Climate risk on a +180-asset European logistics portfolio: exposed, but not vulnerable.

01. Challenge Excel couldn’t scale to a portfolio of +180 logistics assets.

The client, a logistics real estate developer and asset manager with operations across Europe, needed climate risk analysis to support DGNB taxonomy reporting.

DGNB certification at the asset level requires three connected assessments:

• Climate change mitigation, emissions and decarbonization pathway.
• Climate risk and vulnerability, physical hazards today and under future scenarios.
• Adaptation planning, concrete measures where vulnerability is material.

The client had compiled extensive asset data, but it lived across multiple Excel workbooks edited by different team members. They lacked the in-house climate-data tooling to run hazard models at portfolio scale, and version drift across spreadsheets was already creating reporting inconsistencies.

02. Approach A three-phase assessment, batched by tranches of 10–40 assets.

The client engaged Blue Auditor through RM Engineering, a sustainability consultancy specializing in DGNB advisory. We structured the work in three phases and ran them in tranches of 10 to 40 assets, so the client could feed early findings into reporting while the rest of the portfolio was being processed.

We migrated the client’s spreadsheet inputs into Blue Auditor’s platform so future taxonomy reporting cycles can be run continuously, not as a one-off audit.

03. Key findings Exposure is not the same as financial vulnerability.

The gap between exposure and vulnerability is the part of the story that mattered most for the client. A pure hazard screen would have flagged the majority of the portfolio as ‘at risk’ and triggered unnecessary adaptation capex. Layering vulnerability data, including existing adaptation already in place at the asset level, collapsed the at-risk universe to a small minority of assets.

04. Outcome DGNB-ready, no portfolio-wide adaptation programme needed.

With the full assessment in hand, the client had a defensible, asset-by-asset basis for DGNB taxonomy reporting and could direct adaptation spend only where it was financially justified. A handful of assets were flagged for site-level adaptation; the remainder of the portfolio was confirmed as DGNB-aligned without intervention.

Because the underlying data now lives inside Blue Auditor rather than across spreadsheets, the client can re-run the assessment each reporting cycle without rebuilding the analysis from scratch.

05. Takeaways What asset managers can take away.

• Lock the certification target before you start. Aligning on DGNB at the outset would have spared multiple revisions of the climate risk assessment. Define the framework you’re reporting against, DGNB, EU Taxonomy, CSRD, before scoping the analysis.
• Don’t run portfolio climate risk in Excel. Multiple workbooks edited by multiple people produced version drift before the analysis even started. A database keeps every assessment auditable across reporting cycles.
• Separate exposure from vulnerability. A hazard screen alone overstates the problem. Layering vulnerability, construction, drainage, on-site adaptation, is what turns raw climate data into a defensible capital-allocation answer.
• Phase the work. Running 130 assets in tranches of 10–40 let the client begin reporting on early tranches while later tranches were still in progress.