I remember this day last year very clearly as it was us anxiously waiting to hear which school we had been given. Good luck to all of you today - I hope you got an outcome which suited you.
If you haven't already, it might be worth logging on to the system even if you haven't had an email prompting you - we got our email about two hours after finding out this way!
Here's the link to some information from Lambeth Council about offer day, how to appeal etc:
lambeth.gov.uk/schools-and-education/school-admissions/apply-for-a-primary-school-place-for-201718