The Story - Mamhilad Park Estate The Story - Mamhilad Park Estate


Mamhilad Park Estate is owned and managed by Johnsey Estates UK Limited, a long-established and leading regional property company. As a privately-owned family business, we invest and plan for the long-term while also taking a hands-on approach, working closely with our occupiers and other stakeholders to help them grow, succeed, and invest in the future.

With a joined-up, collaborative approach, we are committed to creating a place where people want to work, now and in the future. We provide flexible and affordable workspace in a great setting, offering our occupiers accommodation appropriate to their evolving business needs.

We are hands on with the regeneration and maintenance work  being carried out and managed by us. We are proud of Mamhilad and the thriving community created here. That is why we will continue to invest, for the benefit of our occupiers, our local economy, and our environment.  

Purchased by Johnsey Estates

In 1986

Originally part of the ICI/DuPont complex, Mamhilad Park Estate was purchased in part by Johnsey Estates in 1986 with the ownership completed in 2004. The 140-acre site now boasts more than 1.2 million sq. ft of office and industrial space and is home to more than 150 organisations employing close to 2,000 people.

Iconic industrial site

Creating thousands of jobs

We are very proud of the unique heritage of Mamhilad as the first UK site for the former British Nylon Spinners (BNS) manufacturing centre. The factory, built between 1945 and 1948 and designed by Sir Percy Thomas and Son, was an iconic industrial site of its time, responsible for defining an entire industry and creating thousands of jobs within South Wales. We are guardians and custodians of this heritage, protecting the legacy of the site while evolving our facilities and repurposing our buildings to meet the needs of modern day occupiers.

Regeneration project

On a continuous journey of evolution

Indeed, as one of the largest regeneration projects in South East Wales, Mamhilad is on a continuous journey of evolution. It is almost unrecognisable today and must be seen to be believed!