Cardiff (up itself bit of the centre of the city) -
Room - £400 pcm
1-bed - £750 pcm
3-bed - £1300 pcm
This is just around my area, and I am lucky to say that we’ve been renting for five years at substantially lower than market value thanks to our landlord being pretty hands-off and us agreeing to longer rental terms.
I kept the geography pretty tight on these averages because Cardiff has quite extreme variation (like most places) and I wanted to give a representative figure for near me.