170,000sqft office building which completed the first phase of the regeneration of Canon’s Marsh in the centre of Bristol
- Location UK
- Type New build
- Area 15,800m² 170,000ft² Sector Offices
- Client Crest Nicholson
- Services Architecture
The shape of the waterfront site was defined by Edward Cullinan Architects’ master plan for the area and the building form evolved from the opportunities and constraints presented by both the site and the master plan, integrated with the principles underlying the efficient design of a modern, flexible working environment.
The solution maximises the amount of floor area available by using space at the corners of the site and responds to central masterplan issues such as key spatial relationships, strategic views and contextual clues.
The opportunity was taken to use the harbour water adjacent to the site as a source of free cooling for the building and to temper incoming fresh air for mechanical ventilation in summer
Environment Agency monitoring data indicated that the floating harbour has ambient water temperatures ranging from 5 degrees Celsius in winter to 15 degrees Celsius in summer. Based on this, it was identified that there are large periods when the water could be used to provide comfort cooling.
During summer, the water temperature is generally in excess of that required to provide free cooling, therefore central cooling plant would be required to supplement the free cooling capacity of the harbour.
Water cooled chillers, twice as efficient as typical air-cooled chillers, could use the harbour water as a heat rejection medium.
Coupled with chilled beams and displacement ventilation, intelligent system controls, solar shading and solar heated hot water, this has enabled the building to achieve a BREEAM ‘Excellent’ rating, reducing running costs and providing a significant contribution to the occupier’s aim of reducing the overall carbon footprint of their business operations