Cities are under pressure to clean up their freight emissions. Goods vehicles make up only 10% of urban traffic but account for a quarter of city CO₂ emissions. This is a disproportionate impact that policymakers can no longer ignore. One popular answer is the urban logistics facility: a hub positioned within the city that consolidates deliveries, enables cleaner transport modes, and cuts the number of trucks on the road. But a new study asks an inconvenient question; what about the building’s carbon footprint?
Published in Transportation Research Interdisciplinary Perspectives, the paper by Schelfhout and colleagues at Vrije Universiteit Brussel is among the first to place transportation savings and real estate emissions side by side in a single environmental accounting framework. Their case study is the Brussels Construction Consolidation Center (BCCC), a waterfront logistics hub that handles inbound construction materials by barge and distributes them to city sites by truck.
The transportation gains are real and significant. Under business-as-usual, suppliers drove over 103,000 vehicle kilometers in 16 months using diesel trucks. With the BCCC, that dropped to roughly 6,500 kilometers, generating annual transportation savings of around 45 tonnes of CO₂-equivalent. The shift to inland waterway shipping (far less carbon-intensive per tonne-kilometer than road freight) does much of the heavy lifting.
But the researchers didn’t stop there. Using Belgium’s TOTEM life-cycle assessment tool, they calculated the embodied and operational carbon for the warehouse, container office, and concrete plot over a 60-year service life. The result: the facility contributes approximately 16 tonnes of CO₂-equivalent per year. Deduct that from the transportation savings, and the net annual benefit lands at around 29 tonnes; still clearly positive, but meaningfully smaller than the transport-only picture.
There’s a time dimension too. The construction phase front-loads a substantial carbon “debt” of roughly 778 tonnes CO₂-equivalent. It takes around 18 years of continuous operation before cumulative savings exceed cumulative facility emissions — a break-even point that demands long-term commitment to make the investment worthwhile.
Perhaps most thought-provoking is the forward-looking sensitivity analysis. As urban freight decarbonizes — electric trucks, renewable grids — transportation emissions shrink, and the building’s share of total impact grows larger in relative terms. In a fully electrified scenario, facility emissions could dominate the balance sheet, making building design choices as strategically important as vehicle choices. Urban logistics hubs — or “proximity logistics” facilities — are returning to city centers as a key tool for zero-emission freight.
By consolidating goods and enabling cleaner modes of transport, they cut urban delivery emissions. Yet the carbon cost of building and operating these facilities is frequently ignored. This study examines that trade-off using the Brussels Construction Consolidation Center as a case study. Results show meaningful transportation savings, partially offset by the facility’s own embodied and operational emissions, yielding a net annual reduction of roughly 29 tonnes CO₂. Sustainable urban logistics planning must account for both transportation and real estate emissions together.
The practical implication is straightforward: treating logistics hubs as inherently “green infrastructure” without scrutinizing their construction and material footprint leads to incomplete environmental accounting. As cities build more and larger urban logistics facilities, integrating life cycle building assessment into freight planning is no longer optional; it’s essential.