I sort of wonder how much of the cost is deferred maintenance (capital versus operating). The pattern is that government starve public enterprises which actually adds to long term costs. The promise of a private sector solution usually does not result in lower costs. These projects will still be publicly financed. If private sector is so efficient why hasn't it already provided the necessary housing units? I am intrigued by your cost estimates. Do you have a public source for the information for the private  and public cost per unit?