Adopting a landmark 600-home riverside development
Clean and wastewater NAV adoption in partnership with Domis Construction
Water
Castle Irwell
Salford, UK
Image credit: Domis
The challenge
With high design standards and a strong focus on placemaking, it was critical that the water infrastructure supported the quality and long-term sustainability of the site.
Castle Irwell is a landmark 600-home riverside development located just minutes from Salford and Manchester city centres. Set within landscaped surroundings with organic gardens and play areas, the project has been designed to foster community living while offering residents a peaceful escape from urban life.
Leep Utilities was appointed as the NAV to adopt and operate the clean and wastewater network for the entire Castle Irwell development.
375
residential homes
35
acre development
The solution
We worked closely with Domis and project stakeholders from the outset to develop a water network solution that was both technically robust and aligned with the overall site layout and phasing.
Our early involvement ensured that network design could be optimised to support delivery efficiency and to minimise disruption during construction.
Leep’s team managed the full NAV application and regulatory process, including liaison with Ofwat and the incumbent water company, ensuring a smooth and timely inset appointment. Our detailed planning and hands-on engagement throughout the delivery stages helped maintain momentum and supported the developer’s programme. When last minute alterations were required, we were able to work quickly, compliantly, and collaboratively to build them into the final deliverables.
Image credit: Domis
Water
Value delivered
The Castle Irwell development now benefits from a resilient, high-quality clean and wastewater supply operated by Leep. Customers enjoy excellent service standards and have access to our user-friendly digital portal, allowing them to manage their accounts, view usage, and handle billing with ease.
The project demonstrates Leep’s ability to deliver high-performing NAV solutions in complex and design-led residential environments, contributing to the creation of well-serviced, thriving communities.
Why Leep?
Our ability to work flexibly, think creatively, and operate transparently makes us the ideal partner for forward-thinking developers like Domis.
At Castle Irwell, we delivered more than just utility connections, we delivered certainty, sustainability, and long-term value.
"Leep Utilities brought real value to Castle Irwell through their responsive and knowledgeable approach to clean and wastewater adoption. Their team collaborated closely with us to align infrastructure delivery with our build programme, and their handling of the NAV process made everything straightforward. It’s been a genuinely collaborative experience, and we’ll happily work with Leep again on future developments."
Lee Dunn, Director, Domis Construction
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