More jobs and housing are promised for Newhaven as the result of a £19m funding boost announced this week.
A total of £10m has been secured for a new port access road and a total of £9m will be spent on flood defences with £6m being put up by the Environment Agency.
Both schemes will open up major sites for housing and jobs, as well as allowing the port to expand.
Leader of Lewes District Council Rob Blackman said: “This is a fantastic opportunity to create local jobs, improve key infrastructure and demonstrate the regeneration of Newhaven is well on the way.
“The growth deal is beginning to deliver projects worth millions and we were right to be confident in the benefits that councils working together and with our partners across East and West Sussex really does create a more powerful voice and deliver projects worth millions.
“The preparation of a strategic economic plan for the region has helped deliver investment for flood defences, international support for businesses across the region, major transport schemes and international trade opportunities.”
Both schemes will open up major sites for housing, employment and new harbour facilities.
Funding has come via the Government but has been secured by councils in Sussex working together to bid for money, grouping together in Local Enterprise Partnerships.
Leader of East Sussex County Council Keith Glazier said: “While this is excellent news for Newhaven, the benefit of regeneration in this area will be enjoyed by the whole of East Sussex and the South East.
“As a council, we are committed to encouraging growth in our communities, and believe the latest funding announcement demonstrates the importance of working in partnership to ensure our county gets the investment it deserves.”
In addition, to previously confirmed funding from East Sussex County Council of £13 million, the Coast to Capital Local Enterprise Partnership will invest a further £10m on the port access road and in partnership with the South East Local Enterprise Partnership will contribute £3m towards improving flood defences.
Investment in flood defences is expected to create around 5,000 jobs, while the port access road could generate as many as 335 homes, said Lewes District Council.
Work on Newhaven flood defences will start in 2015/16 and the new defences should be completed by 2017/18, the council added.