Irish construction company Sisk has been appointed to deliver a cutting-edge Children's Cancer Centre (CCC) at Great Ormond Street Hospital for Children (GOSH) in central London.

The landmark project is being supported by Great Ormond Street Hospital Charity (GOSH Charity) as part of its 'Build it. Beat it.' fundraising appeal, which aims to raise £300 million—the largest and most ambitious campaign in the charity's history. The funds will support the construction of the CCC, drive advances in cancer research, and transform paediatric cancer care.

Spanning nearly 19,000 square metres, the new clinical building will provide world-class facilities while also featuring a new main entrance and welcome area for the entire hospital. The project will consolidate GOSH's cancer services into a larger, purpose-built centre across four floors, ensuring clinicians can deliver more effective treatments with fewer side effects in a child-focused environment.

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During construction, Sisk will employ over 500 workers on-site, create over 20 student work placements, and recruit 37 apprentices. The project has also been digitally modelled in 4D technology before breaking ground and is the first hospital in the UK to be fully compliant with the Building Safety Act (BSA).

The new facility will replace some of GOSH's oldest buildings, allowing for a more cohesive and advanced approach to paediatric cancer care, with the goal of saving more lives through cutting-edge research and treatment.

The hospital is also using the opportunity to improve other services that are essential to the delivery of the cancer care pathway and other specialities.

With a new entrance, reception area and outside spaces, a new larger hospital school and theatre, imaging and critical care services, the centre will benefit every child who comes to GOSH.Construction is forecast to be complete in late 2028.

Ger Hayes, Managing Director, Sisk said: "It's an incredible honour to be entrusted with building the new Children’s Cancer Centre at Great Ormond Street Hospital. We’re making significant progress in the healthcare sector both in Ireland and the UK and we fully appreciate that Great Ormond Street Hospital is one of the world's leading children’s healthcare providers. As a family-owned business, we take immense pride in creating lasting legacies within the communities we serve and we are fully motivated to deliver a best-in-class cancer centre for GOSH and the families they support."