The new Ebbsfleet Valley community has 10,000 homes along with new commercial, retail and leisure buildings, and BT will offer 100mbps broadband using fibre from this August.
This is the fastest ever speed offered to residential customers in the UK, said BT, and the first time the firm has put in fibre instead of traditional copper for a residential new build.
It says it already provides 120,000 businesses with faster fibre connections in the UK, and it is now under pressure from the government and users to make fibre more widely available, to make sure the UK does not fall behind other countries in the broadband stakes.
The Ebbsfleet broadband capacity will support high bandwidth applications such as multiple HDTV channels watched simultaneously, HDTV gaming, and near instant music downloads, said BT.
BT is also committed to increasing broadband speeds over copper, introducing services of up to 24mbps from this spring in limited areas.