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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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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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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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Hamilton Drive

Hamilton Drive

Hamilton Drive, St John’s Wood is an impressive development of ten town houses and a luxury villa. The houses have two levels of basement providing parking, home cinemas, gyms and a swimming pool. The site was previously occupied by 140 disused garage units. The new buildings comprise reinforced concrete walls and slabs within a secant piled basement box.

Hamilton Drive

Our Role

Ayesa provided detailed civil and structural engineering design for PJ Carey under a design and build contract. The role covered both permanent and temporary works. With a long site boundary, 23 party wall awards were required before the basement excavations could begin. Ayesa provided the structural input for these awards.

Our Role


The original design employed a raft for the foundations with tension piles to resist heave and hydrostatic pressure. However, Ayesa undertook careful modelling of heave and settlement for the site and surroundings using Flac 3D software. This gave a better estimate of final heave and settlement and showed that with the introduction of a drainage blanket to reduce hydrostatic uplift and stiffening of the basement box to cope with minor differential heaves the tension piles could be eliminated. The savings from this redesign were critical in PJ Carey winning the project.


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