Insulated double glazed unitised curtain walling with aluminium fins
100 Liverpool Street

The units, mainly flat, are positioned flat and facetted to accommodate the plan of the building, which is characterized by different facetted/curved areas; for the sectors with a small radius, it was necessary to manufacture curved glass units.

In correspondence with the horizontal unit joint there is a bespoke designed vertical extruded aluminium fin. The finishing of profiles and internal panels is Polyester Powder Coated RAL 7016, whilst for the externals a dark blue/grey coloured anodized finish has been adopted.

100 Liverpool Street

The lower part of the building features a so-called “skirt façade (about 700 sqm), consisting of silk-screen printed, flat, and curved, laminated glazing that taper on the elevation. The skirt also has the aluminium vertical fins

Vertical tapered aluminium fins are installed in the joint between the glasses, providing continuity to those of the floors above. This “skirt” façade outlines the clear separation between the office area typical floors and the retail area of the ground floor.

On the higher floors there are terraces that gradually narrow the building. These facades include doors with automated opening, while on the entire external crown of the terrace there are free standing glazed balustrades consisting of flat and curved laminated glass with stainless steel handrail (about 1000 square meters).

The cladding of the plant area, on the top of the building, consists of a stick system with steel transoms (2100 sqm) which are arranged with an articulated geometry in section.

This shape guarantees the natural ventilation of the systems behind and, at the same time is very efficient in concealing the plant from the elevation. This façade, like the others of the typical elevation, also incorporate silk-screen printed double glazing and tapered vertical fins with a depth of up to 700 mm.

Hopkins Architects
Hopkins Architects

Multi-awarded practice, Hopkins Architects have helped pioneer British architecture since its founding by Sir Michael Hopkins in 1976. With Norman Foster, Richard Rogers, Terry Farrell and Nicholas Grimshaw, Hopkins was one of the leading figures in the introduction of high-tech architecture into Britain. It is now led by six Senior Partners and it's based in London, having completed projects throughout the world. Deeply-rooted architectural, environmental and social convictions guide its designs.

The practice is known for its attention to detail, innovative approach to construction, honest expression of materials and its energy-efficient designs. Its first building outside of the United Kingdom was the headquarters for GEK in Athens in 2003, followed by Tokyo's Shin-Marunouchi Tower in 2007. It has now designed buildings on four continents, with projects completed or under development in the UK, the US, Italy, Greece, Turkey, India, Japan, the UAE and Saudi Arabia.

The founders were awarded the Royal Institute of British Architects Royal Gold Medal in 1994 and Michael Hopkins was awarded the CBE and knighted for services to architecture. The Royal Gold Medal citation describes the Hopkins' work as "not only a matter of exploiting technology to build beautifully, nor simply of accommodating difficult and changing tasks in the most elegant way, but above all of capturing in stone and transmitting in bronze the finest aspirations of our age"; praising their contribution to the debate about the "delicate relationship between modernity and tradition". Also adding "For Hopkins, progress is no longer a break with the past but rather an act of continuity where he deftly and intelligently integrates traditional elements such as stone and wood, with advanced and environmentally responsible technology."

100 Liverpool Street

100 Liverpool Street

A new energy to the existing outdated building with a dynamic renovated identity thanks to a new curving high performance façade

Project Specs

  • Location: London
  • Contractor: Sir Robert Mc Alpine
  • Client: British Land - GIC
  • Year of completion: 2021
  • PH: Jack Hobhouse Photographer + Charles Hosea


100 Liverpool Street


Insulated double glazed unitised curtain walling with alumiunium fins

This 11-storey building is entirely clad with a structural silicone unitised façade, which extends along the entire perimeter for an area of 15,000 square meters and for a total of 2500 units. Each aluminium framed structural silicone unit features four panels: in the vision area we have a double-glazed vision unit a with high-performance coating, two glazed spandrels with a silk-screen printed vertical slotted design, a metal spandrel fascia with recessed flat aluminium surface, with surrounding extruded aluminium profiles, arranged horizontally.


Designed by

Hopkins Architects

The project has given new energy to the existing outdated building, stripping it back to its structural frame and providing it with a dynamic new identity thanks to a new curving façade and revamped public realm.

At the building's heart there is a dramatic elliptical atrium surrounded by flexible office accommodation on bright, well-organized floor plates. Three new floors have been created at the top of the building, set back to allow for planted terraces and outdoor amenity space.

The ninth floor has the option to include a new restaurant with a large accompanying terrace featuring amazing views out over the City. Three new efficient cores serve the office levels; they have been designed for maximum flexibility and are able to accommodate single occupier or multiple tenancies. The scheme also includes a number of high quality retail units on the lower ground, ground and first floors that will accommodate a variety of tenants. The building features an array of sustainable features that complement the significantly reduced carbon footprint associated with the reuse of the structural frame; it is expected to receive a BREEAM Excellent rating. It includes high-efficiency building systems, the re-engineering of the existing structural frame, photovoltaic panels and outdoor-planted areas on the upper terraces. Additionally, a significant cycle storage facility is included along with a shower and changing facility.