Here is an interesting post from Scout magazine about the architects Townsend & Townsend and the “diapering” design they became known for during the golden age of Vancouver building before the First World War.
Although they are not mentioned in the article, the Drive has three Townsend & Townsend buildings, none of which have the famous design. In fact, only one – the Alvarado Block on the corner of Commercial & Graveley — is in the their usual block style. The other two — 1511-1517 where the Shoppers Drug Store now is, and Joe’s Cafe — are very different creatures.
Good to know more about these folks.