[8] The building's name is derived from former anchor tenant, Pacific Western Bank of Oregon, owned by PacWest Bancorp.

[13] During a windstorm in December 2014 a piece of sheet metal blew off from the tower and damaged the neighboring Standard Plaza.

[14] Ashforth sold the PacWest Center in 2016 for $170 million to LPC Realty Advisors I LP.

[15] PacWest is the fourth largest office building in Portland with 491,528 sq ft (45,664.4 m2) of floorspace.

Law firm Schwabe, Williamson & Wyatt is one of the largest tenants, occupying the 15th to 19th floors.