ACS was set up in early 2021 to provide an in-house Structural Engineering service to the Award-winning Architects – Allan Corfield Architects. However, ACS is already so much more, a standalone firm with aspirations to become one of the UK’s leading consulting engineers.

MD Allan Corfield and experienced Non-exec Director Rod McMillan will initially work with our Senior Engineer. They will then plan and run the bespoke services provided, initially to ACA’s clients but within a 12-month period, these services will be available to all.

ACS will become market leaders in the design of Modern Method of Construction buildings (MMC), including closed panel timber frames, SIPS and ICF buildings. Using state of the art BIM design and analysis software, seamlessly integrating with our in-house architecture team.



David Gallagher
Technical Director & Structural Engineer


David attained an MEng in Civil Engineering Design and Management at Dundee University in 2006. During his career, he has obtained a wealth of experience working in the UK, Middle East and New Zealand working on a number of high profile projects before joining AC Structures as Technical Director.

After returning to the UK in 2012, David returned to the design office including 5 years working for Harley Haddow where he took the structural design lead on a wide range of projects from house extensions to exemplar Passivhaus research centres and hotel conversions of A-listed buildings. 

David joins the ACA team as Technical Director of ACS with the focus of complementing the existing high level architectural services provided with an aligned and coordinated structural support to provide Clients with an holistic design approach. David will look to establish and grow the structural team over the coming years. 

David has recently undertaken his own self-build house extension where he lives with his wife Rachel and two boys Seamus and Douglas. David enjoys travelling, running and football. 

Allan Corfield
CEO & Chartered Architect


Allan Corfield trained as an architect at The Scott Sutherland School of Architecture, and after obtaining his Masters in 2005 he was quickly snapped up by Watson Burnett Architects of Edinburgh. Allan worked on a number of key projects from one off homes to large Military Facilities for the MOD, before being made redundant during the recession in 2009. 

This was a turning point in Allan’s career as he went on to set up ACA from his home in Dunfermline. For the next 2 years Allan worked tirelessly to network and make local contact, giving him small domestic extensions and conversions. In 2012 ACA secured a number of one-off home commissions and commercial projects, which allowed ACA to move into new offices. 

Over the past 8 years, Allan has led the way in the architectural side of both Custom & Self Build sectors, delivering seminars throughout the UK and giving keynote talks at the Homebuilding & Renovating Shows. ACA has continued to grow to a team of 14, with Allan overseeing all design work and leads a number of key projects through all stages of the build.

Allan married his partner Emma in 2014, and their first child – Flynn, was born in 2015, with little Ruairi completing the family in 2019.

Rod McMillan
Non-Exec Director


Rod joined the team in 2018 as Non-Executive Director to help in ACA’s strategic business development. Rod is experienced in helping business owners and leaders with strategy, people, organisation structure, finance and commercial problem resolution.

Along with 3 co-directors he performed a Management Buy-Out of an Electronic Office Supplies company, ISA International plc. ISA’s flotation on the full list of the London Stock Exchange followed 2 years later.

For the last 25 years Rod has worked as an independent Non-Executive Director of businesses across many different sectors, from international electronics manufacturing to food production to healthcare.

Elliot Taylor
Structural Engineer


Elliot studied Civil and Structural Engineering at The University of Aberdeen, graduating in 2020 with a BEng (Hons) having been passionate about structural engineering since a young age.

He joined ACS in 2021 as a Graduate Structural Engineer and is being mentored and supported at ACS in his journey to become a Chartered Structural Engineer. He has a keen interest in sustainable construction methods and modern building practices.

Outside of the office, Elliot spends his time in the gym, playing football or on the golf course. His other interests include travelling and beer tasting.

Kim McIntosh
Office Manager


Kim joined ACA as our Office Manager in 2013, and has become a key member of our team. Kim deals with the day to day running of the practice, as well as ACA client accounts. Kim has built up a wide range of experience, working in a variety of companies and positions.

Following experience as a secretary and personal assistant, she became project administrator in the UK product development group of Foxboro, an engineering company originating in the Massachusetts town of that name.

After a career-break while her children were young, Kim has worked for a number of small businesses, maintaining accounts and bookkeeping, whilst gaining experience in all aspects of supporting a small company.

In her spare time, Kim is interested in genealogy, dressmaking and embroidery.

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