Environmental recovery site in Granollers with a 1.1 ha constructed wetland providing tertiary treatment and water reuse for the city.
Can Cabanyes is an environmental recovery site in Granollers (Barcelona, Spain) that once was degraded but now functions as a natural habitat, recreation area, and core of the city's water reuse. A 1 ha constructed wetland acts as a tertiary treatment system for the Granollers wastewater treatment plant, using aquatic plants such as reeds and bulrushes to naturally filter wastewater while creating a thriving habitat popular for birdwatching and environmental education. An expansion project planned for 2026 will increase the natural area to roughly 8 hectares, adding stream restoration, a bioremediation stream, a second constructed wetland, and an associated flooded forest.
Socio-economic monitoring shows how people access, use, perceive, and engage with this showcase. It combines partner-uploaded social indicators with geo-based survey results where available.
Accessibility
Visitors
—
Sentiment
—
Survey responses
—
Well-being
—
Engagement
—
Percentage of the population within each travel-time band of wetlands. Updated 21 September 2026.
Within 5–10 min
1.2%
Within 15–30 min
32.7%
Within 45–60 min
11.5%
Within 90–120 min
10.7%
Positive, neutral and negative opinions about wetlands. September 2025 – September 2026. Based on the external social media platforms.
Per assessment point: anonymous aggregated mean scores for survey perception, physical well-being (S2B), and mental well-being (S2C). Individual responses are never shown.
Assessment points — Perception
| Code | Indicator | What it measures | Source | Frequency | Latest value | Status |
|---|---|---|---|---|---|---|
| S1A | Time accessibility | Percentage of the population within 5–10, 15–30, 45–60 and 90–120 minutes' travel time of wetlands | Accessibility analysis | 21 September 2026 | 5–10 min: 1.2% 15–30 min: 32.7% 45–60 min: 11.5% 90–120 min: 10.7% | Published |
| S1B | Wetland visitors | Number of visitors per year | Partner upload | Annual | — | Awaiting data |
| S1C | Users accessibility | Potential users per km² | Partner upload / External Data Analysis | Annual | — | Awaiting data |
| S2A | Sentiment Index | Percentage of positive, neutral and negative opinions about wetlands | Based on the external social media platforms | September 2025 – September 2026 | — | Data not available |
| S2B | Physical well-being survey | Self-reported physical well-being | Geo-based survey | Survey-based | — | Survey underway |
| S2C | Mental well-being survey | Self-reported mental well-being | Geo-based survey | Survey-based | — | Survey underway |
| S3A | Public involvement | Participation in wetland-related activities | Partner upload | Annual | — | Awaiting data |
| S3B | Virtual engagement | Online or digital engagement level | Partner upload | Annual | — | Awaiting data |
| S3C | Social contribution to science | Number or percentage of public contributions | Partner upload | Annual | — | Awaiting data |
Gallery
Images help communicate site context, monitoring activities, and nature-based solution interventions.
Constructed wetland at Can Cabanyes
Treatment cells with aquatic vegetation
Environmental recovery landscape
Water reuse and wetland infrastructure
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