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Net zero housing earmarked for former tip

Friday, 24 October 2025 at 13:26

By Ted Peskett - Local Democracy Reporter X @TedPeskettNews

Artist's impression

A major housing development in the Vale will be built on top of a former tip where asbestos and arsenic has been detected.

Earlier this month, the Welsh Government announced recently that it agreed a contract with developers Barratt Redrow for the delivery of 576 homes on land at Upper Cosmeston Farm.

It’s hoped the scheme - described as the largest net zero housing development in the UK - will help address the Vale's housing shortage

However, a data map on the Welsh Government’s website shows that the construction site includes an landfill site.

Natural Resources Wales (NRW) wrote to Vale of Glamorgan Council to give its thoughts on the plans in October 2023.

At the time, it said there are “unknown potential pollutants” on site and that the severity of them is “presently unknown”.

It did add that the areas previously used for landfill will not be disturbed as part of the housing project and that all works will be subject to a construction and environmental management plan (CEMP).

The Welsh Government’s website shows the materials deposited at the old landfill site, which was operational during the 1960s and 1970s, included industrial, commercial, and household waste.

A ground investigation of the Upper Cosmeston Farm site was carried out by consultants Arcadis.

A report by the firm published in 2018 stated they detected the presence of asbestos, arsenic, and sulphate in the ground that it tested.

Five years ago, Keep Cosmeston Green wrote in an objection letter to Vale of Glamorgan Council: "The excavation and disturbance of the soils will have the potential to spread contamination to uncontaminated areas, both on- and off-site, placing people, animals, gardens etc on the development and surrounding areas at risk."

"Severe health problems can arise if materials containing asbestos are disturbed or damaged, asbestos fibres are released into the air and breathed in by people and puts them at potential risk of contracting a number of serious diseases later in life including mesothelioma and lung cancer."

"Are families expected to live in this area containing potentially lethal chemicals, exposing them to life-threatening health risks?"

The Local Democracy Reporting Service understands there is an intention to carry out appropriate remediation on-site where necessary.

A Barratt Redrow spokesperson said: "Barratt Redrow was aware of the history of the site at Cosmeston and we are currently undertaking more detailed site investigation surveys to assess the land."

"If any land is identified as contaminated, a robust remediation strategy will be implemented prior to any development taking place."

After an agreement was signed for the Upper Cosmeston Farm development, housing secretary Jayne Bryant said: "This landmark development sets a new standard for sustainable housing not only in Wales but across the UK and beyond."

"This isn’t just about building homes – it’s about creating thriving communities and tackling the climate emergency head-on."

"Our net zero policy is driving real investment and real change in how we build the homes Wales desperately needs."

"The agreement with Barratt Redrow represents a significant step-change that shows what’s possible when we put people and our planet first and I’m particularly pleased with their commitment to delivering training and apprenticeships, helping to build skills and careers for the next generation."

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