Offices Nationwide
Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more
Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more
The Government’s national calculation methodology for assessing water efficiency in new dwellings.
Cornwall - Water Calculations - 01752 687 017
The office that covers this area is: Plymouth
The towns & cities that are covered within this county are:
Bodmin, Bolventor, Boscastle, Bude, Callington, Camborne, Camelford, Cawsand, Coverack, Dobwalls, Falmouth, Fowey, Hayle, Helston, Kilhampton, Lands End, Lanreath, Launceston, Liskeard, Lizard, Looe, Lostwithiel, Mevagissey, Morwenstow, Mousehole, Mullion, Newlyn, Newquay, Padstow, Par, Penryn, Penzance, Perranporth, Port Isaac, Porthcurno, Porthleven, Porthreath, Probus, Redruth, Saltash, St. Agnes, St. Austell, St. Cleer, St. Columb Major, St. Ives, St. Just, St. Keverne, St. Mawes, Tintagel, Torpoint, Truro, Wadebridge, Widemouth Bay,
Phone Number: 01752 687 017 Email: cornwall@e2consultants.co.uk
Cornwall 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 Cornwall 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 Cornwall 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
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!
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 01752 687 017 for a formal quotation or email Cornwall@e2consultants.co.uk.
Our other services include:
Water Calculations can also be known as:
Part G, Part G Water Calculation, Water Usage Calculation, Part G Water Calc,
Copyright 2025 E2 Specialist Consultants Limited
Company No. 06728970