CurlConnoisseur
Historical satellite and street imagery suggests the building underwent a major reconstruction sometime in 2018. As part of this renovation, the main entrance seems to have been moved from facing Geddes to face Oxford. The house numbers on the new entrance show 505 Oxford to be the address of the new entrance, and 1814 Geddes used to be the address of the old (now removed) entrancem with 1814 Geddes still remaining a valid address for this building.
I have removed the address tag from the building, and placed two separate address points on the building to allow to finding both addresses.