Brockley Central provides a useful breakdown of the costs of refurbishment spent on the town hall - http://brockleycentral.blogspot.com/2011...ffice.html
Most of the cost was for their boiler system, rewiring, and maintaining the roof. Not exactly frivolous spending or "age of vanity makeovers" (as Bob Neill put it), although it is surprising just how much it costs to maintain such buildings.
Of course Sydenham library could also do with a new roof, and Forest Hill swimming pool would not have fallen apart if it were properly maintained. But despite this, spending money on essential works in the the town hall has little to do with the question over how many libraries are needed in Lewisham, where they should be housed, and how they should be managed.