The cookie settings on this website are set to ‘allow all cookies’. Leaving your settings to ‘allow all cookies’ means you consent to a website remembering your preferences. If you prefer a website to not remember your preferences, you can change your settings at any time by changing the privacy settings of your browser.

Services for developers
and housebuilders

Whether you’re planning a small extension to your property or a large scale development we’re here to help.

Northern Ireland Water recognises the importance of supporting development and regeneration and confirms its commitment to delivery of services for householders and developers. We recognise the importance of working closely with you as the developer to provide workable solutions to your water and wastewater needs.

Who are Developer Services?

Developer Services are responsible for the provision of services associated with all aspects of development and housebuilding including first time service appraisal, diversions of watermains and sewers, watermains in new development, adoption of sewerage systems in new developments and dealing with watermain and sewer requisitions.

How to Contact Us

Development related queries should be emailed to developerservices[AT]niwater[DOT]com or posted to NI Water, Developer Services Co-ordination Team, Ballykeel Office, 188 Larne Road, Ballymena, BT42 3HA.

If you require further assistance please contact Developer Services Coordination Team via 03457 440088 (Mon-Fri, 09:00 to 16:30, excluding Public / Bank holidays)

Developer Services – Covid 19 Update for Customers: Updated 4/6/2020

We wish to inform developers and home builders how COVID 19 may affect the services that Developer Services provides to you.

Following Government Health advice to keep customers and our staff safe NI Water has reviewed the services offered to Developers and New Customers.

We are now moving to a return to working across all areas of Developer Services. Covid 19 continues to affect the way we work and you may notice that things like work on site by our staff and contractors will take longer to complete.

We are currently making plans to return to site inspections to complete adoptions of sewers within developments . We are aiming to return to these visits on a phased approach initially towards the end of June/ start of July.

If you wish to submit a new Article 161 application (SA1) we would ask that you contact developerservices[AT]niwater[DOT]com before doing so. We will provide you with details on how to go about making your application during the current lockdown.

VAT Receipts- Given the current government restrictions for COVID-19, all of our administrative staff are working from home and are therefore unable to issue official correspondence, this includes vat receipts in relation to services for which you have paid.If you can provide an email address we will e-mail you a copy of your vat receipt. If not, we will issue you with a printed copy but there will be a delay in processing. Thank you for your cooperation and patience during these unprecedented circumstances

We are endeavouring to continue to deliver other services where there is no requirement to visit site as normal. This may change and we may have to ask for you to change how you interact with us such as submitting information by email rather than by post. As things change we will endeavour to keep you updated.

This remains a challenging time for us all. We would ask for your co-operation and patience at this time.

If you wish to contact us on developer services related matters you can do so by email to developerservices[AT]niwater[DOT]com.

Escalations Process

In the event that you have an un-resolved development related issue, you can escalate your query. Details of our escalations process can be found here.


This section contains information needed to help you apply for a pre-development enquiry, development encroachment –odour assessment and records requests. You will also find guidance on the submission of digital format drawings of proposed site layouts.

Learn More
general panel


Whether you want to install a new water connection or are planning to build near a watermain, we can help you every step of the way. Our forms contain all the information needed to obtain a water supply to a property or development. Each type of activity contains the application form and guidance notes.

Learn More
services for devlopers


This contains all the information needed to obtain a consent to build over a public sewer, to connect to a public sewer, requisition a public sewer or divert a public sewer for your property or development.

Learn More
services for developers

Our charges and fees

Details of all the relevant fees relating to the applications for Development Services. Our charges for pre development enquiries, water connections, sewerage (wastewater) connections, and infrastructure changes can be found here.

Learn More
Services for developers

Can't find what you're looking for? Visit the Need our Help section