How we work

We value longevity. For over 50 years we’ve created timeless, durable buildings across the healthcare, education, residentialcommercial and community sectors. Our buildings have improved how people feel, work, live and learn.

When it comes to people, we think long-term, too. By investing in our people, we’ve created a long-serving, committed and highly-skilled team that bring creativity and care to projects of every size, shape and value.

From initial design through to completion, our buildings reflect the needs of our clients and the people that will use them. This approach makes projects accessible, collaborative and enjoyable for all. That’s how great buildings take shape.

Working with you

We listen. To clients, to stakeholders and each other. By listening we solve the right problems and meet the most important needs. Buildings that enhance care, inspire learning, enable research and strengthen communities only succeed when all challenges and opportunities are understood.

We think. Attention to Detail – some say it’s what AD stands for. We know our projects inside out – it’s why they run efficiently, cost-effectively and are delivered on time. We also think about the future. Applying specialist knowledge and innovative tools we design buildings that can evolve to meet future needs.

We advise. From design to project completion, we’ll work with you to share knowledge, pinpoint solutions and pre-empt problems – proactively driving the project forward. We’re here to help, to add real value to both the process and the end result.

We lead. Every project benefits from the hands-on involvement of an AD Director. This brings unique insight and sector specific experience to the table. We offer the same high level of care and attention for all projects – from small refurbishments to large developments.

Meet the team

Based in Hertford and London, we’re a RIBA Chartered Practice of creative and technical architects, UKAS accredited under ISO 9001:2015 and ISO 14001:2015.


Alan Whittingham


Alan’s expertise in education design, in public and private sectors, extends from early years to further and higher education, including specialist and Special Educational Needs (SEN) provision. He provides technical and architectural advice, most recently for the new Heathrow Aviation Engineering UTC and Sir Charles Kao University Technical Colleges.  Past projects include commercial developments, notably the RIBA award-winning ‘J’ Building and various community projects.  Alan is a Visiting Lecturer at the University of Hertfordshire.

A graduate of the University of Nottingham, Alan joined us in the 1980s and became a Director in 2002.


Jim Haigh


With experience of both NHS and private healthcare sectors, Jim brings leadership and knowledge in providing development control, masterplanning, feasibility studies, outline and full business cases, outline and detail design, user consultation, contract management, completion and post-completion. He has delivered PFI, LIFT, P21, P21+, D&B and direct capital funded contracts, and also provides Technical Advisor and Estates Strategy services in primary and acute environments.

A graduate of the University of Sheffield, Jim joined us in 2001; he became a Director in 2004.


Paul Wilkinson


For over 30 years Paul has enhanced learning through architecture.  Experienced in diverse projects spanning early years through to higher education.  His in-depth knowledge includes projects for children with special educational needs (SEN) and Alternative Provision (AP).  He also provides technical specification knowledge having spent time on the National Building Specification advisory panel.  Paul has delivered healthcare projects including Lister Hospital’s new £15m Emergency Department.

A graduate of the University of Nottingham, Paul joined us from Hertfordshire County Council and became a Director in 2002.


Adam Scott


A specialist in healthcare design, Adam has delivered both public and private projects, from small refurbishments through to complex developments. He works across all stages, from development control plans, business case and feasibility, through to full detail design, on-site project management and post-completion.

Adam joined us in 2001, prior to graduating from the University of Greenwich; he became an Associate Director in 2012 and a Director in 2015.

Ashley Hughes

Associate Director

Ashley has been involved in healthcare and education projects in both the public and private sectors, taking projects from initial feasibility stage to construction and handover.

Her work includes projects for those with special needs, disabilities, and dementia. Ashley is interested in spatial psychology, and specialises in interior design and healthcare planning. She is very practised in engaging with clients and end users, using virtual and physical visualisations to communicate designs.

A graduate of the London Metropolitan University, Ashley joined us in 2014 and became an Associate Director in 2019.


John Wiggett

Associate Director

John brings extensive knowledge of delivering healthcare projects across all RIBA work stages, gained in his previous role with IBI Nightingale Associates. At AD Architects, his experience spans small to large scale healthcare schemes with a variety of procurement routes, including PFI, P21, D&B and Traditional. He has also delivered education projects, including the NEET Building at Wexham School, Slough.

A graduate of Edinburgh University, with an MSc in Project Management from Reading University; John joined us in 2014.

Sue Hines

Administration Manager

A central part of our team, Sue has kept the cogs of AD Architects running smoothly since 1985. For clients, Sue is the welcoming face and voice of the Practice, who makes every project both enjoyable and efficient.

For the AD Team, Sue’s support behind the scenes is key to enabling everyone to focus on delivering their very best work for our clients.

Lister Hospital, Stevenage – New Maternity Unit

It's a wonderful new facility which stands in comparison with the best that the National Health Service or private sector can provide.

Nick Carver, Chief Executive, East and North Herts NHS Trust

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