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New Deloitte London office: a world-leading building for sustainability and wellbeing

12 December 2018

Deloitte’s new UK and North West Europe headquarters at 1 New Street Square, EC4, is the largest office in the world to achieve leading certifications for being both an exemplar green building and one designed to enhance the wellbeing of its people.

The new 270,000 sq ft HQ, which Deloitte occupied in July, is the culmination of a four year programme redefining the workplace of the future for the firm’s people and clients.

David Sproul, senior partner and CEO of Deloitte North West Europe, said: “We are incredibly proud of what we have achieved with 1 New Street Square and the precedent we have set in our world-leading building for sustainability and wellbeing that will benefit our people, clients and the environment. We had a once-in-a-decade opportunity to further strengthen and grow our London campus: this workplace will support a rapidly-changing talent pool and offers a huge range of different working activities and styles with spaces that can fuel creativity and will ultimately generate more collaborations across the business. 

“Sustainability is important to us, and with the new building we have focused on really driving energy efficiency, utilising onsite renewable energy sources and procuring 100% green electricity. We have reduced water consumption and waste production, and we prioritised materials with a low environmental impact. It’s great to see these initiatives being recognised through the achievement of a BREEAM Outstanding certification.”

The flagship office has achieved the highest score for sustainability of any global commercial building fit-out. Using BREEAM, the leading green-building certification, Deloitte’s office scored a record 94%, far exceeding the ‘Outstanding’ threshold and in doing so, becoming the highest scoring BREEAM 2014 Refurbishment & Fit-out project in the world.

The firm also attained WELL Certified™ Gold - a prestigious distinction awarded by the International WELL Building Institute™ to workplaces that enhance people’s health and wellbeing. In securing this rating, 1 New Street Square is now the largest WELL Certified™ Gold for ‘New and Existing Interiors project’ in the world. The office earned the distinction based on seven categories of building and operational performance including air, water, light, nourishment, fitness, comfort and mind.

Gavin Harrison, real estate sustainability lead at Deloitte, said: “What we have achieved is industry-defining. On its own, our sustainability programme was world-leading in that we delivered the highest BREEAM 2014 fit-out score ever. Doing this alongside an important wellbeing strategy makes our project unique and reiterates our commitment to providing colleagues with the best workspaces. In delivering both and becoming the first office fit-out to attain BREEAM Outstanding and WELL Certified™ Gold worldwide, we have redefined our blueprint for the workplace of the future.”

Supporting the Government’s first Green GB Week earlier this year, Deloitte has pledged to apply these sustainability and wellbeing principles to all future UK office fit-outs - delivering high environmental standards, optimising operational performance and providing the healthiest spaces for its people.

Deloitte started its Green Journey initiative in 2011 and has since seen building-related emissions drop 72% per employee. It has also eliminated single-use plastic cups from the London campus and ensured redundant office furniture from vacated offices was donated or recycled with nothing going to landfill.


Note to editors

Images of 1 New Street Square available on request.

Redundant office furniture for this project totalled 5,000 workstations and 3,500 chairs from vacated offices Athene Place and Stonecutter Court, EC4.

BREEAM is the ‘Building Research Establishment Environmental Assessment Method’, the world’s leading sustainability assessment method.

A BREEAM score assesses the fit-out against the categories of Management, Health & Wellbeing, Energy, Transport, Water, Materials, Waste, Land-Use & Ecology, Pollution and Innovation with the final score attaining a rating of Pass (>30%); Good (>45%); Very Good (>55%); Excellent (>70%); or Outstanding (>85%).

Related to offices, there are three versions of the assessment: New Construction; Refurbishment and Fit-Out; and In-Use.

BREEAM is a global standard. The other well-recognised global standard is LEED, which is overseen by the US Green Building Council (USGBC). There are also a number of regional – but equally valid, schemes that can be used to assess the sustainability credentials of buildings.

1 New Street Square is the first office fit-out to attain both BREEAM Outstanding and WELL Certified™ Gold worldwide. Other office fit-outs may have achieved an equivalent level using a different rating system such as LEED.

For more information please visit the BREEAM website.

About the WELL Building Standard™
The WELL Building Standard (WELL) is the leading global rating system focused exclusively on the ways that buildings, and everything in them, can improve comfort, drive better choices, and generally enhance the health and wellness of people who use them.

WELL Certification assesses the fit-out across seven categories of Air, Water, Nourishment, Light, Fitness, Comfort and Mind, with the final WELL score attaining a rating of Silver, Gold or Platinum.

Related to offices, there are three project types: Core and Shell, New and Existing Buildings, and New and Existing Interiors. 1 New Street Square is the largest WELL Certified Gold for New and Existing Interiors project worldwide (267,278 sq ft).

For more information on the WELL Building Standard™, please visit the website.

About Deloitte
In this press release references to Deloitte are references to Deloitte LLP, which is among the country's leading professional services firms.

Deloitte LLP is the United Kingdom member firm of Deloitte Touche Tohmatsu Limited (“DTTL”), a UK private company limited by guarantee, whose member firms are legally separate and independent entities. Please see for a detailed description of the legal structure of DTTL and its member firms.

The information contained in this press release is correct at the time of going to press.

For more information, please visit

Member of Deloitte Touche Tohmatsu Limited

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