Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what information his Department holds on the number of people who live in residential houseboats in permanent moorings in (a) London and (b) England.

The Department does not hold such information. Navigation authorities are responsible for operational matters on their waterways, including issuing licences for permanent moorings on their waterways. This does not necessarily involve recording the number of people living on a boat.