The Law Society has published a practice note to help conveyancers protect the owners of an estimated five million properties at risk of flooding.

The move follows the month-long extension of a statement of principles agreed between the government and insurers, under which insurers guarantee affordable insurance cover to all properties, including those at high risk. The agreement now expires on 31 July.

Jonathan Smithers, chair of the Society’s conveyancing and land law committee, said the changes could mean higher premiums and increased uncertainty for buyers and sellers.