Proposed Welsh-Medium High School Site Revealed for Cardiff City Centre 2026

Key Points

• A prime five-acre plot of disused land at Callaghan Square in Cardiff city centre has been identified as a potential location for a new Welsh-medium secondary school.
• Former Cardiff Council leader Huw Thomas MS revealed he secured a positive initial response regarding the land transfer from the former Finance Minister, Mark Drakeford, earlier this year.
• The planned institution would serve as the capital’s fourth Welsh-language high school, directly addressing long-standing campaigns by families in southern districts such as Butetown and Grangetown.
• Currently, students in southern Cardiff face extensive daily commutes to existing schools located in northern and eastern parts of the city.
• Plaid Cymru’s newly appointed Education Minister, Anna Brychan MS, urged patience during her first Senedd questions session, citing the legal necessity to remain neutral on potential future school planning applications.
• Campaign groups have hailed the disclosure as a “momentous development,” arguing the central, multi-cultural location aligns with broader active travel goals and social justice priorities.
• The five-acre plot was originally purchased by the Welsh Government in 2013 for £7.2 million and is adjacent to upcoming infrastructure developments for the Cardiff Crossrail tram-train project.

Cardiff (Cardiff Daily) June 17, 2026 – Writing states that the most critical information must be presented at the very top of a report, followed sequentially by supporting details, contextual history, and administrative logistics. This methodology ensures readers grasp the core essential facts immediately before navigating finer analytical components or background dynamics.

Where Is the Proposed Welsh-Medium School Site Located?

Cardiff City Centre — Callaghan Square has been earmarked as the potential home for a new Welsh-medium secondary school, it was revealed on 17 June 2026.

The announcement marks a significant shift in long-running discussions regarding the provision of Welsh-language education across the southern communities of the capital.

As reported by Political Editor Ruth Mosalski of WalesOnline, former Cardiff Council Leader Huw Thomas MS, who now represents Caerdydd Penarth in the Senedd, initiated formal discussions regarding a prime five-acre plot of disused land situated on the south side of Callaghan Square.

Mr Thomas disclosed that he had approached the former Finance Minister, Mark Drakeford, earlier this year to negotiate utilizing the site for the capital’s proposed fourth Welsh-medium high school. According to statements made within the Senedd, the land request received a “positive response” from the finance ministry prior to recent cabinet restructuring.

The public disclosure occurred during the first oral question session for Plaid Cymru’s newly appointed Cabinet Minister for Education and the Welsh Language, Anna Brychan MS.

Addressing the chamber, Mr Thomas emphasised his personal and ministerial track record in expanding local education:

“It was a cause of pride for me, during my time as leader of Cardiff Council, to deliver significant growth in Welsh-medium education in the capital city. Now, the city is considering how a fourth Welsh-medium secondary school can be opened. Earlier this year, I received a positive response from the minister for finance at the time, Mark Drakeford, to my request asking the Welsh Government to provide the land that it owns on Callaghan Square to Cardiff Council as a possible site for this new school. Can I have confirmation today from you that that proposal still stands under this new government?”

How Has the New Welsh Education Minister Responded to the Callaghan Square Site Proposal?

In response to the direct questioning from Mr Thomas, Education Minister Anna Brychan MS maintained a strictly guarded position, citing the strict regulatory boundaries governing ministerial intervention in local authority planning decisions.

Ms Brychan, who represents the same constituency in which the Callaghan Square site is located, underscored her legal obligation to avoid pre-determining matters that may eventually require official Welsh Government adjudication.

Writing for WalesOnline, Ruth Mosalski documented the Minister’s verbatim response to the chamber:

“I’m aware that I need to be very careful in terms of making statements on issues relating to allocating school places, just in case those are issues that ministers have to comment on in due course. So, rather than committing a breach in my first ever oral statement, could I please ask him for patience so that I can check to what extent I can go into detail on the question that he raised around a fourth Welsh-medium school in Cardiff?”

Further expanding on her position during a subsequent broadcast on BBC Radio Wales, Ms Brychan reiterated that the Welsh Government maintains a firm national target to ensure 50% of learners are educated through the medium of Welsh by the year 2050.

She affirmed that every one of the 22 local authorities across Wales is legally mandated to deliver on these targets through their respective Welsh in Education Strategic Plans (WESP). While acknowledging she remains personally “interested” in the Cardiff high school proposal, she maintained that because the statutory application could ultimately land on her desk for final ministerial determination, absolute procedural caution remains paramount.

Why Are South Cardiff Community Campaigners Backing the Callaghan Square Development?

The disclosure has triggered widespread reactions from local grassroots groups who have spent years lobbying for localized Welsh-language secondary provision.

As reported by journalist Stephen Price for Nation.Cymru, the campaign group Ysgol De Caerdydd has formally welcomed the intervention, describing the identification of Callaghan Square as a “momentous development” for families residing in southern urban districts.

Currently, secondary-aged pupils living in ethnically diverse and economically distinct areas such as Butetown and Grangetown are forced to travel substantial distances across the city to access Welsh-language high schools. Representatives from Ysgol De Caerdydd argue that establishing a central, accessible hub rectifies a long-standing geographic disparity.

In an official statement given to Nation.Cymru, campaign representative Catrin Dafydd stated:

“It’s clear from the communication that took place between Huw Thomas and Mark Drakeford that there is agreement over the need for a fourth Welsh-medium secondary school, and for locating it right at the heart of the most multicultural communities in our city. The Callaghan Square site looks like a very promising choice to build this all-age Welsh-medium school. To establish Ysgol De Caerdydd right at the heart of the community will be a clear symbol of the new Wales, ensuring that the Welsh language is accessible at community level for all of us.”

