Campaigners have held a public meeting to fight plans for a new town in the Sussex countryside.
Developers have earmarked land near Henfield for seven thousand homes and businesses.
Mayfields recently signed what's called a Planning Performance Agreement with Horsham District Council. They told us:
But protesters say the area is totally unsuitable. Brian O'Connell from Locals Against Mayfield Building Spraw says the area is a floodplain.
That review of the local plan is due to be published for consultation this autumn.