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Our Team

John A O'Neill

Managing Director

John has worked with JHA Ltd since 2003.  John is a Chartered Architectural Technologist MCIAT and is also a registered member of the Association of Project Safety.

John is the Managing Director of the Practice and the Principal Designer for JHA Ltd. John has extensive design experience in large commercial and industrial schemes, together with office and clerical buildings, conservation, social housing, and private residential projects. 

John has worked on a wide range of both private and public sector assignments from concept to completion. John has extensive experience in procuring works via various traditional and modern methods and has managed projects, from minor developments to major multi-million pound new build and refurbishment schemes. 

John has a passion for sustainability and construction technology forming the link between initial concept and completion of projects.

Matthew M Stables


Matthew has worked with the practice since 2010, and is a Chartered member of the Chartered Institute of Architectural Technologists.

Since qualifying as an Architectural Technologist in 2014, with a BSc(Hons) Degree in Architectural Technology, his experience as a Design Team Leader and Contract Administrator, delivering high quality construction projects, with particular focus on commercial, healthcare, disability, industrial and commercial developments has grown. Matthew deals with projects from initial briefing through to completion on site.

As a Chartered Architectural Technologist, Matthew is familiar with JCT contracts and undertakes Contract Administrator duties on projects, ensuring continual compliance with design through to project completion.

His skills range from developing designs at concept stage, to managing projects jobs on site and liaising with regulatory authorities and all members of the client, design and construction teams.


Christopher A Davie


Christopher joined the practice in June 2019 as a Chartered RIBA Architect.

Since qualifying as an Architect in 2014 Christopher has gained extensive experience in the Education and Healthcare sectors, for both public and private clients.

Being a RIBA Chartered Project Architect Christopher takes an interest in modern architecture and technologies and has a passion to realise design into functional form, working in both 2d & 3d BIM environments. His involvement in a variety of projects, at both large and small scale, have enabled him to develop a wide ranging skillset he can apply to any scheme.


Peter Czajkowskyj

RIBA Chartered Architect

Peter originally qualified as an Architectural Technologist in the Manchester office of Lewis Womersley, after which he completed a degree in Architecture at Leeds University before progressing and completing his Diploma and Part 3 at Oxford Brookes University.

After qualifying as an architect he became an Associate at Keppie Design before re-joining former colleagues to form Pulmann in 2000. Peter has since become an integral member and part of JHA Pulmann as of November 2022.

Peter is a modernist at heart but works closely with clients to deliver projects in all forms. He prefers to work closely with clients including them in the design process as part of the team, to allow them to realise their aims and will always endeavour to find ways to bring their ideas to fruition.

Peter has gained experience in many sectors from Education, Healthcare, Retail, Commercial, Residential, Refurbishment and Conservation as well as Ecclesiastical work. He aims to expand his role in client liaison in order to build on the strong team ethos created with JHA Pulmann.

David J Taylor

Senior Chartered Architectural Technologist

David has worked for the practice since 2005 and has extensive experience as Design Team Leader and Contract Administrator for a wide range of construction projects including healthcare, education, and commercial developments, and particularly specialises in large scale adaptation and new build properties to meet the requirements of people with special needs. 

David is also a Chartered member of the Chartered Institute of Architectural Technologists.

As a lead designer he manages and develops construction projects from inception to completion, assessing the needs of the client, co-ordinating associated professionals in the production of design information, and ensuring continual compliance with design/environmental/statutory/professional requirements through to project completion. As a Chartered member of the Chartered Institute of Architectural Technologists, David specialises in the application of building science and technology to architectural projects and in the use of technical knowledge to provide innovative design solutions.

Brendan R Foster

Senior Architectural Technician

Brendan joined JHA Ltd in June 2015 as a Trainee Architectural Technician to provide support to senior members of staff.

Brendan has since progressed through 4 years of college achieving his HNC in Construction and the Built Environment, together with becoming an Associate member of the Chartered Institute of Architectural Technologists.

Brendan has worked on a wide range of both private and public sector projects from concept to completion.

As a senior architectural technician, Brendan works closely with younger members of the team mentoring and sharing his unigue skillset. He shares a passion for architectural design of a modern style and is enjoying learning / developing new skills and techniques.

Lucy Deakin

Part II Architectural Assistant

Lucy joined the practice in Winter 2022 as a Part II Architectural Assistant.

