Thanks very much for the replies, thank you James for contacting the local councillors, much appreciated. Indeed, all perspective parents were told that there would be a bulge class and building works were confirmed to take place to accomodate this. As a consequence, and because it's a great school, it was our first choice - not least because we were so often told to not only put down the school we'd ideally like our child to go to BUT also one that we had the most chance of getting in to. It's likely that our list would have looked differently had Lewisham not confirmed there would be an additional class. I only hope the reason is that something else exciting and plausible is happening instead.