The Tooley Street Redevelopment is an attractive, flexible working environment that was sold twice and let successfully to a public body before completion.
The project combined the refurbishment of Victorian warehouse buildings with a six-storey new build to create an energy-efficient office building.
The building is conditioned with an air-displacement system, delivered through a floor plenum supplied from air handling units on the roof. In perimeter areas, where solar gain is highest, air passes through hollow structural columns, which simplify the air distribution. This maintains fit-out flexibility on the large floor plates. The exposed concrete provides thermal moderation, which reduces energy consumption.
Suspended direct/indirect lighting fittings are fully controllable, with motion switching and daylight sensors to minimise energy consumption.
The renewable energy components within the building include heating by a biomass boiler, fuelled by wood pellets, solar thermal panels, which provide hot water, and a large rainwater harvesting tank, supplying non-potable water needs for WCs.
Prefabricating the exposed concrete elements off-site ensured a consistent, high quality finish and reduced time and disruption on a tightly-constrained site.
This is a demonstration of successful holistic design and construction and a model for future offices.