The guidance which set out the current assessment process and the performance standards required for the Code is: The Code for Sustainable Homes: Setting the Sustainability Standards for new homes that was published on 27 February 2008.
The Code for Sustainable Homes: Technical guide sets out the requirements for the Code, and the process by which a Code assessment is reached. It aims to make gaining a Code assessment as simple, transparent and rigorous as possible.
The latest version is the ' 2010 ' Technical Guidance (see downloads section below) which comes into effect from the 11 November 2010. It replaces the 'May 2009 Version 2' of the Code Technical Guidance (see Archived publications section below). A summary of the main changes made to the Code are provided in The Code for Sustainable Homes: Summary of the changes to the Technical Guidance - 2010 publication (see downloads section below).
In order to establish whether the previous or the new version of the Code applies for you, please see The Code for Sustainable Homes:Transitional Arrangements (PDF 30Kb) guidance document
The Code for Sustainable Homes now also uses the 'Water Efficiency Calculator for New Dwellings' (see downloads section below) as the Assessment Methodology for WAT1. The Water Calculator tool (Excel, spreadsheet) is available below to download and use.
Note: The Calculator is not a design tool for water supply and drainage systems. It is also not capable of calculating the actual potable water consumption of a new dwelling. Behaviour and changing behaviour can also have an effect on the amount of potable water used throughout a home.
The latest technical guidance is a priced publication available from RIBA Bookshops Mail Order, 15 Bonhill Street, London, EC2P 2EA. Order through the orders telephone line: 020 7256 7222, Fax: 020 7374 2737, Email: firstname.lastname@example.org or visit the RIBA online bookshop to buy.
Full Technical Guidance (2010) (PDF 3.43MB)
Summary of Changes to Technical Guidance (2010) (PDF 277Kb)
Water Efficiency Calculator for New Dwellings (PDF 220Kb)
Water Calculator tool (Excel, 4,332kb)
The technical guidance is amended as necessary on a six-monthly basis to reflect changes in materials, building techniques and as a result of feedback from assessors and industry.
Previous Technical Guidance (May 2009 Version 2) (PDF 1.5MB)
Full Technical Guidance (October 2008) (PDF 2.6MB)
Previous Technical Guidance (April 2008) (PDF 2MB)
Addendum to Technical Guide (April 2008) (PDF 227Kb)
Previous Technical Guidance (March 2007) (PDF 2Mb)
The following publication was the launch document ‘The Code for Sustainable Homes – A step change in sustainable home building practice’ published in December 2006. For current information relating to "The Code" refer to the 'The Code for Sustainable Homes: Setting the Sustainability Standards for New Home' and for technical guidance refer to latest 'Code for Sustainable Homes:Technical Guide'.