We have scored the climate risk of the 2.779 buildings in La Roca del Vallès using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. The clearest change comes at night: from 14 to 54 tropical nights a year by 2050.
Level of the highest hazard in each 250 m area by 2050: flooding, heat, wildfire, wind or ground movement.
Position among the 8.217 municipalities: further right means more risk. These are figures for the municipality as a whole, the same for everyone; they may differ from those for the typical building. Compare with others →
It comes from matching each building with its neighbourhood, its street, the nearest watercourse and its surroundings.
They are in the area that can flood once every 500 years according to the official maps (SNCZI); 67 of them are in the 100-year area. Next to Riu Mogent, 2 homes are inside the flood zone, less than 100 m from the watercourse.
According to the Ministry’s studies, this is an annual probability of 0,2 % (500 years) or 1 % (100 years), not “once every 500 years”: it can happen two years in a row. Small gullies are not always mapped.
Around homes with less than 2 % tree cover, the surface in summer is 1,0 °C above the median for La Roca del Vallès; with more than 40 % tree cover, 3,7 °C below. 41 homes are in surroundings with almost no trees.
Ground surface temperature (Landsat), not air temperature. More trees usually go with less asphalt and lower density: this is a correlation, not a measure of the effect of planting trees.
In a typical building in La Roca del Vallès, nights when the temperature stays at or above 20 °C would rise from 14 a year (1991-2020) to about 54 by 2050. For this reason, 100 % of homes would be at a high or very high level.
Median of the buildings. Intermediate-to-high emissions scenario (SSP3-7.0).
These are 1.029 buildings right next to vegetation that can burn. Of these, 2 are blocks of flats with 47 homes, where evacuation is harder.
Proximity to woodland and to burnt areas (ESA WorldCover, EFFIS). It does not measure the state of the vegetation or any firebreaks.
Along Torrent de Valldoriolf (3,5 km within the municipality, dry most of the year) there is no official mapped flood zone, but there are 64 homes less than 50 m from the watercourse.
Having no official map does not mean it cannot overflow: watercourses that are dry most of the year are the ones that cause the most surprises in a storm.
The 4.499 homes in La Roca del Vallès by the level of their building. Tap a hazard to see it on the map.
The same data for all 8.217 municipalities in Spain. Choose what to compare with: municipalities of a similar size, the province, the region or the whole of Spain.
Compared with the 893 municipalities with between 5.000 and 20.000 inhabitants. The bar shows where La Roca del Vallès stands: further right means more risk.
| Indicator | La Roca del Vallès | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 12 nights | 10 nights | higher than 53 % of them |
| Tropical nights a year, 2050 | 68 nights | 48 nights | higher than 72 % of them |
| Average summer maximum, 2050 | 30,4 °C | 32,4 °C | lower than 67 % of them |
| Night-time heat island | −0,2 °C | 0,4 °C | lower than 92 % of them |
| Flood-prone area (100-year) | 0,0% | 1,2% | lower than 85 % of them |
| Area burnt 2016-2026 | 0,0% | 0,0% | lower than 67 % of them |
| Water stress 2050 (0-5) | 4,9 | 4,8 | higher than 54 % of them |
| Maximum 50-year gust | 26 m/s | 30 m/s | lower than 84 % of them |
| Ground movement | −0,8 mm/yr | −0,6 mm/yr | sinking faster than 61 % of them |
| Population aged 65 or over | 18% | 20% | lower than 66 % of them |
Compared with the 311 municipalities in Barcelona province. The bar shows where La Roca del Vallès stands: further right means more risk.
| Indicator | La Roca del Vallès | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 12 nights | 2 nights | higher than 72 % of them |
| Tropical nights a year, 2050 | 68 nights | 46 nights | higher than 72 % of them |
| Average summer maximum, 2050 | 30,4 °C | 30,9 °C | lower than 64 % of them |
| Night-time heat island | −0,2 °C | 0,3 °C | lower than 87 % of them |
| Flood-prone area (100-year) | 0,0% | 0,0% | lower than 72 % of them |
| Area burnt 2016-2026 | 0,0% | 0,0% | lower than 57 % of them |
| Water stress 2050 (0-5) | 4,9 | 4,1 | higher than 78 % of them |
| Maximum 50-year gust | 26 m/s | 27 m/s | lower than 59 % of them |
| Ground movement | −0,8 mm/yr | −0,4 mm/yr | sinking faster than 79 % of them |
| Population aged 65 or over | 18% | 20% | lower than 68 % of them |
Compared with the 948 municipalities in Catalonia. The bar shows where La Roca del Vallès stands: further right means more risk.
