Dwr Cymru Welsh Water
Connection to a Water Main

Developer Services

  1. Please have your credit/debit card available to make payment as part of this application
  2. Please ensure that you have read our guidance notes before completing this application form
  3. During the electronic application you will be required to upload a Location Plan. We suggest gathering these materials in advance and reviewing the file upload requirements below to make the application process as easy as possible. When preparing your application materials to be uploaded as part of your application, please note the following:
    The file size of each document must be less than 15MB
    We can only accept DWG, PDF, BMP, JPEG, DOC, DOCx file types
    Files cannot be password protected
  4. You may be asked to provide further information by a member of our Developer Services Team as your application progresses. You may send this via email.
  5. You will receive a confirmation email within 2 hours of your form submission
Applicant Details

(Please note that fields marked * are mandatory)

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You will receive email confirmation of your online application
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Name and Address of Agent
Payee Details
Development Details

(Please note that fields marked * are mandatory)

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Planning Approval
Is planning approval required?
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If Planning Permission is required for your development, please supply the Planning Approval Reference Number(s)
Previous Use of Premises/Use of Premises

(Please note that fields marked * are mandatory)

Was there a premise or premises on the site in the previous 5 years?
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What is the intended use of the development


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Previous Use of Land

(Please note that fields marked * are mandatory)

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Is the new water supply required for a development on a Brownfield site?
Construction of new properties, or renovation / conversion of existing buildings, land or premises that have previously been used or developed and may be vacant or derelict
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Has the site or any adjacent sites or other land through which you propose to lay your water pipe(s) potentially be affected by contamination?
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Are you planning to store any chemicals, fuel or other materials likely to affect the quality of wholesome water and which will affect the proposed pipe selection?
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Existing Services

(Please note that fields marked * are mandatory)

Is there an existing DCWW supply on site?
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If Yes, it is shared?
Do you have any other means of obtaining water?
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If Yes, please select one of the following options


Is a connection required for building a property?
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If Yes, is this to be retained for the completed unit?
Will you be connecting to the public sewer?


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Type of Development/Supply

(Please note that fields marked * are mandatory)

Please give details of the type of development proposed
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New Building
Separation of supply
Conversion
Refurbishment/Redevelopment
Cattle Trough
Industrial/Commercial Premises
Fire Fighting Apparatus/Sprinkler
Other
Quantity of Water
Important: Consumption and flow rates are essential for the correct sizing of the supply and meter.
Please provide your estimated water quantities (in litres) for all non-domestic connections:
We need them to determine whether the existing distribution network can accommodate this demand without reinforcement (i.e. laying new mains) and these will form the basis of the supply agreement between you and us.
Description of Proposed Work
Water Supply (Water Fittings) Regulations 1999.
Notification of Proposed Works for the Granting of Consent.
This section does not have to be completed if you are separating a domestic shared supply.
For help with completion of this section please refer to our Guidance Notes.
Please tick relevant box for each of the following questions
The installation of water fittings in conjunction with:
The erection of a building or other structure
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Extension or alteration of a water system on any premises (other than a house)
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A material change of use of the premises
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Temporary standpipe
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Other installation
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Proposed Installations
If any of the boxes in this section are ticked, you must provide supporting documentation i.e. installation plans, diagrams, technical details of fittings/appliances, make/model etc and any relevant approval documents
Does your proposed development include:
A bidet with an ascending spray or flexible hose
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A pump or booster drawing more than 12 litres per minute, connected directly or indirectly to a supply pipe, e.g. Pumped delivery showers (power showers), pressure washers, high rise building pumped water delivery systems
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A water treatment unit which incorporates reverse osmosis, e.g. pure water systems
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A water treatment unit which produces a wastewater discharge or which requires the use of water for regeneration of cleaning e.g. certain types of domestic/commercial salt regenerated water
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A reduced pressure zone (RPZ) valve assembly or other mechanical device for Fluid Category 4 backflow protection
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A garden watering system, unless designed to be operated by hand
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Any water system laid outside a building, either less than 750mm or more than 1350mm below ground level
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The construction of a pond or swimming pool over 10,000 litres capacity, designed to be replenished automatically with water
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Any water pipes for fire fighting purposes
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A rainwater or greywater harvesting system
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Use of an alternative supply of water anywhere on the premises e.g. spring, borehole etc.
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Infrastructure Charges
Please refer to the Guidance Notes before completing the section below.
Only complete if commercial, industrial or conversion. Please enter the number of fittings for each type of appliance. A reasonable estimate will suffice.
Where there is found to be a major difference between any estimate and actual fittings, the infrastructure charge may be reassessed based on the actual fittings and any underestimated charges will become due to us.
Each connection requires a separate schedule of loading units. If converting a property an existing and proposed schedule is required
WC flushing cistern
2 loading units
Wash basin in dwelling (i.e. Flat, housing unit)
1.5 loading units
Wash basin not in a dwelling (i.e. Hotel, offices)
3 loading units
Bath with nominal 20mm taps (including whirlpool bath, jacuzzi)
10 loading units
Bath with taps larger than 20mm (including whirlpool bath, jacuzzi)
22 loading units
Shower
3 loading units
Sink with nominal 15mm taps
3 loading units
Sink with taps larger than 15mm
5 loading units
Spray Tap
0.5 loading units
Bidet
1.5 loading units
Domestic appliance – subject to a minimum of 6 LUs per dwelling (domestic appliance includes a dishwasher, washing machine or a waste disposal unit fitted in a dwelling)
3 loading units
Commercial or communal appliance - (includes a dishwasher, a washing machine, or a waste disposal unit fitted in places other than dwellings or fitted as part of communal facilities for dwellings)
10 loading units
Urinal or water softener
0 loading units
Any other water fitting or outlet(including taps)
3 loading units
File Uploads

The file size of each document must be less than 15MB
We can only accept DWG, PDF, BMP, JPEG, DOC, DOCx file types
Files cannot be password protected
Ensure you have each document saved separately

Please select the Location Plan file  *

Please select the Planning Permission file  *
Please be aware that it is not possible to upload files when using an iPad or iPhone.
Legal Notice
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