Complete Compliance Made Easy

01453 799329 | 07771 964 593


Part G Water Regulations

Part G of England and Wales Building Regulations covers water use and sanitation. It was updated in April 2010 to include a new section on water efficiency. In order to comply with this change, all new houses must be shown to use less than 125 litres of water per person per day. This can be proven by completing a Water Usage Calculation.

Here at Complete Energy Consultancy, we are able to complete this complicated calculation for you within five working days. We will send you our custom-made report to show compliance with Section 17K of Part G. You are required to produce a Water Usage Calculation for each house type.

If, for whatever reason, your current specification falls outside the required limits, our skilled assessment team will offer you advice on how to reduce this figure before we send the reports out to you.

The results of this calculation also have an effect on your SAP Calculations and could affect your Energy Performance Certificate rating. If your development is being built to the Code for Sustainable Homes standard, your water limit could be as low as 80 litres per person per day.

Call Complete Energy Consultancy today to discuss your current project. We will make all of the necessary arrangements for your Part G Water Efficiency Report and Part L SAP Energy Calculation.

Complete Energy Consultancy

For help and advice or to book an air test today call now on:

07771 964 593

Latest News

Latest Testimonial

Complete Energy Consultancy have provided compliance services for our clients when required. The single point of contact prompt service and consistency have allowed us to verify compliance with the Building Regulations for numerous projects.
Paul Hughes - Act Building Control Ltd

Act Building Control Ltd

20th February 2012


  • Residential & Commercial Pressure Testing
  • SAP & SBEM calculations
  • Energy Performance Certificates (EPC)
  • Code for Sustainable Homes assessments
  • BREEAM assessments
  • Part G Water Calculations
  • Energy Statements
  • Daylight, Solar & Natural Ventilation Calculations

RATT Logo Stroma Certified Logo