A Jewel In The Crown - New Lease Of Life For Hatton Garden Workshop

Proteus HR

Thanks in part to sparkling bronze anodised aluminium rainscreen cladding panels, an antiquated industrial building in the heart of Hatton Garden, London, has been given a new lease of life.

Following an £18.4 million refurbishment designed by Karakusevic Carson Architects, Record Hall has been transformed from an outdated former record depository, into a state-of-the-art, six-floor business centre with a striking exterior.

The brief given to Karakusevic Carson Architects by owners Workspace was to redevelop the 1920s structure on Leather Lane, part of the Hatton Garden Conservation Area, into a modern building that offers cost effective workshops suitable for companies working in both the jewellery and media and creative industries.

Redeveloped by main contractor HG Construction, Record Hall now offers 61,000sq.ft of office and studio space. The project involved refurbishing the existing four-storey building and adding a two-storey roof extension.

The upper levels of the building, including the new extension, are clad in striking Proteus HR Aluminium panels with a bespoke bronze United Anodisers (540) finish chosen to reflect the heritage of the area, which has been at the centre of London’s jewellery trade since medieval times.

Installed by FPP Facades, Proteus HR was also specified because it is a lightweight, strong and versatile cladding panel that creates an optically flat aesthetic. The integrated modular rainscreen panels feature an aluminium honeycomb core, structurally bonded between two thin gauges of lightweight metal skin to create an optically flat panel.



In addition, Proteus Facades fabricated bespoke extruded vertical and horizontal fins with an identical finish, which gives the impression that the cladding panels are recessed into the building. This further compartmentalises the façade against the existing brickwork and complements the art deco window styles that, when illuminated in the evenings, shimmer in the light and provides further countenance to the striking design for passers-by.


Energy Efficiency

Inclusion of the rainscreen cladding not only offers appealing aesthetics but adds to the energy efficiency by allowing the incorporation of high levels of insulation behind the panel – the relatively thinner panels allow increased insulation thickness on the inner structure whilst still maintaining the ventilated cavity behind the panels.

The Proteus HR panels provide the building with protection from the elements, too, including elevated windspeeds in this built up area with narrow streets dominated by medium rise structures.

Along with efficient new building services, the incorporation of high-performance insulation to both new and existing elements of fabric and a wildflower green roof have all contributed to the achievement of a BREEAM Excellent rating. 



The aim of the redevelopment at Record Hall is to support new and growing businesses to thrive. Boasting 86 units ranging from 170 to 7,000sq.ft, the building encompasses a Club Workspace outpost, the company’s co-working brand, along with ground floor café ‘The Archive’, high-tech meeting rooms, a co-working lounge and roof terraces offering views across the City of London. 

Formed of two distinct parts, the building is situated in a tight site on a narrow street, which resulted in the street-facing elevation resembling more of a back entrance. As such, the architects also extended outwards to the boundary line to reorganise the interior and bring the main entrance to the centre of the plan to give it a direct visual relationship with a new lightwell.



Proteus HR is available in steel, aluminium, zinc, stainless steel, copper alloys and other materials.

Picture: Proteus HR has helped give a new lease of life to an industrial workshop in the City of London.


Article written by Cathryn Ellis
10th May 2020


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