Part G Calculations

The updated part G came into force on April 6th 2010 with a new requirement to address water efficiency. The maximum allowable amount of water per person per day in dwellings must not exceed 125 litres to comply with the Building regulations.

Calculations for the code for sustainable Homes

Water consumption inside the home is one of the five compulsory aspects to address under the Code for sustainable Homes. The standards range from levels 1-6 of the Code a total of 5 credits are available for water consumption. The water consumption specification for increasing Code levels are:

  • Level 0 – Part G of the Building Regulations.
  • Levels 1-2 – less than 120 litres/person/day
  • Levels 3-4 – less than 105 litres/person/day
  • Levels 5-6 – less than 80 litres/person/day

DSB Property Designs Ltd can provide water calculations to comply with both Building Control and the Code for sustainable homes, for a competitive quotation please contact us using the contacts page.