Delivering sustainable & innovative structural engineering solutions since 2016.

Featured Project

Penthouse, Knightsbridge

Refurbishment

This refurbishment in Princes Gate, London, involved the full strip out of a property overlooking Hyde Park as part of a £4.5m project.

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LSY has been delivering sustainable, innovative engineering solutions on time and within budget since 2016. We are a London-based civil and structural engineering practice servicing the UK and beyond. We fuse passion and expertise to design and deliver both permanent and temporary works across every sector, specialising in high-value structures.

Services

BIM

We believe that the best way to create efficient designs is to work in a collaborative Building Information Modelling (BIM) environment.

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Structural Design

We provide civil and structural engineering designs for both temporary and permanent works – something of a rarity in our industry.

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Surveys

We offer a range of comprehensive surveys for private investors, property funds, insurance companies and housing associations.

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Meet the Team

Our team at LSY has over 130 years of collective engineering experience working on high-profile projects around the world.

Meet the full team

Seán Young | Managing Director

Seán is the company’s Managing Director holding the qualifications: BEng (Hons), CEng, MIStructE, MIEI and MIEAust.

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Brian Turner | Structural Consultant

Brian is a Chartered Civil and Structural Engineer with over 50 years of experience in the industry.

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Recent Posts

Latest News

30th Sep 2026

Events, Latest

10 Years of LSY

Today’s article shares our Managing Director, Sean Young’s reflections on the first 10 years of setting up and growing LSY Engineering Consultants Ltd. The journey has involved early sacrifices, setbacks, uncertainty and plenty of lessons along the way. From starting the business with limited resources to building a team and establishing a trusted brand, every stage has shaped the business we are today. The article also reflects on the importance of resilience, continuous learning, trusting the people around you, and understanding that sustainable growth is about much more than simply winning work.

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30th Jun 2026

Bios

Interview: Student Structural Engineer – Tristan Donaghey

In this month’s article, we are going to give an insight into working with LSY Engineering Consultants Ltd as a Student Structural Engineer. This article is presented by Tristan Donaghey, who has successfully completed BEng Structural Engineering with Architecture from Queen's University Belfast and worked with LSY Engineering Consultants Ltd as a Student Structural Engineer. 

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31st Mar 2026

Bios

Interview: Graduate Structural Engineer – Freya Zhao

In this month’s article, we are going to give an insight into working with LSY Engineering Consultants Ltd as a Graduate Structural Engineer. This article is presented by Freya Zhao, who has successfully completed MEng Civil Engineering from Imperial College London and is now working with LSY Engineering Consultants Ltd as a Graduate Structural Engineer. 

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