Offices Nationwide 

Renfrewshire - Water Calculations - 0141 894 0107

The office that covers this area is: Glasgow

The towns & cities that are covered within this county are:
Erskine, Johnstone, Kilbirnie, Kilmacolm, Paisley, Renfrew,

Phone Number: 0141 894 0107 Email:

Renfrewshire Water Efficiency Calculations The Requirement G2 and Regulation 36.

If you are building a new dwelling or forming a dwelling by material change of use in Renfrewshire you are required by building regulations Part G to design the appliances to use no more than 125 Litres of water per person per day.

This part of the building regulations states "Reasonable provision must be made by the installation of fitting and fixed appliances that use water efficiently for the prevention of undue consumption of water". This methodology is in support of The Code for Sustainable Homes, May 2009 onwards and the Building Regulations 2000.

The Council in Renfrewshire can set their own targets for water consumption, though if you are doing these calculations as part of a Code for Sustainable Homes assessment, you may be required to use no less than 80 litres per person, per day.

  • Code for Sustainable Homes (Level 1/2) 120 litres/person/day
  • Code for Sustainable Homes (Level 3/4) 105 litres/person/day
  • Code for Sustainable Homes (Level 5/6) 80 litres/person/day

If you would like a quote for Water Calculations / Water Calculations call one of our regional offices and speak to one of our experts on 0141 894 0107 for a formal quotation or email

We can provide same or next day turn around on all Water Calculations, all you need to do is provide us with all of the information for the fittings. We even provide you with an easy to understand checklist to help you know what information is required!

Our other services include:
Thermography, Sustainability Statements, Energy Statements, On Construction EPC, Part E, Code 4 Sustainable Homes, Environmental Noise, SAP Conversion Calculations, SAP Extension Calculations, Part F Ventilation Testing, Acoustic Testing, Air Leakage Testing, SAP Calculations (TER/DER),

Water Calculations can also be known as:
Water Usage Calculation, Part G, Part G Water Calculation, Part G Water Calc,

E2 Specialist Consultants
February 5 at 12:05pm
Quality example of a super air tight property over in Cheshire today, congrats to the self builders on achieving a air tight result of sub 2, this should enable their MVHR system to work a treat along with their super- insulated building fabric and triple glazed windows.

E2 Consultants Delivering compliance solutions for Architects & Developers    Head Office E2 HOUSE, South Park Way, Wakefield 41 Business Park, WF2 0XJ    Questions? Call: 0800 043 8100