"Building up" is spatially beneficial, but also councils should consider a buy back scheme aimed at buying back right to buy properties. This could be offered to anyone wishing to sell their ex-council property; i.e. couples with children who no longer live at home wishing to downsize & older citizens wishing to move into residential accommodation or who wish to retire somewhere peaceful'n'sunny!! There are so many under-occupied homes in Southwark & the new 'extra bedroom' tax is ridiculously unfair & greedy, whilst not actually solving or easing the strain on our housing problems. Councils could offer ex-council property owners a fairer deal than they could achieve selling privately; whereby they achieve the full value of their home but without any agency fees & a tax/stamp duty relief. Also, rather than raising rent/service charges on under-occupied council properties, actually offering alternative options would be far more acceptable to council tenants. Those with extra rooms could be offered an exchange or to downsize; with the option of being able to select viable properties & location of their choice (without having to use the bidding system). This would be a much better approach to tackling our boroughs housing deficiency. Householders and tenants alike, should not & would not, feel they are being deliberately forced into poverty/financial burden, and so forcing them out of their family home that they may have lived in for years! This is heartbreaking for most people, so offering other housing options -less aggressive actions on behalf of councils would be far more agreeable to our community.....