Ms Dafydd further added that provided the site contains sufficient space for essential educational infrastructure, the project presents a transformative vision for local equity:

“The development offers an exciting vision for the accessibility of Welsh that completely overturns the fact that Butetown, one of the most economically disadvantaged areas in our city, is also at the moment the area with the worst access to Welsh-medium education. We look forward to continuing the discussion with the new leader of Cardiff Council, Chris Weaver, and we call on him to implement the school organisation code at once so that an application to build Ysgol De Caerdydd can go to the Welsh Government without further delay. The families of Butetown, Grangetown and the surrounding areas have already waited too long. Now is the time to act and build the school, as a matter of social justice.”

Supporting this perspective, fellow Ysgol De Caerdydd campaigner Eshmael Palmer highlighted the environmental and infrastructural advantages of utilizing a city centre plot. Speaking to Nation.Cymru, Mr Palmer detailed:

“The location of Callaghan Square offers clear potential for active travel with children and young people in the area being able to cycle and walk to school. It’s vital that Welsh-medium nursery and primary provision is part of this development so that Welsh-medium primary education is available to Butetown families on their doorstep. It’s also crucial that the development forms part of a community campus that will provide not only the school but also first-class facilities for the wider community.”

Mr Palmer also noted that the campaign remains committed to preserving existing capital resources, stating that “Ysgol Bro Edern should be protected and given investment as the Welsh-medium secondary school for children in east Cardiff,” confirming that the proposed city centre institution must explicitly serve as a distinct, fourth high school facility.

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Background of the Particular Development

The search for a fourth Welsh-medium secondary school site comes against a backdrop of complex local authority forecasting and fluctuating demographic data.

Prior to the revelation regarding Callaghan Square, plans for an independent southern Welsh-medium high school had faced significant resistance from local government planners.

Cardiff Council had previously ruled out the viability of establishing an entirely new secondary school in the south of the city, citing internal statistical models that pointed toward a declining birth rate across the capital. Local education officials argued that the projected drop in pupil numbers meant a new institution would lack long-term operational viability.

Currently, secondary Welsh-medium education across Cardiff is anchored by three established institutions:

1. Ysgol Gyfun Gymraeg Glantaf (situated northwest in Llandaff)
2. Ysgol Gyfun Gymraeg Plasmawr (situated west in Fairwater)
3. Ysgol Gyfun Gymraeg Bro Edern (situated northeast in Penylan)

As outlined within the official Cardiff Replacement LDP Infrastructure Delivery Plan, the city has committed statutory funding towards expanding bilingual capacity, including a recent allocation of £853,163 for additional secondary and sixth-form places, alongside £516,960 earmarked for land acquisition in western sectors.

Concurrently, data from the Council’s Welsh in Education Strategic Plan (WESP) indicates steady, incremental growth in early-years uptake; in the 2024/2025 academic year, 684 Reception-age learners (representing 18.2% of the local cohort) were taught through the medium of Welsh, up from 654 learners (17.9%) in the 2023/2024 period.

The targeted plot at Callaghan Square comprises approximately five acres of prime city-centre real estate. The parcel of land has resided under direct Welsh Government ownership for over a decade, having been acquired by the state in 2013 for a sum of £7.2 million, exclusive of ancillary professional fees and stamp duty.

While initially preserved for high-density speculative commercial office space or public sector relocation projects, the land has remained largely disused.

The site is also directly impacted by immediate infrastructure works; construction crews are commencing a scheduled two-year civil engineering project on the perimeter of Callaghan Square to lay down tracks for the new Cardiff Crossrail tram-train system, fundamentally altering local transit access.

Prediction: How This Development Can Affect Families and Communities in South Cardiff

Should the proposal to convert the Callaghan Square site into an all-age Welsh-medium educational campus advance through formal local authority channels and secure ministerial approval, it will directly alter the daily logistics, financial outlays, and educational choices of families residing throughout south Cardiff, particularly within Butetown, Grangetown, and the surrounding dockland communities.

For local working families and students, the primary transformation will be the drastic reduction in daily travel times.

Under current infrastructure constraints, children from southern postcodes who opt for Welsh-medium education must travel across the urban core via buses or parent-driven vehicles to reach northern or eastern campuses like Ysgol Bro Edern or Ysgol Glantaf. Replacing an multi-mile cross-city transit path with a localized city-centre campus brings secondary schooling within walking or cycling distance.

This satisfies the “active travel” priorities highlighted by regional transport planners, lowering household commuting costs and alleviating the logistical strain placed on families managing staggered school runs.

Socioeconomic Integration and Educational Access

From an access perspective, placing a state-of-the-art educational facility directly adjacent to some of Cardiff’s most multi-cultural and historically economically disadvantaged neighbourhoods changes the socioeconomic dynamics of language acquisition.

Historically, lower enrollment in Welsh-medium schools within southern wards has been tied to geographical alienation and a lack of local primary-to-secondary continuity. A visible, modern campus at Callaghan Square could lower the psychological and practical barriers to entry for non-Welsh-speaking households, encouraging a higher enrollment rate among diverse demographics and aligning local choices with the Welsh Government’s broader 2050 bilingual integration targets.

Competition for Land Use and Local Commercial Impact

Conversely, the reallocation of a five-acre central site from commercial zoning to public educational use will carry distinct trade-offs for local business development.

As a plot originally purchased for £7.2 million to stimulate corporate investment, dedicating Callaghan Square to a school campus permanently removes prime real estate from the city’s Grade-A office and commercial retail pipeline.

Local business consortia and property developers may experience a tightening of central commercial expansion opportunities. Additionally, introducing a high-density student populace into a central zone heavily impacted by the concurrent two-year Cardiff Crossrail construction works will require significant traffic management interventions to balance pedestrian safety with regional public transport flows.