Barcelona · 20.864 inhabitants · 2.517 buildings analysed one by one

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

We have scored the climate risk of the 2.517 buildings in Calella using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. The clearest change comes at night: from 33 to 72 tropical nights a year by 2050.

33→72tropical nights a year in a typical building, today and by 2050
10%of homes at high or very high wildfire risk by 2050
773homes less than 100 m from Riera de Calella
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

Calella compared with Spain

  • Tropical nights a year, 2050: 89 nights
    higher than 94 % of municipalities
  • Average summer maximum, 2050: 29,9 °C
    lower than 75 % of municipalities
  • Flood-prone area (100-year): 0,1%
    lower than 57 % of municipalities
  • Area burnt 2016-2026: 0,0%
    lower than 64 % of municipalities
  • Water stress 2050 (0-5): 4,9
    higher than 61 % 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 Calella

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

1

957 homes at very high wildfire risk

465 buildings

These are 465 buildings right next to vegetation that can burn. Of these, 13 are blocks of flats with 601 homes, where evacuation is harder.

  • Carrer del Puig de Popa: 581
  • carrer de Veracruz: 20

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

2

From 33 to 72 tropical nights a year

33→72 nights

In a typical building in Calella, nights when the temperature stays at or above 20 °C would rise from 33 a year (1991-2020) to about 72 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).

3

68 in every 100 buildings were built before 1980

68 %

They were built before the first thermal insulation standard (1979). With 72 tropical nights a year by 2050, they will hold the most heat at night and have the most to gain from a retrofit.

Year of construction from the Cadastre.

4

Riera de Calella: 378 homes less than 50 m away, with no official map

378 homes

Along Riera de Calella (4,3 km within the municipality, dry most of the year) there is no official mapped flood zone, but there are 378 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.

Six hazards

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

The 9.772 homes in Calella 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 1 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.
  • Download the tables by area, neighbourhood, street and watercourse (Data tab) to cross-check them with urban planning.

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