Nicholas Soames: To ask the Secretary of State for Communities and Local Government what guidance he offers the building industry on the need to promote water efficiency in new housing. [94690]

Andrew Stunell MP; Parliamentary Under-Secretary of State: The Building Regulations set a calculated whole building performance standard for water use in new homes, currently at 125 litres/person/day. The Department publishes statutory guidance on how to comply with this requirement in “Approved Document G” to the Building Regulations.

The Department publishes a “Technical Guide to The Code for Sustainable Homes” for use in evaluating the water efficiency of new homes.

In order to help developers demonstrate that the water performance of the building is less than the limits given in the Building Regulations and the Code for Sustainable Homes, the Department publishes a calculation methodology in the “Water Efficiency Calculator for New Dwellings”.