Barcelona – greywater recycling to be made madatory in new buildings in 2025

Barcelona is set to implement a regulation requiring new buildings and major renovations to incorporate greywater recycling systems. This initiative involves repurposing water from showers and bathtubs for flushing toilets and irrigating communal areas. Anticipated to be approved by spring 2025, the measure aims to reduce household water consumption by up to one-third, translating to an annual saving of approximately €185 per household. The city projects an overall conservation of 136,000 cubic meters of water annually.

This policy positions Barcelona as the first major Spanish city to adopt such a measure, reflecting its commitment to enhancing climate resilience.

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Photo by Logan Armstrong on Unsplash