We are a practice of consulting engineers, based in Cambridgeshire. We have 25 years experience delivering engineering solutions to the construction and property industry.

We operate locally, nationally and internationally, and we aim to provide prompt personal competitive professional service on all our projects. In particular, our knowledge of the local market, architects, developers and contractors enables us to provide efficient and cost-effective designs and advice to our clients.

Please browse the selection of our work on this site, and if you think we might be able to help you, we look forward to hearing from you.


  • Leslie Gawn BSc CEng MICE MIStructE MIQA

    Les is a Chartered Civil and Structural Engineer, with many years experience in consultancy, specializing in building structures. He has been responsible for carrying out structural design on a wide range of building forms and construction materials. He has extensive experience in both traditionally procured construction as well as being a member of design and build teams, in new build and refurbishment developments.

    Les also has detailed knowledge developed over many years in the local area, of housing construction types and potential structural deficiencies which manifest themselves. He brings this expertise to the many structural inspection reports we produce each year for householders and potential purchasers.

    Les established the practice in 1988 to bring modern structural skills to the Cambridge area in a professional cost-effective environment.

  • Roger Smith IEng AMIStructE

    Roger trained and continued his career with local consultants before joining Leslie in 1997. He has extensive experience of work in the retail and health sectors, as well as working for commercial and domestic clients.

    Roger has been part of a team of consultants involved in the development of a large number of high street department stores in the UK. He has also been involved in the development of a number of Nursing Homes and Doctors surgeries in the Midlands and the East Anglian area, working in conjunction with a leading Building Contractor, and most recently has acted as design engineer on a £15m development for Nottingham Hospital.

  • Robin Svensson IEng AMIStructE MICE

    Robin joined the practice in early 2002 and worked for large and medium sized multidiscipline consultancy practices before joining Gawn Associates. He has experience in varied projects using all traditional building materials, steel, concrete, masonry and timber, in all sectors of the building industry, e.g. educational, retail, commercial, housing, and arts and leisure. These together with experience of redevelopment schemes bring the team a wide variety of general practice skills on building projects.

    Robin prides himself in having worked on the design of the Air Traffic Control Tower at Stansted Airport.

  • Richard Moss BSc CEng MIStructE MICE
    Principal Engineer

    Richard moved to Cambridge in 1992 to help with design of the expanding Grafton Centre, and has since been engaged on many building projects in the city and East Anglia.

    He has over 35 years experience spent with two major national consultants in Britain and a few years working overseas on military and other structures. He joined us in 2007.

  • Hamid Saemian IEng, AMIStructE
    Principal Engineer

    Hamid has been working for local consulting engineers since he finished his studies at Leeds Metropolitan University in 1983. He joined Gawn Associates in 2015 to pursue working on small to medium sized projects.

    He has worked on numerous domestic and commercial projects throughout the UK.  He headed the Small Projects Team for his previous employer where he worked on a number of projects for Cambridge University colleges .

    Work examples include the Magdalene College’s Cripps Court Building, Marshall Aerospace and Defence Group’s Hangar refurbishment project and Euston Tower Refurbishment, working as the project engineer.

  • Marcus Garner MEng (Hons)

    Marcus has worked for the Company since 2006 following completion of his Master’s degree at the University of Manchester Institute of Science and Technology (UMIST).

    Marcus is engaged on a variety of projects from house extensions and conversions to larger residential and commercial developments. He is also working towards gaining Chartered status with the IStrutE and is responsible for organizing CPD events for the Company.

  • Scott Renfrey MEng (Hons)

    Scott joined the team in 2012 having graduated from Newcastle University with a Master’s degree in Civil and Structural Engineering. Scott is engaged on a variety of projects from residential projects to larger commercial and industrial developments. He is currently working towards gaining Chartered status with the IStrutE.

  • Ioanna Moumtzidou

    Ioanna joined the team in early 2017. She has been graduated from Surrey University with a Master degree in Structural Engineering. Ioanna is engaged on a variety of projects from house extensions, alterations and conversions on residential and commercial buildings. She is currently starting the procedure to be a member on IStructE.

  • Dave Smith
    Senior Technician

    Dave has had over 45 years experience in all areas of construction, from complex reinforcement drawings to the various highway and health sectors

  • Christian Smart
    Senior Technician

    Christian spent 10 years working for a large consultancy in Cambridge, working on both large and small scale projects ranging from structural drawings/modelling to drainage, highways and also earthworks.

    He joined Gawn associates in 2015 to further his structural & civil knowledge and progress his abilities.

  • Josh Timms
    CAD Operator

    Josh has been with Gawn for just over 2 year straight out of sixth form college. He is studying construction/civil engineering part time at a local college while he develops his CAD and construction knowledge by working on a variety of projects including carrying out surveys on site.

  • Gill Hayden-Smith

    Gill acts as PA and administrator,  managing the general working of the office.

  • Louise Freebody
    Finance Administrator

    Louise has been with us since 2010 and manages the finances of the company.  She is responsible for preparing invoices for the engineers, and monitoring the financial side of the business.