Castellum

Castellum's reported carbon emissions

Castellum Plc, a real estate services company headquartered in Sweden, has established ambitious climate commitments and reported significant greenhouse gas emissions. In 2024, Castellum reported a total of approximately 57.6 million kg CO2e. This figure includes Scope 1 emissions of around 639,000 kg CO2e, and Scope 2 emissions, calculated on a market-based approach, totalling approximately 4.9 million kg CO2e. Scope 3 emissions were substantial, amounting to about 52.1 million kg CO2e, with purchased goods and services being the largest contributor at approximately 32.4 million kg CO2e. The company's climate strategy includes a commitment to achieve net-zero carbon emissions by 2030. This goal is validated by the Science Based Targets initiative (SBTi). Castellum aims for net-zero emissions across its property management, project development, and customer journey operations. They have further committed to reducing emissions by 100% by 2030 from a 2017 base year, a target aligned with keeping global warming to 1.5°C. Earlier reports indicate varying emissions figures: in 2023, total emissions were approximately 86.3 million kg CO2e, and in 2022, they stood at around 120 million kg CO2e. Castellum also tracks its performance by reporting reductions in emissions per square metre. For instance, their project development portfolio showed a reduction of about 0.07 kg CO2e per square metre in 2026 and 0.06 kg CO2e per square metre in 2025, building on reductions of 0.05 kg/sqm in 2024 and 0.04 kg/sqm in 2023.