Wayne Colquhuon described Unesco's conclusion that 'the outstanding universal value of Liverpool's Maritime Mercantile City World Heritage Site is not threatened by the impact of new development' as a 'big disappointment'.
He said: 'The central core of the World Heritage Site is being eroded. The Three Graces at the pier head are being swamped by modern developments.
'It is civic vandalism,' added Colquhuon.
The reprieve means Liverpool joins Tower Bridge and Westminster, both of which learned yesterday (26 June) that they too would remain off the in danger list for at least another year.
Culture Minister David Lammy said: 'Much has been done to ensure that redevelopment respects Liverpool's magnificent cultural heritage, particularly through planning control based on a keener understanding of townscape characteristics and sense of place, and this will continue.'
Unesco's decision follows a visit to the city in October 2006, during which the impact of planning proposals - including 3XN's National Museum of Liverpool - was reviewed.