What are Part G Water Calculations?

Water efficiency calculations predict water consumption in line with Part G of The Building Regulations. You need these calculations for all new builds, as well as some conversions. The water efficiency of a property is becoming increasingly important to make homes more sustainable. Furthermore, as the population grows, it is more important that water is conserved.
Water efficiency is measured in litres per person. To comply with Part G of The Building Regulations, a property must show that its water targets will not exceed 125 litres per person per day. Some local authorities will set lower targets, especially in London and the South.

Water Calculations

What information do we need from you?

  • Latest set of floor plans showing all wet rooms i.e kitchen, utilities, bathrooms.
  • Make/Model/Quantity of basin taps and flow rates in l/min.
  • Make/Model/Quantity of Showers and flow rates in l/min.
  • Make/Model/Quantity of Toilets & flush volumes.
  • Make/Model/Quantity of Kitchen tap flow rate in l/min.
  • Make/Model/Quantity of Bath – capacity to overflow in litres.
  • Make/Model/Quantity of Dishwasher & Washing Machine details if fitted.

How much will it cost?

Single Unit = From £50
Multiple Units = +£10

Email: office@SAPsAndMore.co.uk or you can also submit your documents through our submission form here.

What is included?

  • All relevant documentation for Building Control and compliance with Part G of the Building Regulations.
  • Additional necessary recommendations to ensure a pass is achieved.
  • Elmhurst Accredited Assessors and Engineers.
  • Comprehensive advice and support throughout the whole process.