Register on 5fields.org and join your local groups and forums. We’re doing this the old-fashioned way at the moment to stop spam accounts, so it may take a short while for your registration to be manually approved. You can speed it up by providing a little info or using the comments box to confirm that you are a decent human being, residing or doing something in Pimlico.
It would also help if you can tell us your residents’ association, if appropriate.