Agreed, it does sound like a shame. It seems that it is one of 2 local centres earmarked for closure and that youth services are to be outsourced (from Jan 2015 but most recent reference I could find on Lewisham Council website):
http://www.lewisham.gov.uk/mayorandcounc...gGroup.pdf

Interesting that only Perry Vale ward is to be kept informed about this given that the facilities are surely of equal interest to Crofton Park and Forest Hill. It is hard to make a call on this without knowing what the proposed alternatives are - it seems the centre will remain but just not for youth services but that is just a draft document.