St William is a Joint Venture between National Grid and Berkeley Group. Our aim is to transform old industrial sites into beautiful places which people call home.


All of St William’s projects are on brownfield land. These are often technically complex sites, which require careful planning and high quality design. St William is committed to landscape-led regeneration, creating welcoming and beautiful developments in spaces that have been closed to the public for decades.

The Berkeley Group was founded in 1976 and is one of the UK’s best-known developers of new homes. Our vision is to be a dynamic and innovative company committed to delivering superbly designed and built homes in excellent locations.