The proposals in the Sydney Metro Strategy for 420,000 new higher density brownfield dwellings represent the most significant planned re-structuring Sydney will have faced in 100 years. Its impact will be long lasting and substantial – and the solution to Sydney’s environmental sustainability will largely lie with the urban renewal of its older areas. This number does not include the numbers of existing homes that will need to be demolished to make way for this targeted new output. The actual target will be in excess of half a million new homes in existing areas. But having made some heroic statements about the numbers needed to meet predicted housing demand for the next 25 years, the lack of any real strategic thinking in Sydney Metro as to how these might be delivered on the ground is beginning to be felt.