A two-storey extension and optimised floorplan in the creative heart of the city

61-67 Old Street Offices

Location: Islington, London
Local Authority: London Borough of Islington
Client: Atlas Property Letting Services/Dome Assets
Size: 13,399 sqft
Status: Completed
Contractor: Pelican Construction
Structural Engineer: NN Engineering Consultants
M&E Engineer: Mecserve
Photographer: Jefferson Smith

MWA were appointed to explore the development potential of this existing five storey retail and commercial property, situated within the St. Lukes Conservation Area and located close to Old Street underground station. Planning permission was secured for a double storey extension increasing the GIA from 9,100sqft to 13,400sqft. In addition, MWA rationalised the existing circulation reducing the cores from 2 to 1 and in turn greatly increasing the efficiency of the building. Introducing two additional stories required a fully considered structural approach. Following a detailed analysis of the existing structure and the remodelling of an existing steel frame, the additional two storeys were added. The first a facsimile of the original building in masonry, with the second a top storey set back from the front façades and clad in zinc. Other works included the partial demolition of the building, removal of the existing flat roof and retention of the lower floors and masonry façades. The existing interiors have been stripped back to its masonry shell exposing the brickwork, which combined with the visible steel frame, provide contemporary industrial spaces.