One SnowHill

The amazing volume generated inside the building by the entrance lobbies and the internal and the external atria, allows the penetration and the diffusion of natural daylight through the floors, to create a sustainable and desirable working place.

The fully glazed main atrium, facing the Plaza, consists of impressive structural glazed units (2800 wide x 3900 high, weighing 600 kg each) climbing up to the ETFE atrium roof, supported by a 3-D steel structural framework.

Main entrances, giving personnel access to the building, to both the Queensway and Metro Boulevard Elevations, consist of bolted glass systems with vertical laminated glass fins with bolt fixings to support the glass screen. The three staircases are glazed with complimentary fritted structural silicone glazed system to maintain a consistent theme. The glass balustrades to the link bridges connect the working areas either side of the atrium void, thus allowing a better use of the common spaces.

One SnowHill

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Sidell Gibson
Sidell Gibson
Sidell Architects, established in early 2017 by Ron Sidell after leaving Sidell Gibson*, is informed by more than 40 years’ experience in the field. In 1973 he and Paul Gibson – now a consultant to the new company – founded the original Sidell Gibson Partnership. They were, with Giles Downes, Chris Curtis and fellow Partners of the day, responsible for the creation of a broad range of award-inning projects in the UK and countries overseas to include Germany, Iran, Spain, Switzerland and Libya. The Practice has been joined by several of Ron’s original team and the programme of work at Sidell Architects continues the same tradition of the high-level design of commercial offices, residential, hotel and leisure developments, cultural/heritage buildings and urban design master planning. Its commitment is to achieve maximum benefit and added value for clients, end users and the wider community. The office has the creativity and technical expertise to successfully deal with complex design issues, finding innovative solutions to satisfy planning requirements as well as environmental and sensitive site constraints.
One SnowHill

One SnowHill

By incorporating insulated panels and shading devices, a light, predominantly glass façade is achieved compromising sustainability

Project Specs

  • Location: Birmingham
  • Completed: 2009
  • Contractor: Kier Build Ltd, UK
  • Photographer: Charlotte Wood


One SnowHill

Unitized Structural Silicone Glazing (SSG)

The structural silicone unitized curtain wall system is a bespoke design in order to allow for the slab live load deflection and to integrate the feature glazed fins and horizontal glazed sunshades.

The optimal energetic balance of the building is achieved by means of Okalux® and vision DGU integrated with interstitial blinds to the South Elevation.
The horizontal glazed sunshades on the South Elevation, consisting of laminated glass with translucent PVB interlayer, provide further solar control to the façade.

The aesthetical spandrel panels integrated into the façade system create an attractive feature of the building, thus defining double-story height volumes.

The South Elevation, projecting outward at 6° toward the Birmingham Snow Hill railway station, connects with the rest of the building through scenic glazed corners.

Designed by

Sidell Gibson Architects

Sidell Gibson have master planned this significant City centre site at Snowhill Station in Birmingham to provide approximately 52,000m² net area of high quality offices, up to 5,000m² of retail and leisure space.

The site presents a complex 3-dimensional planning problem involving the realignment of the surrounding roads and junctions giving significant increases in area, connection to the station concourse and new transport interchange, and the incorporation of a new tram line on its own viaduct.

One Snowhill is on 15 levels: 12-storey office building above and a three-storey basement car park. It has internal and external atria which draw natural light deep into the building. Important feature of the South elevation is the 6° outward sloping façade.

Vertical translucent glass fins are incorporated in the north-east façade, and double skin flush glazing with integral blinds on the south-east. The south-west façade employs horizontal fins, and the raked angle also helps shading from high level sun.

Other Façade Systems