Members of the Cohanim Architecture team in a historic interior
Cohanim ArchitectureCohanim Architecture

Practice

Cohanim Architecture · RIBA Chartered
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The practice

What Drives Us

A London and South Oxfordshire based architectural practice delivering design across the UK and internationally in the residential, civic, government, corporate, ecclesiastical, infrastructure and hospitality sectors.

A RIBA Chartered Practice, the studio is made up of ARB-registered and RIBA Chartered architects and designers alongside Part I and Part II professionals, with a track record on delivering complex projects including leading multidisciplinary team, varied planning approvals, development-led strategic sites, Grade I, II* and II listed buildings and Green Belt sites. We stay in lockstep with our clients through to delivery on site.

At the heart of the practice is an unwavering dedication to exceptional service, through a relentless work ethic, open-minded strategic thinking and intelligent design - keeping our clients goals in mind at every stage. We view good design as an iterative process which is grounded in context and investment value: a considered balance of creativity, technical expertise and strategic foresight.

“Great architecture is shaped through both vision and problem-solving. Our clients are a fundamental part of every project, and forming a dialogue between the right stakeholders at the right moments forms a key component to delivering the very best results. We excel in finding creative solutions to constrained sites.”
Joshua Harrison, Managing Director
Joshua Harrison
Managing Director
RIBA Chartered Practice
20020793
Team
10 studio based staff & 25+ on multidisciplinary schemes
Heritage
Grade I, II* and II listed
Delivery
RIBA stages 0–7
Oldest site
c.1400 AD
Culture

Practice structure

The practice is led by Managing Director Joshua Harrison. Design is co-led from the senior team - Michael, whose work centres on space configuration and residential conversions, and Anderson, educated at the University of Texas at Austin, the Architectural Association and MIT. Architects Veronica and Anna carry commissions through RIBA stages 0–7, supported by Part I architectural assistants, a BIM assistant and an in-house structural engineer, with RTPI planning consultants retained alongside.

We are energetic and talented architects, designers and a structural engineer - creative, ambitious and focused. Clients are a fundamental part of every project, and that dialogue runs from first feasibility sketch to practical completion.

Joshua Harrison, Managing Director
Joshua Harrison
Managing Director
Joshua read architecture at London South Bank University and leads the studio with a tenacious drive to deliver results for our clients. This is underpinned by a relentless work ethic, ensuring the practice remains focused on a common goal from the outset through to delivery. His approach is grounded in a sharp eye for detail, ensuring that every project is architecturally refined while being rigorously reviewed at each stage.

Importantly, Joshua brings together architectural thinking, strategic planning and commercial viability to unlock our clients' sites. This approach has resulted in significant economic value being added to sites where others looked in a different direction, or simply failed at the last hurdle.

We would be delighted to explore the solutions you do not yet know exist for your site.
Michael, Senior Architect
Michael
Senior Architect · ARB RIBA
Michael is an experienced Architect with particular strengths in space configuration, residential conversions and the resolution of complex design challenges. Alongside the Director, he manages many of the studio's major projects and is equally adept at detailed RIBA Stage 4 construction work as he is at the strategic and design-led stages of RIBA 1-3.

Michael has worked closely with Joshua for over five years. They are highly familiar with one another's working methods and understand how to play to their respective strengths to develop strong, well-resolved solutions together.
His previous experience also includes working with other established architectural practices across the country, bringing a broad base of technical and design experience to the studio.
Anderson, Senior Architect
Anderson
Senior Architect · AIA NCARB FRSS
Anderson's portfolio includes leading the £30M conversion of a Grade II* listed ecclesiastical building into a 5-star hotel in central London. Alongside his architectural work, he has taught at the University of Oxford’s Ruskin School, the Royal College of Art, Central Saint Martins, and the Architectural Association, where he now teaches observational hand drawing. At the practice, Anderson co-leads conceptual direction alongside the director and monitors key schemes. As of 2026 he splits his time between the United States and the United Kingdom.
Veronica, Architect
Veronica
Architect · ARB RIBA
Veronica achieved her Bachelor's degree in Architecture from Politecnico di Milano and her Master's from UCL Bartlett. She has worked on large residential developments, commercial projects, and listed buildings through her 10 years of industry experience. She has a particular interest in the technical aspects of architecture, focusing on understanding how buildings function and reviewing work. Her passion lies in mentoring. In her spare time, she enjoys reading, swimming, and running.
Anna, Architect
Anna
Architect
Anna holds a Bachelor's degree in Architecture and a Master's in Landscape Design, bringing a keen eye for composition and spatial harmony to every project. She is attracted to the visualisation stage, creating high-quality renders and animations that help refine concepts and communicate design intent throughout both conceptual and technical development.
Santiago, RIBA Part 1 Architectural Assistant
Santiago
RIBA Part 1 Architectural Assistant
Santiago completed his BA (Hons) Architecture degree at Nottingham Trent University and received nominations for several awards. He was offered a year out placement with the team in response to his proactive approach to work and his high-quality portfolio.

Since joining he has become adept at producing technical details, working across a suite of software to bring together several disciplines and is confident meeting and liaising with consultants and clients alike.
Clara, BIM Assistant
Clara
BIM Assistant
Clara joined us from Paris where she is studying BIM, architecture and was working with a firm producing BIM compliant solutions for the medical environment - generally large hospital infrastructure. Notwithstanding her relatively brief industry experience, she has brought discipline, an eye for detail and BIM compliant work approaches to the schemes she is assisting with.
Daniel, Work Experience
Daniel
Work Experience
Daniel is working with us for his year out prior to continuing his architecture studies at the University of Kent. he has worked with the studio intermittantly over the past 2 years and is with us full time for 2026 - a placement we offered to him due to his exceptional work ethic and curiosity.
Portrait to come
Hannah
Personal Assistant
Cohanim Architecture's Henley-on-Thames office
Open positions
Senior Architect & BIM POSITIONS
We are hiring. In particular we are looking to bolster our BIM fluent team and a senior architect with at least 5-years post-qual experience.
Send a portfolio and a covering note with "Open role - job application" in the subject line.
Track record

Selected experience

We have a high success ratio in achieving planning permission, including in the scenarios others avoid: Green Belt, Conservation Areas and listed properties from Grade II to Grade I. But our experience is far deeper and extends to complex multidisciplinary work involving various sectors, clients and construction technology. We also use the latest software and incorporate BIM throughout a projects lifecycle.

£30m
The GDV based on a 5% yield disposal on our mixed-use scheme in Buckinghamshire which we took on as a backland Green Belt plot, that was constrained by flood risk, TPO's, historic covenants - achieved through delivery of a tenanted site comprising two Grade A tenants, 25 year leases and annualised rent roll for our client of over £1.2m.
1763
We secured an extension to the Grade 1 listed building  St Lawrence Church in West Wycombe.
W1
Our experience covers much of central West London including commercial offices in and around Berkeley Square, townhouses in Mayfair and multiple properties, mansions blocks and listed sites across Bayswater.
International
We have been chosen to work on sites in Jeddah, Saudi Arabia, Zimbabwe, Africa and with many other international clients. We have the ability to deliver large bilingual projects and have done so.
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Henley-on-Thames
Old Brewery House, 86 New Street
Henley-on-Thames RG9 2BT
London
207 Regent Street, 3rd Floor
London W1B 3HH