It's a take-home of about £3700/month, assuming normal tax and a decent pension contribution. And yes, you can live well on that, but as Markie points out, rent will be by far your biggest expense.
Note that, if you do live further out, v you should look at commuting expenses too, particularly of you're considering living outside greater London. I have a great, fast train to take me to London (30 minutes non stop) but I pay £4300/year for the privilege, and that doesn't even include the tube...