Common fault on the front is upper [inner] side... but as others suggested it could be related to several points incl. notorious [as in annoying] anti roll bar bushes.
I'd suggest to take it to a 'decent' mechanic to have a look and inspect this for you and isolate an issue... FYI, I recently replaced all of them on mine and you'd be looking @ @450 for parts [OEM Lemforder] + 100ish for labour. And you'd need tracking so all in all should come to around 700ish GBP.
Expensive but worth the job if you are planning to retain the car
.
Hope that helps...