Originally Posted by cockneypaul
It's not got it's adult colours yet and babies can be a bit variable but what you have got there is a common wall lizard Podarcis muralis.
It's not a British native and shouldn't be released into the UK (not good for the lizard and illegal for you)
I don't think you will find any care sheets for them but they are a reasonably hardy species and would have the same requirements as the bigger lacertids. Try looking up care sheets for eyed lizards, Balken green lizards and green lizards.