Councillors from five coastal authorities have met to discuss homelessness.
Representatives from Brighton and Hove, Adur, Arun, Eastbourne and Worthing councils attended the meeting in Hove.
All of them agreed that the problems facing people in housing need were greater than ever before.
They are calling for action from the Government to give extra support to all councils on the Sussex coast.
The group will meet again, with representatives from Lewes, to consider a combined reply to the Government's regional housing strategy.
A spokesman for the group said: "Each council has its own housing strategy and policies for addressing housing need.
"However, we all recognise the position has a regional dimension and it is far beyond any council to resolve such an issue."
The councils are asking local MPs to work together to support the case for more cash for social housing along the coastal strip.
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