80 Charlotte Street

Built

(c)Jack Hobhouse

80 Charlotte Street is an inherently urban, major mixed use development comprising offices, residential (inc affordable housing), retail and a new pocket park. It is net zero carbon.

NEW LONDON AWARDS 2021

Shortlisted in the WORKING category
80 Charlotte Street is Derwent London’s first all-electric net zero carbon building. The 90m x 90m island site has been combined into one building, mixing existing facades with new-build elements, and characterised by varying facade treatments, setbacks and terraces. This technique fragments the block into a seemingly smaller scale while still retaining deep, flexible floorplans, meeting the brief for a large-scale office and attracting pre-lets from Arup and Boston Consulting Group. The building incorporates social spaces such as a cafe, roof terraces, bar and publicly accessible park.

Zero Carbon London

→ Targeting 28% lower embodied carbon intensity than the RICS benchmark

→ Net zero operational carbon building from day one
→ BREEAM Excellent, LEED Gold and Energy Performance Certificate (EPC) B

→ All reinforcement has a minimum of recycled content of 90% by volume

80 Charlotte Street is a major mixed use development, net zero carbon scheme in the heart of London’s Fitzrovia. Occupying an urban block and the adjacent Asta House, it delivers over 320,000 sqf of workspace and 55 new apartments, including affordable housing. The project is inherently urban in its integration of the city and street context, both in its massing and composition. The inclusion of a new public garden and retail add to this civic quality.

The main block is characterised by varying facade treatments, setbacks and terraces. Make retained portions of original brick facades along Whitfield Street, while unitised concrete cladding wraps half of the block, with new grey and black brick elevations completing the rest. The main entrance is framed by a monolithic weathered steel structure.

80 Charlotte Street is a building conceived with net zero carbon operation in mind, and the building’s size lends itself to an economy of scale in terms of material and environmental performance.

The building is designed for a decarbonised energy supply through the specification of an all-electric energy supply, enabling Derwent London, to operate a net zero operational carbon building from day one. The building achieves a 28 per cent lower embodied carbon intensity than the RICS office benchmark.

Parts of original facade on the main block and all of Asta House have been retained. Denser structural steel grid is combined with precast concrete planks with a minimal concrete topping which produces less embodied carbon. Using structural elements as architectural finishes reduces waste and need for additional materials.

Project information

Status

Built

Borough

Camden

Size

40395 sq m

Estimated completion

June 2020

Location

55 Charlotte St., London W1T 4PB, UK

Team Credits