She recently graduated with a Masters in Architecture, awarded with Merit, from the University of Sheffield, and previously completed her BA (Hons) in Architecture (International) at the University of Huddersfield. Through her studies she has developed a special interest in disabled adaptations, researching accessibility in architectural education during her Masters, and hospital design during her Undergraduate degree.

Lucy has experience working on projects at all RIBA Stages of work, and in difficult planning contexts. She is eager to apply this knowledge at JHA, working closely alongside Christopher Davie.

Bradley Rhodes

Part I Architectural Assistant

Bradley has worked with the practice since 2017 and is a key member of the team with multiple younger members reporting directly to him.

Since qualifying as a Part I Architect, Bradley has gained experience competently acting as a design team leader delivering high quality design projects with a particular focus on commercial builds. Bradley deals with projects from initial design team briefing through to completion onsite having a hand in all project stages. His involvement in a variety of commercial projects, both large and small scale have enabled him to develop a wide-ranging skillset which he can apply to any scheme.

Bradley takes an interest in modern architecture and has a passion to realise design into a functional form. He is currently progressing his designs in a 2D and 3D BIM environment with support from other members of our team.

Jack O'Hara

Architectural Technologist

Jack Joined the JHA team in Autumn 2020. Jack graduated from Sheffield Hallam University with a First Class Honour Degree in Architectural Technology.

Jack is grammar school educated and ACIAT accredited working closely with senior members of staff to expand his knowledge in all areas of construction and the built environment, to gain valuable experience of working in a busy professional practise.

Jack is AutoCAD accredited and is profficient in using the latest BIM and 3D Rendering softwares using this as an aid to help with his passion for sustainable and innovative environmental design. Jack plays a crucial role in delivering 3D visuals to clients.

Ed Burks

Architectural Technologist

Ed joined the JHA team in Winter 2021. Ed graduated from Sheffield Hallam University with a 2:1 Bachelor of Science Degree in Architectural Technology. He is working closely with senior members of staff to expand his knowledge in all areas of construction and the built environment, and to gain valuable experience of working in a busy proffessional practice and the AEC sector.

Ed recently won the Kopenhagen Tri Varsisty Project with his group working in an interdisciplinary fashion, utilising the latest BIM softwares and programmes - an accalade to be proud of!

Ed has a ongoing passion for conservation work and plays an active role in JHA's heritage projects.

Jack Waggitt

Part I Architectural Assistant

Jack joined the JHA Pulmann branch in the new year of 2023 as a Part I Architectural Assistant. Through his study at Northumbria University, Newcastle, Jack has developed a keen eye for Adaptive Reuse Architecture. He developed on this by researching new ways of implementing sustainable design during his degree.

Jack has experience within the construction and design industry having previously worked in the property development market where he gained invaluable experience in BIM and CAD softwares. This built upon his prior knowledge gained from working as a Kitchen designer is his early career.

Jack has an appetite for architecture and aims to benefit from working with senior Architects at JHA Pulmann, working closely alongside Bradley Rhodes and Peter Czajkowskyj.

Jack hopes to complete his masters in Architecture and become a RIBA Chartered Architect in the future.

Chris Wheater

Architectural Technician

Chris joined JHA in the Summer of 2020 and has since gained his diploma in Construction and the built environment. Chris is looking to study Architectural Technology at University in the future having gained experience working with quailified individuals. His daily tasks alongside his ongoing learning include drawing work and technical assistance to senior members of the team. 

Cai Thomas

Architectural Assistant

Cai joined the team as an apprentice to our senior Architects in 2021. Since then he has come on as an Architectural Assistant playing an active role in the day to day running and management of projects under senior members of the team.

He has a passion for Architecture currently studying his Part I in Architecture at university. Cai has a working knowledge of CAD and BIM software’s utilising Revit and Enscape to achieve incredible renders. 

Cai has an appetite for architecture and aims to gain lots of experience within the practice, working closely alongside our resident Architects, Pete Allen and Christopher Davie.

Jane Stockton Wood

Office Manager/ Directors PA

Joining the team in May 2023, Jane brings over 20 years experience in her field. Jane's backround lies in Human resources, training & development within social housing & the construction industry.

Jane is experienced in compiling bids & tender documentation, attaining & maintaining accreditations & enjoys managing the company degree apprentice programme. 

Carol Stone

Accounts Manager

Carol is JHA Ltd Accounts manager, Carols responsibilities include general financial management for the practice. Carol is proficient in utilising the latest in accounting software such as sage and access.


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