Identifying water efficiencies early can stop you leaking sustainability points.

Approved Document Part G – Revised 2015 Edition

The new approved 2015 document supports regulation 36 and part G of Schedule 1 to the Building Regulations 2010 and it took effect 1st October 2015.

The 2010 edition will continue to apply to work started before 1st October 2015 or work subject to a building notice, full plans application or initial notice submitted before that date.

The base Part G water consumption requirement of 125 litres/person/day remains unchanged; however an optional requirement for tighter water efficiency of 110 litres/person/day has been introduced, which can be enforced by local authorities.

The optional requirement includes a fixed factor of water for outdoor use of 5 litres and is therefore the same consumption as the old Code for Sustainable Homes requirement of 105 litres/person/day for internal use.

A ‘Fittings approach’ has also been introduced which provides maximum water consumptions for each of the sanitary ware and white goods. Compliance can be demonstrated by confirming the fittings installed do not exceed the figures in the tables below.

If the developer intends to use fittings with greater flow rates than those in a “Fittings approach” or intends to use rainwater harvesting, greywater, waste disposal unit or water softener a formal water calculation will need to be submitted showing compliance with Part G.

It is important to address issues surrounding Water Efficiency at the planning stage of any project. This will help you to identify and implement some of the most cost effective methods of minimising water consumption and achieving the required levels of compliance.

Get in touch or send an email if you need help reaching your Water Efficiency compliance targets and one of the team will respond within 24 hours.

Get a Quote

Complete the form