Building on flood plains - and on the coast - is controversial:
Futures Forum: Flooding: "stop building houses on flood plains" ... ... ... "and find a balance between the needs of our wildlife, the threat of an increasingly wet climate and the requirement of food production."
Futures Forum: Flooding and building houses
Futures Forum: Flooding in the West Country... and development
There are further complicating issues:
How do we cope with the demands of a growing population?
Futures Forum: East Devon's population
How do you determine how to 'use' a piece of land?
Futures Forum: What motivates nimbyism? Who benefits from land-use classification?
This piece from the Central Association of Agricultural Valuers looks at these issues - and argues for the need for joined up policies:
Policies needed to tackle land use pressure, warns CAAV | agri-hub.co.uk