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King’s Cross – S1 

London, UK

King’s Cross is one of today’s templates for urban place making, so our priority, when asked to contribute two new buildings to this site, was to develop spaces that both convey a strong sense of their own identity and express a relevance to and continuum with the public realm.

“The key is to acknowledge that there is a fine line between public, curated and private tenants’ realm, from the ground up to the rooftops of the buildings,” says Michel Mossessian.  “This is what really makes the spaces hang together and generate a strong and engaging urban and spatial character for users.”

Sitting adjacent to each other along Handyside Street, Buildings S1 and S2 are linked stylistically: classical contemporary, they are clad in a textured black stone that frames the buildings, forming the mass, and contrasts strongly with the light of the white ‘cavities’ in the façade.  These cavities frame the windows and connect the buildings to the exterior space, highlighting the connection to the public realm.  The space between the two buildings forms a dramatic sculptural void, linking them inextricably and creating an almost tangible form between them.   Acting as a passageway, the space leads to a new public square that will be home to some distinctive restaurants.

Building S2 is a commercial building totalling 190,000 sq ft of space.  It fronts onto Cubitt Park and comprises flexible open plan office space with retail and restaurants at ground floor, with a further nine floors of office space above with a generous landscaped roof terrace.


Argent LLP

Service Provided

Full Architectural Services




23,200 m²


On site, Completion 2020

Structural Engineers

Ramboll UK

Sustainability Rating

BREEAM Outstanding

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