There's a huge rental and housing crisis going on and you'll find that stuff happening up and down the country, it's not specific to this neck of the woods.
I've lived in Heeley and Meersbrook for years until rent caught up and I had to move back up on the arbour. Recently I've been living in Bristol for work but I've just had to move back to Sheffield because the rental market is genuinely absurd down there. People are paying £700pcm for a room in a shared flat, no bills included.
Even before I moved down there last year, I was renting a nice flat in Meersbrook...same flat is on the market now...but for £725 instead of £550. That's a huge increase in less than a year, which means I'm now having to look at renting somewhere further out. When I rent somewhere further out (because it's more affordable) and other people do the same, then the rents go up in that area and people who were living there before eventually get priced out and have to move somewhere else...where the cycle repeats.
It's one of the worst aspects of capitalism. Those with less get pushed out of the way for those with more. It's crap, and it's particularly rife under this government.
Some very good friends of mine got priced out of Millhouses and ended up having to move to Clowne to get somewhere big enough for them, that they could afford. So they're now living in Derbyshire, and they're pretty annoyed at having to commute to work everyday...never mind having to change their kids schools.
Look at the bigger problem rather than just raging at other people who are affected by the same issues