I've seen at least one church in the northern end of Ottawa's New Edinburgh district that got turned into someone's personal house. There are likely more.

If/when the Pandemic restrictions are sufficiently lifted for such an expedition, I hope to take my camera round several of the older neighbourhoods to see how many converted ex-storefronts I can get imagery of. This, along with my ongoing quest to work up street name histories and the requisite imagery for that project.