totaling 396,212 sq. ft. Building 1, measuring 148,751 sq. ft. was fully leased to Thermo Fisher Scientific and Oregon Electric Group. Building 2, measuring 247,461 sq. ft., remains available.
“We remain the most active developer in Hillsboro and the Sunset Corridor with the recent groundbreaking of phase two of Sewell Corporate Park, a development focused on serving the needs of west side high tech businesses and the companies that serve them,” said Steve Sieber, a principal with TCC in Portland. “Sewell Corporate Park Phase II benefits from a premium location in the north Hillsboro tech cluster, top-of-market design, immediately available power, and a business-friendly city providing Enterprise Zone tax benefits, all of which result in real cost efficiencies and savings for tenants or buyers.”
Elsewhere in Hillsboro, TCC is under way with VanRose Technology Center, a speculative, cross-dock, 303,969-sq.-ft. logistics building at 2625 NE Huffman Road.








