Good luck with it Mark. I’ve not been to Carshalton for many years and once had a girlfriend living just outside Croydon.
My only advice is to keep overheads low. It’s often overheads that kill a business in its startup phase.
I found this link as well. Hope they can help? http://www.carshaltonmums.com/carshaltonmums/Welcome.html
Wishing you all the best for the future,