Maps of water mains and sewers

What will the service provide?

Our plans are available in the following sizes: A4 (297 X 210mm), A3 (420 X 297mm) and A0 (1189 x 841 mm). We will produce the plan to a scale that we deem suitable to meet your requirements, based on the information provided.

Our maps don’t show where properties’ private connections join our network. As we adopted private lateral drains as part of the 2011 transfer, many aren’t plotted on our maps.

Sewer traces are strongly recommended prior to excavating or building.

How long will it take?

Once you have submitted an online request for a plan you will receive an email with payment information within 2 working days. Once payment has been received, you will receive your plan within 5 working days via email.

How much will it cost?

Pricing information can be found on our schedule of charges here. To apply online, you will need a valid debit or credit card.

How else can you view your plans?

You can view our water, and sewer maps free of charge in one of our viewing rooms. For more information about the location of our viewing rooms, our opening times or to make an appointment, please email developer.services@dwrcymru.com or call 0800 917 2652. The viewing room is a self-service computer, and there are instructions available to follow within the room.

Please note, you cannot take a picture, scan or print copies of maps in our viewing rooms due to copyright restrictions.

You can also view the sewer records at your local authority (you’ll need to contact them direct to arrange this).

It's important to note

For some areas, we aren’t the correct organisation to ask for public water and sewerage plans.

• In terms of public water plans, you’ll need to contact Hafren Dyfrdwy for Heswall, Neston, Whitchurch in Shropshire, Chester and Wrexham.
• For public sewerage plans, you’ll need to contact Severn Trent for parts of Ledbury, Worcester and Knighton.
• You can also use this postcode checker to confirm if the property is located within our area.