Two men in hi-viz vests and hard hats surrounded by green plants


Protecting the planet is no longer a choice, but an obligation.

In an increasingly environmentally conscious world, we’re all under pressure to realise ambitious eco-friendly commitments – without breaking the bank. It’s a challenge that will endure for generations to come.

In the ever-evolving landscapes of regulation and technology, understanding the wider impact of our work is paramount. Working with a partner that understands these touchpoints releases the pressure valve, providing the confidence needed to meet green commitments to our planet and communities.

Our people are industry leaders in delivering unbeatable environmentally sustainable and socially responsible spaces, and helping clients monitor and dramatically improve their performance and impact.

Whether bringing a sustainable future to a tired office block, building a zero-carbon school or even delivering a hyperscale datacentre in half the usual time, we operate at every stage of the lifecycle.

From Europe’s first WELL Platinum office in London to our wide-range of zero carbon distribution centres and ‘BREEAM outstanding’ certified spaces, we consistently help clients achieve exceptional results – ensuring everything we do leaves a lasting legacy.

"The aim shouldn't be to minimise damage to the environment, but to ensure that every action we take leaves a net gain to society."

Debbie Hobbs, Group Director for Sustainable Business, ISG

Time for revolutionary change: Aiming for net gain

We drive revolutionary change in our industry, promoting the sustainability agenda through our own operations and supporting our clients to achieve their sustainable business goals. We want to create a place where our people can thrive, deliver performance we can be proud of, support communities who are better for knowing us, and ensure environments are both protected and enhanced.

With the steps we are taking as a business to commit to a sustainable future, we are dedicated to ensuring that we accelerate this change as soon as we can, by taking our employees, suppliers and contractors on the journey with us. With this ambition, and our stakeholder engagement activities, we are focused on four core areas:

  • Peter Kelly

    Peter Kelly

    Group Director of Sustainable Operations

  • Anna Foden

    Anna Foden

    Head of Sustainability for UK Fit out and Retail

Find out more

Environmental management

Our aim is to continue best practice in managing environmental issues, but also ensure we develop a 'net gain' in biodiversity on larger projects and start targeting water reduction at our sites.

Climate change and carbon

We are committed to achieving net zero carbon emissions by 2030, and introducing an internal carbon tax by 2024 that can be used to fund sustainable innovation projects across our business.

Circular economy

Our circular economy policy aims to stretch our business, ensuring we develop our own ISG Materials Passport linked to our BIM models for all larger projects, and commits us to reusing materials as much as possible.

Social value

We want to go further than just achieving client KPI's. We are committed to achieving a minimum of 25% social value on every project, compared to the contract value, as costed by the Social Value Portal.


Carbon Reduction Plan

Download here


Proud member of the Green Building Council UK

UKGBC is the membership-led industry network radically transforming the sustainability of the built environment. Powered by 700+ members, UKGBC is at the forefront of positively influencing policy, identifying the pathways to propel the sector forward sustainably and driving the solutions to transform our buildings, communities, cities and infrastructure so that people and nature thrive.

Find out more

Biodiversity Conservation: A Call to Action for Sustainable Urban Development

Poppy Cunningham highlights the UK's biodiversity crisis and the country's new mandate for a 10% Biodiversity Net Gain. Emphasising comprehensive training and intelligent ecology practices, Poppy underscores the opportunity for the industry to make a lasting impact and attract talent committed to sustainability.

low-carbon retrofit | ISG

Low-carbon retrofit

As organisations are transitioning from short-term decision-making to long-term preparation for a new reality, underpinned by the ESG agenda as the driving force, our teams offer the expertise and knowledge to assist you in reaching your carbon reduction goals for your estate. We can help you set new standards for low energy use, carbon emissions and impact on natural resources.

Our low-carbon retrofit offering will ensure that your building stays ahead of energy usage legislation and maximises the performance of your estates and to meet your commitments and deliver long-term return on investment. 

Sustainability | ISG

ISG's research and insight report 'Sustainable Buildings Monitor: Redefining Value'

Establishing a purpose-driven way to measure the true value of property.

'Sustainable Buildings Monitor: Redefining value' looks to create a new framework to identify untapped areas of development opportunity across the UK.

Research for 'Sustainable Buildings Monitor: Redefining value' encompassed in-operation performance data, social value, net zero, embodied carbon and circularity measurements, as well as proximity to green energy sources and local labour markets. This new research reveals key and untapped areas of development opportunity across the UK.

Our industry is clearly at an inflection point, and ISG seeks to think differently and be a force for good - advocating for and practising sustainable construction methods and modern methods of construction. We’re encouraging the debate and facilitating knowledge transfer; bringing investors, occupiers and local government to the table and stimulating those conversations based on our findings.

Campaign image

‘Space to innovate’

ISG's latest research report, 'Space to innovate', reveals a link between built space and innovation, with our research showing that more appropriate space to innovate drives greater levels of innovation. Innovation which leads to more productivity, growth and nationwide prosperity.

ISG's Performing Places

In support of creating places for people and businesses to thrive, ISG’s Performing Places is an operational performance system; a service we provide to clients to support their effective day-to-day running of their building/estate to maximise performance. This covers energy, carbon, water, ventilation, and comfort conditions.

An operational performance system
The operational performance system monitors a building’s performance by extracting data via intelligent metering and building management systems. We have partnered with Synapsys, who provide Synapsys SIP+ interface devices which connect to our clients metering and controls systems. Performance data is then displayed on an interactive dashboard using the Synapsys, Energy Building Information Software (EBIS).
For more information please download our brochure here

Contact us

Peter Kelly

Peter Kelly

Group Director of Sustainable Operations

Anna Foden

Anna Foden

Head of Sustainability for UK Fit out and Retail