Building and developing

Our expert Developer Services team is here to help.

Please note, the Developer Services application portal will be unavailable between Wednesday 17 April and Monday 22 April for essential maintenance.

Network maps

We can provide you with a copy of our plans showing the location of water mains and sewers near to your house or development site.

Renovating or extending a house

If you are planning to renovate or add an extension to an existing property then we are here to help.

Building a single new house

If you are planning to build a single new property then we are here to help.

Developing a commercial property

If you are planning a commercial development then we are here to help.

Developing a new site

Follow our guidance for developers of two or more properties.

Developing a block of flats

If you are building a block of flats then we are here to help.

Self lay

As a developer you may choose to lay water mains yourself under a self-lay agreement with us. Follow our guidance for SLPs.

New Appointments and Variations

The NAV Market enables developers and large business customers to choose their water and sewerage undertaker for a specific geographic area. Follow our guidance for NAVs.

I need something else

Guidance for our other services including fire hydrants and first time sewerage.

Nutrient-neutral development information

This statement provides an update on our current position with respect to working with developers to provide nutrient neutrality capacity at our water recycling centres.

Building sustainable homes

We are committed to minimising our impact on the environment. That’s why we are encouraging housing developers to build sustainable new homes, by offering a range of discounts.