Our science-based climate commitment

Our climate targets have been officially validated by the Science Based Targets initiative (SBTi).

What are science-based targets and why do they matter?

The SBTi brings together the expertise of CDP, the UN Global Compact, World Resources Institute (WRI), and WWF to help organisations worldwide translate climate science into actionable business strategies.

SBTi validation means our greenhouse gas emissions reduction targets align with the latest climate science and support the Paris Agreement’s critical goal of limiting global warming to 1.5°C. The validation process ensures our targets are not only ambitious enough to make a real impact, but also achievable within our industry context.

Our targets

Overall net-zero target:

The Portman Estate commits to reach net-zero greenhouse gas emissions (GHG) across the value chain by FY2045.

Near-term targets:

Energy & Industry: The Portman Estate commits to reduce absolute scope 1 and 2 GHG emissions 42% by FY2030 from a FY2021 base year. The Portman Estate also commits to reduce absolute scope 3 GHG emissions from purchased goods and services, capital goods, and downstream leased assets 25% within the same timeframe.

Forest, Land and Agriculture (FLAG): The Portman Estate commits to reduce absolute scope 1 and 3 FLAG GHG emissions 30.3% by FY2030 from a FY2021 base year.*

The Portman Estate also commits to no deforestation across its primary deforestation-linked commodities, with a target date of December 31, 2025.

Long-term targets:

Energy & Industry: The Portman Estate commits to reduce absolute scope 1, 2 and 3 GHG emissions 90% by FY2045 from a FY2021 base year.

FLAG: The Portman Estate commits to reduce absolute scope 1 and 3 FLAG GHG emissions 72% by FY2045 from a FY2021 base year.*

*The target includes FLAG emissions and removals 

Progress and reporting

We will report on our progress Bi-annually through our sustainability impact report where you can also learn more about our roadmap to achieving these targets.

Learn more about the Science Based Targets initiative at sciencebasedtargets.org

We support Westminster City Council’s net zero carbon targets and recognise our contribution towards a greener Westminster. We are committed to partnership working with the Council, industry partners and our peer group to create a chain or responsibility from occupiers to support the Council’s targets. This includes our development at 1 – 9 Seymour Street and our Passivhaus refurbishment at 2 Gloucester Place Mews.