Glan Llyn continues to be transformed into a high-quality residential, business and sustainable community development delivering approximately 4,000 new homes.

This £1bn regeneration project is transforming the 600-acre former Newport Llanwern Steelworks site into a new community for South Wales.

The development will include:

  • Approximately 4,000 new high-quality homes built for all, including first time buyers and families
  • A range of sports facilities, including a 3G pitch, and a multi-use games area
  • An abundance of open parkland, wildlife habitats and new lakes
  • Primary schools
  • The 100-acre St. Modwen Park Newport with office, manufacturing and warehousing – creating approximately new jobs
  • A local centre including a public house, retail and community facilities
  • New transport links including roads, cycle routes, footpaths and bus services



Glan Llyn (translated as ‘lake side’) will include three new lakes, extensive parkland across more than 80 acres, and the enhancement of the wildlife-rich pond area designated a Site of Interest for Nature Conservation (SINC).

Glan Llyn provides a range of habitats for wildfowl and wetland creatures, many native to the nearby Wentlooge Levels – including waterfowl, reedbed nesters and woodland animals – and has been recognised for its biodiversity enhancement. The parkland allows schoolchildren and residents to enjoy the nature on their doorstep.


Llanwern Steelworks once produced world-class steel, with a plant stretching across four miles along the main-line railway.

Initially owned by Richard Thomas and Baldwin, it was then operated by British Steel. When it opened in 1962, it was the first oxygen-blown integrated steelworks in Britain. It employed more than 13,000 workers and contractors and employed many local people in its years of operation.

Part of the steelworks is still operational today, with Tata Steel producing strip steel on site. St. Modwen acquired 600-acre part of the site – where the former steelworks once stood – and gained planning consent for its redevelopment in 2010. The site required extensive remediation prior to building the new community on site, and following this works the land is now a haven for local wildlife and nature.


As master developer, St. Modwen delivers infrastructure including roads, parks, shared spaces and community infrastructure, and releases land parcels for sale to housebuilders for new homes to be built.

St. Modwen has delivered to date:

  • Over 1000 new homes
  • Glan Llyn Primary School, which was opened by Newport City Council in 2019
  • Footpaths and cycle routes to sustainably connect different parts of Glan Llyn
  • New lakes, extensive parkland across more than 80 acres and a wildlife-rich pond area, which has been designated a Site of Interest for Nature Conservation (SINC)
  • The Llanwern Bull pub, which opened in 2016

Development Plan


Glan Llyn is strategically located at the gateway to South Wales, 12 miles from Cardiff and 30 miles from Bristol. Junction 23a of the M4 Motorway is within 2 miles via Queen’s Way.

The estate and surrounding area benefit from a new direct link via the Southern Distributor Road to the M4 motorway.


St. Modwen has developed a Travel Plan for the community at Glan Llyn which identifies sustainable routes to and from the development. Current transport connections include:

By foot
Local shopping and leisure at Newport Retail Park and Tesco Extra are just a 15 minute walk away. Glan Llyn Primary School can also be accessed on foot by residents and those from the wider area.
By bike
Cyclists can enjoy paths connecting the development with Newport City Centre, just a 20 minute bike ride away. For more advanced cyclists, Route 4 of the National Cycle Network sits approximately one kilometre away proving access to off-road cycle links to Chepstow and Newport.
By bus
The 74A/C and X74 buses run regularly between Glan Llyn and Newport City Centre and beyond, from the Llanwern Clock bus stop on Baldwin Drive
By rail
Just a 20 minute bike ride away, the closest rail station is Newport Railway Station, where train services run across south Wales and to destinations including Bristol and London
By car
For journeys further afield, Glan Llyn is approximately a 10 minute drive from Junction 24 of the M4 which gives easy access to Cardiff to the west and locations such as London to the east. We have a car-sharing scheme, where residents can use the platform LiftShare to share journeys with others and limit their carbon footprint.