History Union Bank Tower

the south entrance in 2016, showing greenish-gray slate covers portions of building

in 2008, bank of tokyo-mitsubishi ufj acquired 35 percent of union bank had not owned, , union bank of california became mufg union bank, uses branding unionbank . subsequently, portland building became unionbank tower.

as of 2012, building owned both melvin mark companies , downtown development group. in 2012, owners turned subbasement level fourth level of underground parking, increasing number of parking spaces 84 total of 339.