All options are being looked at Roz.
In the meantime, amazingly, Lewisham spend millions on the town hall http://www.bbc.co.uk/news/uk-england-london-12151924
and even more on buying shopping centres, despite the fact that other major projects haven't happened yet such as the Swimming pools in Lewisham, the "lewisham gateway 2000 project' (11 years late and counting) and even just changing the paving and some railings in Sydenham High street has taken longer than WW2 from concept to reality and is further delayed by yet another year.
Frankly, yes, we need to let Lewisham Council that Libraries are worth saving (Sydenham would have been closed by now as they wanted to 'dispose' of the building asap until the campaign highlighted just how important it was).
I'm not Impressed by Lewisham Council overall. Yes, they aren't all bad but there are some odd decisions going on at Catford towers and I'm amazed at how long it takes and how much red tape there is to do just about anything bar wiping your own…(I'll leave that up to your own imagination)