| Indicator | La Roca del Vallès | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 12 nights | 5 nights | higher than 70 % of them |
| Tropical nights a year, 2050 | 68 nights | 51 nights | higher than 74 % of them |
| Average summer maximum, 2050 | 30,4 °C | 31,7 °C | lower than 74 % of them |
| Night-time heat island | −0,2 °C | 0,2 °C | lower than 81 % of them |
| Flood-prone area (100-year) | 0,0% | 0,2% | lower than 77 % of them |
| Area burnt 2016-2026 | 0,0% | 0,0% | lower than 59 % of them |
| Water stress 2050 (0-5) | 4,9 | 4,4 | higher than 82 % of them |
| Maximum 50-year gust | 26 m/s | 27 m/s | lower than 68 % of them |
| Ground movement | −0,8 mm/yr | −0,3 mm/yr | sinking faster than 83 % of them |
| Population aged 65 or over | 18% | 22% | lower than 81 % of them |
Compared with the 8.217 municipalities in Spain. The bar shows where La Roca del Vallès stands: further right means more risk.
| Indicator | La Roca del Vallès | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 12 nights | 0 nights | higher than 79 % of them |
| Tropical nights a year, 2050 | 68 nights | 8 nights | higher than 89 % of them |
| Average summer maximum, 2050 | 30,4 °C | 32,4 °C | lower than 72 % of them |
| Night-time heat island | −0,2 °C | 0,1 °C | lower than 75 % of them |
| Flood-prone area (100-year) | 0,0% | 0,6% | lower than 80 % of them |
| Area burnt 2016-2026 | 0,0% | 0,0% | lower than 64 % of them |
| Water stress 2050 (0-5) | 4,9 | 4,6 | higher than 61 % of them |
| Maximum 50-year gust | 26 m/s | 31 m/s | lower than 88 % of them |
| Ground movement | −0,8 mm/yr | −0,4 mm/yr | sinking faster than 70 % of them |
| Population aged 65 or over | 18% | 28% | lower than 89 % of them |
Values for the municipality as a whole (median over built-up land). The position is the percentage of municipalities in the group with a lower value: it is not a probability of damage. 2050 = SSP3-7.0 scenario.
Semicolon-separated tables with a decimal comma, ready to open in a spreadsheet or a GIS (areas include longitude and latitude).
What this is and what it is not. It is a guide-only analysis made with public data and models, with the same rules for every municipality. It does not replace official maps, a technical study or emergency plans. For your own building, look up its report.
Building by building. We have scored the 2.779 Cadastre buildings in La Roca del Vallès with the same rules as each building’s report on Mi Riesgo Climático, from 0 to 100 for each hazard: low (up to 25), medium (up to 50), high (up to 75) and very high.
Aggregates only. To protect each owner, no individual building appears here: only 250 m areas with at least 3 buildings, and neighbourhoods and streets with at least 60 homes.
Wildfire and flooding. Wildfire counts proximity to woodland or scrubland of at least 100 ha (not urban parks or tree-lined streets). For flooding, besides the official flood zones, a building that was inside a real flood observed by satellite (Copernicus EMS, such as the 2024 DANA storm) is at least at high level.
2050. Average for 2041-2070 under an intermediate-to-high emissions scenario (SSP3-7.0). Tropical nights and heat change with the climate; flooding, wildfire, wind and ground movement are shown with current data when there is no projection.
Rivers and streams. Named watercourses from OpenStreetMap. We count the homes less than 50 and 100 m from the watercourse and, separately, how many of them are in an official flood zone (SNCZI). Being close does not mean they will flood, and having no official zone does not mean they cannot.
Neighbourhoods and streets. Neighbourhoods and districts from OpenStreetMap; streets according to the Cadastre address. The street heat index combines tropical nights in 2050 (35 %), heat island (30 %), lack of trees (20 %) and buildings from before 1980 (15 %).
Sources. Cadastre (buildings and addresses); ERA5 + CHELSA/CMIP6 MPI-ESM1-2-HR and AdapteCCa (tropical nights and temperature); Landsat 8/9 and MODIS (heat island); ESA WorldCover and EFFIS (wildfire); MITECO SNCZI (flood zones); JRC (coast); ERA5 + Global Wind Atlas (wind); Copernicus EGMS (ground movement); WRI Aqueduct (water); INE (population); OpenStreetMap, © contributors, ODbL (streets, neighbourhoods, rivers and facilities).