The Water Efficiency Calculator for New Dwellings
United Utilities encourage Developers to construct properties which promote the efficient use of water.
Where qualifying developments can be proven to be constructed to use 100 litres per person per day, or less, United Utilities will provide a reduced rate against the Water Infrastructure Charge (as published in their charges scheme).
This website contains an online water calculator that should be used by Developers seeking to take advantage of the scheme. Click here to start using the calculator.
The calculator follows the methodology set out in Appendix A "Water Efficiency Calculator for New Dwellings" of the Building Regulations Approved Document G, to calculate the level of water consumption for new dwellings. As a HM Government approved document, no changes, amends or omissions are allowed to be made to any aspect of the calculations.
Supporting evidence (e.g. appliance data sheets etc.) will also be required to support your application (for monitoring and auditing purposes). These should be attached with your submission.
A guide to using the calculator can be found here. In addition, if you have questions regarding completing the calculator please consult the frequently asked questions available here.
If you require any further information or have a query in relation to completing the calculator please contact us at UUdevelopercalculator@wrcgroup.com
Please check the System Requirements page for compatibility information.
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