Andrew Horton - BEng (Hons), CEng, MICE, CMaPS


Andrew Horton first started in the construction industry more than 25 years ago. Sponsored by a large contractor, Andrew gained valuable experience at the ‘coal face’, including 18 months as a site engineer on multi-million pound projects in London and Wales. He has 20 years’ design office experience on various refurbishment and conversion work projects, as well as new build domestic and commercial properties, utilising the latest sophisticated analysis software and traditional design methods to deliver sympathetic and pragmatic solutions. Andrew is also a member of the Association for Project Safety and provides principal designer duties and CDM advice as required under the new CDM 2015 regulations.

Ross Carpenter - BEng (Hons)


Ross Carpenter has worked for PCA since 2006. He became a director in October 2018. Ross has extensive experience on site and in the design office working on a diverse array of residential, commercial and historic projects, including Northgate Street in Warwick, regarded as “the most handsome Georgian street in the Midlands” and the Eden Project in Cornwall. Working largely in the South Hams and areas around Exeter and Plymouth, Ross is renowned for his connections with local contractors and his excellent service. The father-of-three has a particular interest in bespoke domestic schemes, such as coastal properties located in challenging topography, and conservation engineering where preserving, strengthening and often modernising historic buildings requires a sensitive and logical approach.

Sophia Darke - BSc (Hons)

Finance Director

Having completed a business degree at Cardiff University, Sophia joined PCA Consulting Engineers in March 2005 as PA to one of the directors, and subsequently took over as office manager in 2007. She is now the finance director, responsible for the financial, HR, and administrative management within the company.

Paul Carpenter - BSc (Eng), PgDip (ArchConserv), CEng, MICE, Conservation Accredited Engineer

Director (Non-Executive)

Paul Carpenter has more than 40 years’ structural and conservation engineering experience both on site and as a consultant. He has developed an expertise in the sympathetic and practical structural design and repair of old buildings and works with conservation bodies throughout England including the National Trust, English Heritage, The Landmark Trust, Historic England, National Park Authorities and Conservation Officers. He is a member of the Society of Preservation of Ancient Buildings (SPAB), an affiliate member of the Institute of Historic Building Conservation (IHBC), has lectured on the ‘Role of Engineers in Conservation’ and was appointed as the specialist structural consultant for the Exeter Diocesan Advisory Committee in March 2009. Recently, he has enhanced his conservation qualifications by being included on the Conservation Accreditation Register for Engineers (CARE). His work has included advising on various National Trust and English Heritage properties including, St Michael’s Mount, Killerton House, Lanhydrock, Godolphin, Coleton Fishacre, Overbecks and Berry Pomeroy Castle, as well as numerous churches, historic mansions, forts, houses and cottages.

Colin Souch - MEng (Hons), CEng, MIStructE


Colin Souch has more than 30 years’ experience as an innovative structural designer having worked on a diverse of range projects from nuclear decommissioning through to conservation and maritime structures with commercial, industrial, residential and educational developments of various sizes and complexities. Colin has particular interests in building conservation, traditional timber framed buildings and ecologically led forms of construction.

James Blyth - BEng (Hons)

Senior Engineer

James Blyth is a logical evidenced based problem solver. Having started his engineering career as a timber frame designer, he quickly progressed to mixed materials projects, including domestic extensions and new build dwellings, educational buildings including those in the environs of listed buildings, and new build and refurbishment projects in hygienic food production environments.  James also has experience in flood risk assessment, including 1D and 2D modelling; SuDS drainage design at all stages; transport assessment; highway and car-park design; in-river engineering; project and asset management. His experience has included roles as lead designer.  As an engineering scientist, he has provided experimental design to accelerate oxidation of clays and investigate UV disinfection system under-performance. James holds separate bachelor’s degrees in biochemistry (Kent) and civil engineering (Kingston), and a PhD in water treatment (Imperial College London) and is particularly interested in application of modern analytical methods and conservation of heritage buildings and infrastructure.


Luke Shackleton - BEng (Hons)


Luke graduated from the University of Plymouth with a BEng (Hons) in civil and coastal engineering in 2015 and joined PCA in November of that year. Since joining PCA, Luke has worked on a diverse range of projects including small residential alterations, restoration and conversion of listed buildings, large new build developments and bespoke domestic schemes. Luke has a particular interest in computer analytics and design of structures using a variety of software packages including; Tekla Structural Designer and Robot Structures.


Dafydd Bonar - BSc (Hons)

Graduate Engineer

Dafydd graduated in 2015 from the University of South Wales having completed a BSc (Hons) in civil engineering. He joined PCA in January 2016.

Scott Doswell - BEng (Hons)

Graduate Engineer

Scott graduated from the University of Southampton in 2012 with a BEng (Hons) in civil engineering. Before joining PCA in August 2018, Scott spent five years teaching mathematics at Kingsbridge Community College.

Tim Little -

Senior Technician

Tim started at PCA in 2014 and heads up the CAD department. He has just completed his HNC in civil engineering.

Robert Covey -

Structural Technician

Robert has previous experience as an architectural technician and he was appointed in August 2015.

Harrison Ward -

Structural Technician

Having left school in July 2016, Harrison joined the CAD department in August 2016 to support the team. He will undertake in-house technician training.

Linda Capon -


Linda has extensive office management and secretarial experience, along with a number of relevant qualifications, having worked in a variety of roles. She joined PCA in October 2007.

Tina Wyeth -


Tina graduated in 2007 and before joining PCA in November 2012 she worked as a negotiator and PA for an estate agency firm.

Lesley Evans -


Having previously worked in a variety of administrative roles, Lesley joined PCA in February 2014.


Karen Arscott -


Karen’s career has been varied and fulfilling, having worked in office environments for a multi-national oil company, local council, health care and education before joining PCA in November 2019.