50 Berkeley Street

A complex glazing and cladding package supported the Grade A transformation of a prestigious Mayfair office building

Project Story

Located in the heart of Mayfair, 50 Berkeley Street is a prestigious office refurbishment that brings new life to an established London building. Originally a substantial 1930s headquarters building, 50 Berkeley Street has evolved successive phases of adaptation. Its latest transformation is a major refurbishment-led repositioning, designed to create high-quality Grade A office space while retaining and upgrading the character of the existing structure. 

Led by BEAM, with Stiff + Trevillion as architect, Veretec supporting project delivery and BAM Construction as main contractor, the scheme enhances and extends the building to provide generous office floorplates, improved environmental performance and new private and communal rooftop terraces with views across London’s West End.

The development involves a sensitive refurbishment approach, including the removal of existing mansard roofs, reconstruction of upper levels, upgraded building services, lightwell infills and the creation of new amenity spaces. The scheme is also designed with strong sustainability credentials, including an all-electric strategy and targets such as BREEAM Outstanding, LEED Gold, WELL certification, NABERS 5* and EPC A.

We were appointed to deliver a diverse glazing and architectural cladding package. Our scope included re-glazing to the existing unitised curtain walling, replacement glazing to punch windows, glazed curtain walling and rooflights to two glass atriums and dual-finish anodised curtain walling with glass sliding doors to the upper-level terraces.

At roof level, we delivered rainscreen cladding and plant screens to support the new extension works. At ground floor and reception level, our package included anodised curtain walling, glazing, doors and cladding, alongside bespoke bronze-clad vitrine screens, entrance glazing, a bronze-clad revolving door, pass doors and a bespoke canopy to the main reception entrance.

Project Summary

50 Berkeley Street OAG Architectural Glass Roofs
50 Berkeley Street OAG Architectural Glass Atriums
50 Berkeley Street OAG Architectural Glass Roofs
50 Berkeley Street OAG Architectural Cladding
50 Berkeley Street OAG Architectural Glass
50 Berkeley Street OAG Architectural Glass Roofs
50 Berkeley Street OAG Architectural Glass Atriums
50 Berkeley Street OAG Architectural Glass Canopies
50 Berkeley Street OAG Architectural Glass
50 Berkeley Street OAG Architectural Glass Atriums
50 Berkeley Street OAG Architectural Glass
Bronze-clad

Vitrine screens and revolving door

Glazed curtain walling

to two glass atriums

Project Story Continued

The project required careful coordination across a broad range of specialist elements. We worked simultaneously across multiple areas of the building, from ground to level 9, with each location bringing its own technical, logistical and sequencing challenges.

Working within an existing structure demanded a flexible and responsive approach. Interfaces with retained building fabric, evolving site conditions and the need to coordinate across multiple levels placed strong emphasis on design resolution, procurement planning and installation sequencing.

From high-level roof works to finely detailed bronze entrance elements, 50 Berkeley Street demonstrates our ability to deliver complex glazing and cladding packages within demanding refurbishment environments.

The completed works contribute to a major Mayfair transformation — one that respects the history of the building while preparing it for the next generation of workplace use.

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50 Berkeley Street OAG Architectural Glass Atriums

50 Berkeley Street

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50 Berkeley Street

50 Berkeley Street, London, UK

A complex glazing and cladding package supported the Grade A transformation of a prestigious Mayfair office building