Gordon has practical experience of many types of claims involving water damage or the risk of water damage. Typically, these involve flooding, for instance from the construction of man-made structures and moving soil. Poor drainage, damage to land drains and siltation are other causes of flood damage which Gordon has worked on. He was one of the barristers in a major Court of Appeal case which continues to define the limits of liability for flooding.

He applies his expertise strategically, since the costs of these cases is at risk of getting out of hand without the right initial approach. Flooding-related issues are increasingly linked with climate effects, in particular issues connected with the coastline, reservoirs, and defenses to nuisance claims. Gordon has provided advice and representation in a number of cases concerned with the allocation of resources in respect of the coastline, and with damage and the risk of damage caused by flooding from reservoirs.