Two in my current house, built in 1930. Two that I know of in my previous house, built 1986, one that I know of in my flat before that, built 1976.
My wife claims to be sensitive to such things. She hated the flat, said she felt like she was always being watched and would never sit in an armchair in the living room. I’ve since found out from a mate who’s a funeral director, that that chair location is where the old fella died in his armchair.
Previous house wife felt better about, but still not completely comfortable. Current house we both love. We’ve research the history and exchanged letters and photos with the granddaughter of the original owner. The lady bought it new in 1930 and lived in it until 1992 when she died. Her husband died in 1960 something. It’s had two families in it since and all have loved living here apparently. Very different vibe the the other two properties such that even I, a confessed sceptic, feel differently about it.