Castellum

Castellum AB, a real estate services company headquartered in Sweden, has demonstrated a strong commitment to reducing its environmental impact through ambitious emissions reduction targets.

Emissions Data:

• In 2025, Castellum reported total emissions of approximately 63,881,000 kg CO2e. This included Scope 1 emissions of around 656,000 kg CO2e, Scope 2 (market-based) emissions of approximately 5,185,000 kg CO2e, and Scope 3 emissions totalling about 58,039,000 kg CO2e. The largest contributors to Scope 3 emissions were purchased goods and services (36,191,000 kg CO2e) and fuel and energy-related activities (8,076,000 kg CO2e).
• In 2024, Castellum's total emissions were approximately 57,052,000 kg CO2e. Scope 1 emissions were around 639,000 kg CO2e, Scope 2 (market-based) emissions totalled about 4,946,000 kg CO2e, and Scope 3 emissions amounted to approximately 51,467,000 kg CO2e, with purchased goods and services being the primary source at 32,408,000 kg CO2e.
• In 2023, Castellum reported total emissions of approximately 76,242,000 kg CO2e, with Scope 1 at 384,000 kg CO2e, Scope 2 (market-based) at 10,260,000 kg CO2e, and Scope 3 at 65,598,000 kg CO2e.

Climate Commitments and Reduction Targets:

Castellum is actively working towards significant climate goals, including:

• Net-Zero Emissions by 2040: Castellum has committed to achieving net-zero greenhouse gas emissions across its entire value chain by 2040. This long-term vision is supported by specific roadmaps for different emission scopes.
• Science Based Targets initiative (SBTi): The company's net-zero targets have been validated by the SBTi, ensuring they align with climate science.
• Near-Term Reductions: Castellum aims for a 100% reduction in absolute Scope 1, 2, and 3 GHG emissions by 2030, using a 2017 base year.
• Project-Specific Goals: By 2030, all of Castellum's projects are to be climate neutral.
• Intensity Targets:
  • A reduction of 46% per square metre in climate impact from property management (Scope 1 & 2) is targeted by 2030, with a long-term goal of 77.9% per square metre by 2040.
  • Climate impact from purchased goods and services (Scope 3) is set to decrease by 52% by 2030.
  • Climate impact per square metre of the total asset portfolio is targeted for a 97% reduction by 2040.
  • Upfront embodied scope 3 GHG emissions of new buildings, covering capital goods, are targeted for a 45.4% reduction per square metre by 2030.

Castellum's reporting indicates progress and ongoing efforts to decarbonise its operations and value chain in line with global climate objectives.