Key Points
- Work has started on the next phase of the £2bn Plasdŵr residential scheme on the outskirts of Cardiff.
- Edenstone Homes and Codi Group have formed a joint venture to deliver Porth yr Awen, a £55m scheme of 184 homes.
- The new phase will provide 127 open-market homes and 57 affordable homes.
- The affordable homes will include intermediate rental and low-cost homeownership options.
- The development site sits within the wider 900-acre Plasdŵr project, which is planned to deliver 7,000 homes in west Cardiff.
- The first homes are expected to go on sale in early 2027, with first residents moving in later that year.
- The wider Plasdŵr project is expected to include schools, shops, parks, playing fields, allotments and healthcare services.
- Planning permission for the first 630 homes was granted in 2016, with outline permission for the rest approved in 2017.
Cardiff (Cardiff Daily) July 23, 2026 – Work is under way on a new phase of the Plasdŵr residential scheme, with Edenstone Homes and Codi Group moving ahead with Porth yr Awen, a £55m development that forms part of the wider £2bn project on the outskirts of Cardiff. The scheme is being delivered as a joint venture and will add 184 new homes to the growing development area.
What is being built at Porth yr Awen?
As reported in the supplied source text, the new phase will provide 184 homes in total, made up of 127 open-market properties and 57 affordable homes.
The homes will range from one-bedroom to four-bedroom properties, giving the scheme a mix of sizes intended for different types of buyers and occupiers.
The affordable housing element will include intermediate rental and low-cost homeownership options. That means the development is not limited to private sale homes and is also designed to increase access to housing for people who may not be able to buy on the open market.
Who is delivering the new phase?
Edenstone Homes and Codi Group have formed the joint venture behind Porth yr Awen. Edenstone operations director Chris Edge said the initial stage will involve building a spine road into the site, which will create access for infrastructure works and later phases.
As reported by the source, Chris Edge said:
“The initial phase of works will see the construction of a spine road into Porth yr Awen, creating access for the infrastructure works that will prepare this development and phases beyond for new homes.”
He added that once access is created, work will begin on homes along the tree-lined avenue.
Simon Lewis, development manager at Codi, said the project marks an important step in delivering more affordable homes. He said:
“Every new development like this helps us provide more affordable homes for people who need them, while creating places where communities can grow and thrive.”
He added that the partnership aims to create a mixed-tenure neighbourhood that people will be proud to call home.
Where does this fit into Plasdŵr?
Porth yr Awen sits within the larger Plasdŵr development, which is planned to eventually deliver around 7,000 homes across 900 acres in west Cardiff.
The site borders Radyr, Danescourt, Fairwater, Pentrebane and St Fagans, placing it within a broad urban extension area that has been years in planning and delivery.
The Plasdŵr website says the wider scheme is intended to bring schools, shops, bars, restaurants, parks, playing fields, allotments and healthcare services.
It also says the first primary school is already under construction, showing that the development is moving forward in stages rather than as one single build-out.
When will homes be available?
The first homes at Porth yr Awen are expected to be put on the market in early 2027. First residents are expected to move in later in the same year, according to the information provided.
That timetable suggests the current work is focused first on access and infrastructure before housebuilding accelerates.
For large schemes of this kind, road access, services and site preparation usually have to be in place before sales and occupation can begin.
What has been approved so far?
Planning permission for the first 630 homes in Plasdŵr was granted in 2016, and outline permission for the remainder of the 7,000-home project was approved in 2017.
Since then, different parts of the wider development have been approved intermittently, indicating a phased approach to delivery.
The source material also notes that the development is expected to grow over the next generation. That long-term timescale reflects both the size of the site and the scale of the infrastructure and community facilities planned alongside the housing.
How does the scheme affect local areas?
The development borders a number of established communities, including Radyr, Danescourt, Fairwater, Pentrebane and St Fagans.
The Plasdŵr website says successful integration with these neighbouring areas is central to the project, and says it is committed to keeping disruption to a minimum.
It also states that the project has a section 106 agreement with Cardiff Council under which up to £73.5 million has been allocated for Plasdŵr and the local area over the life of the development.
That funding framework is intended to support infrastructure and services linked to the new neighbourhood.
Why is this phase significant?
This new phase matters because it shows that one of Cardiff’s major strategic housing sites is continuing to progress from planning into delivery.
The inclusion of both open-market and affordable homes means the scheme is being positioned as mixed tenure rather than a purely private housing development.
The road and infrastructure-first approach also suggests that the scheme is being built with later phases in mind, not just the immediate 184 homes.
That is important for a project of this scale, where long-term delivery depends on access, utilities and wider community infrastructure being put in place in a coordinated way.
Background of the development
Plasdŵr is one of the biggest housing developments planned for Cardiff and has been framed as a garden city-style expansion in the west of the capital.
The wider scheme has been under discussion and approval for many years, with the first tranche of homes approved in 2016 and the broader outline for 7,000 homes approved in 2017.
The development has also been accompanied by plans for schools and community facilities, including the first primary school now being built.
The project’s stated aim is to create a large mixed-use neighbourhood rather than housing alone, with the surrounding communities expected to be linked into its growth over time.
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Prediction
For local residents, the next phase of Plasdŵr is likely to mean continued construction activity, changes to traffic patterns and gradual expansion of local housing supply.
For prospective buyers and tenants, the key impact will be the arrival of new homes in a planned neighbourhood with a range of tenures and sizes.
For Cardiff more broadly, the development could help ease housing pressure if delivery continues at scale and on schedule.
The main test will be whether infrastructure, schools and services keep pace with the housing, because that will shape how quickly the new area becomes a functioning part of the city rather than just a building site.
