150 Holborn

London, United Kingdom
Pushing the boundaries of sustainable development and design

150 Holborn will bring together the growing brands of the international consultancy of the Dar Group under one roof for the first time globally.

Our design replaces a 1980s office block with a modern, mixed-use scheme that incorporates public retail, café and exhibition space on the ground floor, and a private landscaped roof terrace above with excellent views for employees.

Located in the thriving Midtown area of London, the building is designed at a limited height to maintain views of St Paul’s Cathedral and respect the neighbouring townscape. The interior design ensures each respective business keeps its unique identity while supporting cross-brand interaction.

With collaboration key, the space will unite over 1,000 staff in a single state-of-the-art workplace, providing Dar Group with a sustainable platform for growth for the next decade and beyond.

Design evolution

A sweeping pavilion and roof garden promotes staff and local well-being with a large planted terrace offering excellent views towards St Paul’s Cathedral. The building provides 231 cycle parking spaces and is located within walking distance to several major transport interchanges, including Chancery Lane Station directly outside the building entry. Food and beverage outlets on the ground floor provide employees with direct access to high-quality healthy food.

The central entrance lobby features a street-facing café, exhibition and reception space, and an atrium with a large feature staircase.
What makes it cool
A building with a connective heart to facilitate a collaborative environment for ideas to be exchanged.
Workplace Strategy

Our workplace strategy consolidates separate brands while providing them with their own identity. Throughout our design, we incorporated opportunities for the different companies to come together, including the central entrance lobby, which includes a street facing café, exhibition and reception space, an atrium with feature stair, and sweeping roof pavilion with roof gardens.

Design Excellence

To encourage a sense of visual continuity, the façades proportions and scale follow and mimic the immediate context. Ground floor retail along the east and west side appears at double height thanks to clever inset detailing. The deliberately ambiguous main lobby allows both a corporate reception and public café to coexist in the same space whilst acting as an inviting window to the companies’ brand and ethos. This blurred boundary is punctuated by a first-floor glazed bridge above the entry turnstiles, creating a dynamic backdrop for multimedia exhibitions.

View along High Holborn

Interactivity and knowledge sharing are promoted throughout. An offset arrangement of cores is linked by four lifts and a large shared staircase. We designed the space with the intention that the stairs should be used as often as possible to promote opportunities for chance meetings and discussion between members of different companies.

Sectional façade view

The building has been designed to be energy efficient, adaptable to climate change with increase resilience. A high-performing building envelope maximises both daylight and views out during London’s long winters while minimising solar gain. The building’s façade fins have been arranged to provide solidity and reduce solar exposure. The flexible system applied to the external metal fins can be adapted with future needs. The uniformity of the glazing allows for future insertion of natural ventilation. While we designed 150 Holborn as a headquarters building, it has the adaptability to be used as a different type of commercial space in the future.

Project Team

Linzi Cassels