The Prince's Foundation, the organisation set up to lobby for the Prince of Wales' traditional architectural views, is set to work on the reconstruction of hurricane-ravaged New Orleans.
On Wednesday Charles dedicated a $30,000 (£17,000) architecture prize - the Vincent Scully Prize - to the rebuilding efforts.
And he announced that the foundation would be actively involved with the redesign of whole swathes of the city, which was flooded in the aftermath of Hurricane Katrina in August.
This will be seen as a significant victory for the campaign for traditional planning and architecture in North America, which is headed up by the Congress for the New Urbanism.
The Prince said yesterday: 'My wife and I were utterly horrified to see the terrible scenes of destruction wrought by the hurricane across New Orleans and the surrounding area.
'Tomorrow we will have the opportunity to meet some of the brave and resilient people trying to rebuild their lives and to pay tribute to the astounding efforts of emergency workers.
'I only hope my foundation can play a small part in the work that is under way to begin the reconstruction,' the Prince added. by Ed Dorrell