I sold during the last recession - 2 bed flat in Blackpool - I paid £42,000 for it, and after costs etc etc got £42,000 for it [enough to pay back the interest only mortgage ].
About 3 years ago a mate told me that 'my' flat in Blackpool sold for £130,000.
I was ****ed off because the mortgage was only about £250 per month, and I could have got about £400 per month rent for it.
The moral of the story, unless you absolutely HAVE to, NEVER sell property unless you make a big old profit.