about us

Harris Calnan have over 25 years experience in high end residential, public arts and commercial projects in and around the city of London. We work with many leading architects, commercial and residential developers and construction consultants as well as private clients to develop new build & refurbishment projects of quality, distinction and value.

Since 1993, we have completed over 500 projects as main contractor, many of which have received various RIBA awards including the House in Highgate Cemetery and House in Belsize Park with Eldridge Smerin, and Raven Row gallery with 6a. Alongside RIBA awards, The Brick House with Caruso St John architects, and Juergen Teller’s Studio with 6a architects were also Stirling Prize finalists in 2007 and 2017, respectively.

We place great emphasis on build quality, craftsmanship, attention to detail, and project management.

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Our Team

Colin Calnan

Colin works closely with design teams to ensure the project moves towards the construction phase as smoothly as possible, helping to overcome the many hurdles that often delay commencement.

Ruairí Bray

Once on site, Ruairi takes charge of project administration, procurement and programming, ensuring the most effective use of our supply chain for successful delivery of complex projects.

Marc Dimambro

Marc is responsible for project management, development of contractors design, and quality control, calling on his vast practical knowledge and site experience.

Jack Calnan

Alongside project administration & procurement, Jack manages our off site operations and office team and is responsible for all day-to-day business functions.

our team

Let’s Work Together

We are always open to collaborating with architects and designers on new challenges.

Please get in touch to discuss any upcoming projects.


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