[6][7] At the time of its completion, in September 1920, the building was the largest in the city,[3] as measured by floor space, which was approximately 569,000 square feet (52,900 m2) originally.

The first floor was used primarily for loading and unloading of freight arriving and leaving by truck or rail and temporary storage of such goods.

[3] The Northwest Portland store closed in July 1976, and the building remained in use only for warehouse and mail-order functions and as a "catalog overstock outlet".

The "notoriously frugal"[10] Bill Naito liked the new name, because it meant that only the "W" and "D" of "Ward" in the huge 14-letter neon rooftop sign needed to be altered, with "P" and "K" letters.

A lender initiated foreclosure proceedings on a loan tied to the Montgomery Park office complex, owned by Unico Properties.

In August 2024, Montgomery Park was sold for $33 million to Menashe Properties, a family-owned real estate firm.