scope:

This document sets out a framework for describing the potential impact of choices on sustainable development made regarding building materials, construction methods and equipment and people, operating energy, water services and sanitary systems for a house. It outlines a performance-based decision-making approach to assessing such impacts.

This document is intended for use in the evaluation of houses that can be separated from, or linked horizontally, to another house(s). Where houses are linked, and some sharing of services occurs, performance can be assessed both for individual houses, as well as a group of houses that are linked together.