Building for the community

Sea Island Developments are specialists in developing modern and forward-thinking extra care housing. We enable people to live happily and independently in purpose built homes.

We do this by bringing people and resources together to create bespoke housing solutions, that meet local needs and priorities.

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Who We Are

Father and son Philip and Mark Walton, and son-in-law, Richard Ponton, created Sea Island Developments to build high quality homes for older people who need purpose-built housing and personalised support to live their lives to the full.

The inspiration for Sea Island came from Philip’s experience of organising care and support for his wife Diane in the last years of her life. Philip and Mark were profoundly affected by the challenge of adapting accommodation and managing care to ensure that Diane could continue to lead the best possible quality of life.

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What We Do

Sea Island works collaboratively with local authorities to develop extra care housing for older people where there is evidence of need. The company wants to bring its expertise and resources to this market because the team recognise that there is a significant unmet need which will only continue to grow. Of course, this is a business decision, but it is also a decision arising from a real desire to design and build homes that enable people – often with changing or complex needs – to keep their own front door.

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Extraordinary Developments

A snapshot of Sea Island's most recent projects


Sea Island has exchanged contracts on a site in Gainsborough. The development will provide 60 extra care apartments for older people.


Sea Island has exchanged contracts on a riverside site in Spalding in the South Holland district of Lincolnshire. The development will provide 67 extra care apartments for older people.

Hawkeys Lane

Sea Island has been granted planning permission for a site in North Shields to develop extra care housing for older people.