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Multidisciplinary teams comprising of specialists across ten industry sectors, we have the expertise necessary to grapple with challenging assignments.

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Silvertown Tunnel London UK

Silvertown Tunnel
One of the largest engineering projects in the world.

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International Award-Winning Engineering Consultants who deliver ground breaking solutions at the forefront of industry best practice.

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Carbon Reduction Plan

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Our Commitment to Net Zero
Ayesa is committed to becoming a net zero engineering consultancy by 2040

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Featured News

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On 19th October 2023, ByrneLooby will rebrand to Ayesa

ByrneLooby will officially adopt the name of its parent company, Ayesa, a global engineering and technology services provider.

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Cultivating a culture in which individual differences and the contributions of our staff are recognised and valued.

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Celebrating People
Fostering a culture where you are encouraged to be yourself.

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Multidisciplinary team comprising of specialists across Ireland, UK and the Middle East.

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University College London Hospitals (UCLH)


University College London Hospitals (UCLH) are developing a new Proton Beam Therapy (PBT) facility in the heart of London. The PBT unit will treat some of the most difficult cancers in children and adults. The facility is being housed in a purpose-built centre on Grafton Way and Huntley Street and includes one of the deepest basements ever constructed in London with an excavation depth of 28.5m below street level. The basement works have been undertaken by Bouygues and specialist contractors McGee and Fayat Piling.


Our Role

To undertake this mammoth basement in the heart of London required exceptional skill and experience in deep excavation design and the construction team appointed Ayesa as their design specialist. Ayesa prepared the detailed design and reinforcement of the deep diaphragm wall along with the design of the foundation piling. The diaphragm wall solution consisted of 1020mm thick panels installed to a depth of 32m below ground level. Ayesa advised on the optimum construction sequence to achieve an efficient solution and to minimise ground movements.

Our Role


The diaphragm wall was constructed from the existing basement level, requiring Ayesa to carefully assess the forces from the existing basement retaining walls and to incorporate a king post support system into the top of the diaphragm wall. The congestion during the diaphragm wall construction illustrates the challenges of redeveloping such sites in the centre of a busy city. Ayesa developed the construction sequence with the main contractor during their tender for the project.


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