The Bristol office is based on the 7th floor of Beacon Tower in the centre of the city. With 15 floors of offices, the building is one of the tallest in Bristol.


Beacon Tower (formerly Colston Tower)
Colston Street
Bristol BS1 4XE

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Phone number

+44 (0)117 329 0874

Email address

A tall modern building named "Beacon Tower" with multiple balconies and large windows standing under a clear blue sky. There is a clock on a cylindrical structure attached to the side of the building. Trees are visible on the right side of the image.

Our Bristol office

We opened the doors to our Bristol office in 2013. Originally founded by Director Innes Johnston and Principal Engineer Henry Rock-Evans, the office has grown to over 30 people with a range of skills covering engineering, sustainability, building performance, acoustics, Passivhaus, and digital design.

From Spike Island to Tate St Ives to Bristol Old Vic, we’ve delivered many of the most prominent and prestigious cultural venues in Bristol and the southwest. Our focus is on low-carbon buildings, both new and retrofit, and we are experienced in embodied carbon analysis and delivering net zero carbon buildings. We’re also working on community housing, educational, and commercial developments that prioritise occupants’ health and wellbeing.

Our reach isn’t restricted to the southwest, having worked alongside our offices in London, Edinburgh, Cambridge and Manchester on projects all over the UK and abroad. 

A short film

Creating a sustainable office

Beacon Tower is a fifteen-storey tower block built in the 1970s. A key consideration in choosing this building was its future net zero carbon compatibility. It has natural ventilation, ducted heating and cooling (a Mitsubishi VRF system), and lots of daylight throughout. We installed a sub-metering system and an online energy dashboard, which we use to measure and minimise our energy consumption.

All our offices have their own energy champion to monitor and reduce energy consumption, and we fill our internal spaces with greenery and plants to increase the connection to nature.

Sustainable travel

Most people who work in our offices travel on foot, by bike, or on public transport - these are the most sustainable ways to get around. We hope this will encourage all of our visitors to also travel to our offices in the most sustainable way possible.

Beacon Tower is a 20-minute walk or 10-minute cycle from Bristol Temple Meads station. The area is well served by buses from both the station and the surrounding area. There are cycle racks close to the office. 

Accessibility information

Our office is on the 7th floor of Beacon Tower.

There are lifts available, including a platform lift to allow step-free access from the pavement to the upper ground lobby area. There is an accessible toilet on the lower ground floor of the building.