Just been doing a little house-hunting in Denver, CO – yes the family H is about to move. Wandering around the first house that was empty of furniture I noticed the odd receptacle around a room that was ground hole up rather than the majority which were ground hole down. Suspecting that some homeowner had been doing private work, and thus keeping my eye out for other potential ‘issues’, I pointed this out to the agent.
She told me that, in this area, the switched receptacles were identified in this way. I didn’t have anything to test this and don’t know if the whole duplex was switched or just one half.
How common is this practice elsewhere?
P.S. In one house I saw an absolutely terrible laundry relocation – looked like the plumber did it and he wasn’t a good plumber either!
P.P.S. Please note the post title is orientation neutral