The massive scheme for developer Capital & Counties has been submitted to Canterbury City Council for inclusion in its local plan.
Sitting on the south-western gateway to the historic cathedral city, the development would replace a number of shops and ageing business premises with a new mixed-use, mixed-density housing, retail and commercial quarter.
Aidan Potter, the practice's urban planning and infrastructure director, said: 'This new mixed-use quarter will be delivered through a mixture of new build, regeneration and landscaping.
'It's an important urban initiative in the continuing growth of Canterbury, and the creation of a neighbourhood of mixed urban scales on this large site, within walking distance of the historic centre, can be a springboard for further change to the urban, economic and transport structure.'
He added: 'We've delivered an urban scheme with a pattern of clear public, private and semi-private urban spaces, within which development can be phased to suit demand, and ensure a deliverable response to Canterbury's needs.'
Work is expected to start on site in 2008.