The Dominion Building (originally Dominion Trust Building) is a commercial building in Vancouver, British Columbia, Canada. Located on the edge of Gastown (207 West Hastings St), it was Vancouver's first steel-framed high-rise. At 53 m (175 ft), the thirteen-storey, Second Empire style building was the tallest commercial building in the British Empire upon its completion in 1910. Its architect was John S.