We are conscious of our environmental impact and actively work to embed sustainability into our business and improve our environmental performance. We do this in a number of ways:
- Measurement of Scope 1, 2, and Scope 3 emissions
- Strategy and reduction planning
- Stakeholder and supplier engagement
- Governance, and progress reporting
We’re proud to be a Planet Mark Certified Business. Planet Mark is an internationally recognised leader in net zero certification, with years of experience in helping businesses to reduce emissions and secure net zero targets. Planet Mark is officially recognised by the United Nations Framework Convention on Climate Change (UNFCCC) as a Cooperative Climate Initiative and is a partner of the UN High-level Climate Champions. Its process and mark is recognised by government and business standards, driving assurance in sustainable progress.
Being Planet Mark Certified means that we have taken the first step towards achieving net zero, at a critical time for our planet. As part of our commitment to making Dehns more sustainable, we have been measuring carbon emissions with Planet Mark since 2021.
To progress on the journey to net zero, it is important that we measure the full inventory of our carbon footprint as we cannot manage what we do not measure. As a Planet Mark Certified Business, we are therefore committed to increasing our reporting parameters each year, to eventually understand the carbon emissions associated with all our business activities, across our entire value chain. This is an important step on our journey to net zero as an organisation’s sustainability journey is also a measurement journey.
Once we know our total carbon footprint, we will be able to establish net zero targets and work towards achieving a 90% reduction across our Scope 1, 2 and 3 emissions, to achieve net zero.
As part of being Planet Mark Certified, we are committed to achieving an annual 5% reduction in Scope 1 and 2 emissions as well as minimum thresholds for data quality to ensure rigour in our measurement.
“Planet Mark Certified – Business” is the first milestone in Planet Mark’s Net Zero Certification Programme.
Take a look at our latest Planet Mark certificate for our 2024/2025 reporting year to learn more about our measurement journey.

Additional Environmental and Sustainability Certifications and Reports
EcoVadis
As part of our commitment to meeting not only our own corporate sustainability goals, but also those of our clients, Dehns regularly submits data to EcoVadis. More and more companies, including our clients, are under immense pressure to include details of carbon footprint through the supply chain as part of their overall ESG reporting. By completing the EcoVadis assessment and sharing transparency about our sustainability practices, we’re able to showcase our compliance and demonstrate that we are an environmentally responsible service provider.
EcoVadis recognises companies that have completed the EcoVadis assessment process and demonstrated a strong management system that addresses sustainability criteria, as outlined in the EcoVadis methodology.
The Carbon Disclosure Project (CDP)
CDP is a global non-profit that runs the world’s only independent environmental disclosure system for companies, capital markets, cities, states and regions to manage their environmental impacts. With the world’s largest, most comprehensive dataset on environmental action, the insights that CDP holds empower investors, companies, cities, and national and regional governments to make Earth-positive decisions.
By scoring companies from D to A, CDP facilitates a journey from disclosure, through understanding what to measure and how to take tangible, Earth-positive actions. CDP regularly raise the bar for what qualifies as environmental leadership in line with emerging science and market needs for greater environmental transparency.
Dehns is a B scored CDP company (companies are scored from D to A, with A being the most desirable score).

Heart of the City
Dehns has been a part of Heart of the City since 2020, and is a member of the Foundations for Responsible Business programme. Through this programme Dehns has been provided with support to develop a responsible business approach, focusing on people, environment and community. As long-time tenants of the City of London (since the 1980s), we are committed to building responsible business practices that will have a positive impact on our local community.
