Barcelona · 233.270 inhabitants · 25.592 buildings analysed one by one

TerrassaClimate risk in its neighbourhoods, streets and rivers, today and in 2050

We have scored the climate risk of the 25.592 buildings in Terrassa using Cadastre data, satellite imagery and climate projections, and added it up by area, neighbourhood, street and watercourse. The clearest change comes at night: from 10 to 49 tropical nights a year by 2050.

10→49tropical nights a year in a typical building, today and by 2050
3%of homes at high or very high wildfire risk by 2050
60homes in the official flood zone (500 years)
At a glance

Where the risk lies by 2050

LowMediumHighVery highRivers and streams

Level of the highest hazard in each 250 m area by 2050: flooding, heat, wildfire, wind or ground movement.

Tropical nights a year in a typical building

Terrassa compared with Spain

  • Tropical nights a year, 2050: 55 nights
    higher than 81 % of municipalities
  • Average summer maximum, 2050: 31,2 °C
    lower than 65 % of municipalities
  • Flood-prone area (100-year): 0,0%
    lower than 80 % of municipalities
  • Area burnt 2016-2026: 0,0%
    lower than 64 % of municipalities
  • Water stress 2050 (0-5): 3,5
    lower than 76 % of municipalities

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 →

What stands out

What we found in Terrassa

It comes from matching each building with its neighbourhood, its street, the nearest watercourse and its surroundings.

1

Where there are fewer trees, 5,2 °C hotter

5,2 °C

Around homes with less than 2 % tree cover, the surface in summer is 0,6 °C above the median for Terrassa; with more than 40 % tree cover, 4,6 °C below. 25.028 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.

2

2.941 homes at very high wildfire risk

1.974 buildings

These are 1.974 buildings right next to vegetation that can burn. Of these, 16 are blocks of flats with 994 homes, where evacuation is harder.

  • Carrer del País Basc: 346
  • Carretera de Rellinars: 186
  • Carrer de Guipúscoa: 111
  • Carrer de Joaquim Vayreda: 108

Proximity to woodland and to burnt areas (ESA WorldCover, EFFIS). It does not measure the state of the vegetation or any firebreaks.

3

From 10 to 49 tropical nights a year

10→49 nights

In a typical building in Terrassa, nights when the temperature stays at or above 20 °C would rise from 10 a year (1991-2020) to about 49 by 2050. For this reason, 95 % of homes would be at a high or very high level.

Median of the buildings. Intermediate-to-high emissions scenario (SSP3-7.0).

4

16 schools in heat islands

16 of 62

Schools whose surroundings are at least 1 °C hotter than the municipal median in summer. They are the first candidates for shade and tree-lined playgrounds.

Ground surface temperature (Landsat) around the building closest to the OpenStreetMap point.

5

A difference of 24 tropical nights between neighbourhoods

57Guadalhorce
vs
33Can Palet de Vista Alegre

By 2050, Guadalhorce would have about 57 tropical nights a year and Can Palet de Vista Alegre, 33. Altitude, closeness to the sea or a river, and trees make a big difference to heat within the same municipality.

Average of the buildings in each neighbourhood (OpenStreetMap).

Six hazards

How many homes are at high risk, today and in 2050

The 99.191 homes in Terrassa by the level of their building. Tap a hazard to see it on the map.

LowMediumHighVery high
What can be done

For the town council and for residents

For the town council and its technical staff

  • Climate shelters, and late-afternoon and evening opening hours at libraries and community centres in the areas with the most tropical nights.
  • Shade and trees in the playgrounds of the 16 schools with the hottest surroundings.
  • Review with the river basin authority the watercourses with no official mapping that run next to homes, and keep them clear.
  • Firebreaks and evacuation routes in the streets that border woodland.
  • Monitoring of ground movement in Can Parellada: cracks, water mains and buildings.

For residents

  • Air your home in the early hours, shade west-facing walls from the sun and ask about grants to insulate the roof.
  • If you live on a ground floor or have a garage next to a watercourse, have a plan: where to go upstairs, what to switch off and how to hear about warnings.
  • Keep the strip around your house clear of dry vegetation and know both ways out of your street.
  • Look up your building: the free report gives its level for each hazard, and the Climate Note gives the full detail.

Look up your building