Kent County Council is taking its fight against house-building in the area to a meeting of the South East England regional assembly (SEERA) on Monday.
The assembly is to vote on plans to build thousands of new homes in the region in the next 20 years.
Leader of Kent County Council, Sir Sandy Bruce-Lockhart, said current planning guidance allowed for 28,000 homes which was all the county needed.
"The problem is that SEERA proposals call for a 30% increase," he said.
"Of course we need more houses for Kent's own young people, first-time buyers and for more elderly people living alone, this is exactly what we planned for.
"The present regional planning guidance more than allows for this.
"Two-thirds of this figure is made up of the needs of the Kent and South East population to have more houses and one-third has been added to take inward migration into the South East counties from the north, the rest of the UK and abroad.
"What is the point in simply moving more and more people into an already overcrowded South East?"