16 Chart Street is a redevelopment of a 1930s former furniture warehouse located in Hoxton. The project uses engineered timber to create contemporary, adaptable office space whilst retaining almost all of the original structural fabric and minimising the upfront embodied carbon of the building.
Using CLT panels and glulam beams, the existing four-storey building has been extended to include a new building over the yard as well as a new office space on the top floor of the main building.
Throughout the project the timber has been left exposed, mimicking the natural exposed masonry, concrete and steel finishes of the original building.
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LocationHoxton, London
Completion Date2021
ArchitectIan Chalk
ClientHeyne Tillett Steel/CSI Investment
Project TypeCommercial
Building TypeStudio and office building
Structural EngineerHeyne Tillett Steel
Structural Timber EngineerB&K Structures
Main ContractorConamar Building Services
Wood SupplierStora Enso
MEP EngineerPeter Deer Associates
PhotographerEdmund Sumner
Product InfoCross laminated timber; glulam columns and beams; laminated veneer lumber
Timber SpeciesEuropean whitewood (spruce); European beech
Upfront carbon emissions (A1-A5)362 kgCO2e/m²
Operational energy (B6)89.6 kwh/m²/year
Overall area-weighted U-value0.96 W/m²K
Design life60 years
Structural materials usedTimber and steel
The award-winning end results are a considered expression of the building’s construction; with expressed panel joints, exposed lamellas and undisguised connections all testifying to the buildings sequencing.
Using CLT panels and hardwood LVL beams, the existing four-storey building was extended sideways over a new undercroft entrance, and upwards with the addition of a new third-floor level.
Through low-carbon structural design and the reuse of the existing structure, the project has achieved both LETI and RIBA 2030 targets for embodied carbon.
