They were here when we bought the house over a decade ago and I've always disliked them but haven't had the will to do anything about them until now. I thought I was going to regain about 1.5m of flowerbed, but because I have an odd shaped boundary I hadn't realised that part of my front garden had two rows of cypress, so I've gained a massive amount of space. It's triangular with about 1.5m as expected at the pointy end but about 4m (possibly 5m, I'm not great at estimating) at the wide end. My front garden looks bloody HUGE, mostly because of so much extra light coming in. I'm not sure what to put in there now.
I think the previous owners probably put them in for privacy but I'm the last house on a cul de sac so there isn't a huge need for an impenetrable hedge.
Google view for your delectation. The red lines are my boundary, the yellow is my next door neighbours boundary with the road and the blue is where I thought my boundary with the road was.