Sustainable Development Means Taller Floors

This doesn't have to mean more storeys.  

Just a minimum floor height of about 4.5 metres. Not like this one which is about 2.7m - that's the Australian minimum standard, which is jolly but is too small if adhered to strictly. 

Tall floors means buildings are cared for more and get more up-cycled. This one will probably get demolished.  

'Character houses' with 'tall ceilings' never get demolished.