In a speech revealed to the AJ, Edinburgh World Heritage director Zoe Clark gives black marks to four developments that most threaten Edinburgh's historic centre.
Those that could undermine the city's historic fabric include Foster and Partners' plans for Quartermile and Alan Murray's Caltongate, Clark claims. Her pronouncements coincide with the ten-year anniversary of the heritage site.
'These [developments] should result in world class examples of design which respect the special character of our historic city and represent a 21st century contribution to our rich and distinctive historic environment,' she said.
'But equally they could be lumpy eyesores which are functional but contribute nothing to what makes Edinburgh the really special place it is.'
Edinburgh architect Malcolm Fraser echoed this sentiment. 'This is a World Heritage City too big and alive to become the wall-to-wall open-air pizza parlour that is the fate of others,' he said.
'Instead we should and might, if we work together, understand that here the interests of heritage and development are not separate - and that by extension they are not separate anywhere,' he continued.