The next wave of house building has been agreed for a Medway site that is set to house more than 5,000 people. St Mary's Island at Chatham Maritime already has 900 homes with 1,100 more planned. Work on the next development of 62 homes starts this year.
The riverside site is being developed as a flagship Thames Gateway project by the regional assembly.
Homes being built this year include 51 houses and 11 apartments - 25% of those are affordable housing for key workers.
The region is set to see massive house building in the next 20 years and as many as 578,000 new homes could be built across the South East by 2026.
South East England Regional Assembly has suggested an average of 28,900 new homes are built every year between 2006 and 2026.
The area covers Kent, Surrey, Sussex, Berks, Bucks, Hants, Oxfordshire and the Thames Gateway.
The plans are aimed at addressing a perceived lack of homes and of affordable housing in the region and are also a response to estimates that the population of the South East will have grown by 1m people by 2026.