Technical Expertise

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

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Commitment to Clients

Our business is built on relationships, and our clients will always be our top priority.

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Featured Project

Silvertown Tunnel London UK

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

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Who We Are

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

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Our Regions

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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Stay on top of the latest developments, appointments, awards and more across all our offices.

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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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Investing In Our People

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

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Our EDI Policy

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

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International Presence

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

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Combining traditional and modern solutions  

Shaping the Future - Preserving the Past

Our dedicated team, consisting of some of the most pre-eminent conservation experts, specialise in historic and listed building restoration, development and conservation. Our conservation team includes Conservation Accredited Engineers (CARE) accredited by the Institution of Civil Engineers (ICE) and The Institution of Structural Engineers. Their expertise has helped protect and reimagine many significant historic buildings, including St. George’s Church in Bloomsbury, St. Lawrence’s Church in Mereworth, St George’s Church in Hanover Square, Langley Park, Victoria Station Manchester, Charterhouse School, St. Bartholomew’s Hospital, The National Maritime Museum, Sloane Building King’s Library and The Imperial War Museum.

As well as being one of the UK’s leading structural conservation advisers, we provide a range of expertise, including temporary works design, asset protection, environmental impact assessments, geotechnical support, drainage and pavement design, façade retention and railway consent advice.

We work on the following types of heritage assets:
  • Residential heritage
  • Commercial heritage
  • Estates & country homes
  • Scheduled monuments
  • Places of worship
  • Vernacular buildings
  • Public buildings 

Clients Benefit from our Deep Understanding of Conservation

Buildings that have been altered and repaired over hundreds of years do not give up their secrets lightly.  Our skill, intensive research, experience, attention to detail and dedication translate into exceptional project delivery.  Projects benefit from our extensive knowledge of architectural history, traditional building materials and repair techniques combined with modern technologies. We are seasoned at tackling complex and complicated projects. On the intricate vernacular structures of Paynes Hay Farmstead (Grade II*), we led the construction project by recommending minimal intervention. This maximised retention of the heritage fabric with repairs that matched materials and techniques. This approach of implementing conservation's best practices reduced costs whilst minimising the carbon footprint, also reduced the embodied energy of the project.

Our work on the scheduled ancient monument of the Maltings (Grade II*) in Stevenage returned the structure stable, watertight and secure to deliver its removal from the ‘Buildings at Risk Register’.  In addition, engaged by the City of Westminister, our conservation team reported on the existing structural stability/condition, recommending appropriate specialist conservation to stabilise and restore Cleopatra’s Needle, a 3500-year-old London landmark.

Public Realm and Private Estates

We work on public realm buildings and private estates. Examples of these include the reconstruction of Halton House as the officer’s mess for RAF Halton, the renovation of St Bartholomew’s Hospital in London (the oldest functioning hospital in the world) and the recently completed total renovation of Langley Park House Hotel in Buckinghamshire.

Our Diverse Portfolio

Our extensive portfolio includes Pensons Restaurant at The Netherwood Estate, which opened early in 2019 as a Michelin star restaurant.  Ayesa is currently restoring the Cornwall Terrace, which overlooks Regent’s Park and 33 Portland Place - one of the finest examples of a Robert Adam designed townhouse.  The stabilisation of the East Lodge building at Nunhead Cemetery and the conservation of a Martello Tower and other defence emplacements along the Northern Ireland coastline is also currently underway.  Our teams also specialise in assessing, restoring, and refurbishing historic barns and other neglected buildings in the countryside.


We have won many prestigious awards for conservation. These include the Georgian Group Architectural Awards (2006, 2009, 2011), Natural Stone Awards (2007), RICS Awards (2008), ACE-RIBA Awards (2010, 2011), Wood Awards (2014), The Stephen Lawrence Prize (2017) and the Civic Trust AABC Conservation Awards (2018).


Conservation Brochure


We support your projects

Our goal is to provide you with the best services for your needs