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Caroline Tobin in her Downtown Seattle Walking Tours (1985), indicated that the Equitable (Holland) Building was first built in 1918.

The Holland Building had four stories when it was erected in 1909, and provision for four more stories was made at this time. In 1923, the four additional stories were added, but this caused serious structural cracking of interior columns. Shores were added to the building to relieve the columns of their loads. Investigation of the concrete columns indicated that a pour mixing job occurred in 1909, and that the column capitals were composed primarily of porous sand and the denser aggregate had sunk to the bottom. Arthur Wheatley (d. 1948) was the architect for the 1923 addition.

PCAD id: 11161