Building Regulations require that new dwellings meet the minimum 125 litres per-person-per-day of potable (safe to drink) water.
If the development is subject to a planning condition, you may also be required to reduce internal potable water use further, often to 105 litres; this is at the discretion of the Local Authority.
Since 2010, Approved Document G – Sanitation, hot water safety and water efficiency, has required that all construction projects, whether that be an extension, conversion or new build, are water efficient enough to supply this 125 litre per person minimum threshold.
Part G water calculations take into account:
Whether you need the calculations for a planning condition or building control sign off, our prices start from just £65 per calculation, and we can offer discounts for multiple dwellings. Get in touch today for a bespoke quote to suit your needs.