Remembering the criticisms Paul Nuttall received in 2017 for owning a house in Stoke-on-Trent for a by-election and not living there, was the same requirement to live in the electoral constituency you are running in also around in the mid-20th century?
Enoch Powell’s first attempt to get elected was in the former Normanton constituency, but I’ve never heard people alive at the time recall if he lived there. It would be of interest to local history to find his house, despite his notoriety.
In case anyone’s wondering, I checked newspaper coverage - he caught the flu and there was a snow storm so he had someone else campaign, saying the NHS is part of a Nazi plot because welfare is evil.
There is and has never been a legal requirement for Members of Parliament to live in their constituency or indeed even in the country. It's generally considered a good idea for a Party Candidate to live in a constituency as it shows that they are committed to representing the local area and also have experience of the same issues as their constituents. I believe in the case of Paul Nuttall he put down a house in the constituency that he didn't actually live in on his nomination forms for this very reason, but it was discovered that he was very rarely there, if at all.