Barcelona · 231.542 inhabitants · 14.499 buildings analysed one by one

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

We have scored the climate risk of the 14.499 buildings in Badalona 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 54 to 91 tropical nights a year by 2050.

54→91tropical nights a year in a typical building, today and by 2050
29,7°Caverage maximum in the warmest month by 2050 (today, 26,2 °C)
961homes less than 100 m from Riera de Pomar
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

Badalona compared with Spain

  • Tropical nights a year, 2050: 107 nights
    higher than 97 % of municipalities
  • Average summer maximum, 2050: 29,7 °C
    lower than 76 % of municipalities
  • Flood-prone area (100-year): 0,2%
    lower than 55 % 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 Badalona

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

1

From 54 to 91 tropical nights a year

54→91 nights

In a typical building in Badalona, nights when the temperature stays at or above 20 °C would rise from 54 a year (1991-2020) to about 91 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).

2

80 in every 100 buildings were built before 1980

80 %

They were built before the first thermal insulation standard (1979). With 91 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.

3

20 schools in heat islands

20 of 93

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.

4

417 homes at very high wildfire risk

419 buildings

These are 419 buildings right next to vegetation that can burn. Almost all are houses (413), on the edges of the town and in housing estates.

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

5

A difference of 17 tropical nights between neighbourhoods

100Sant Antoni de Llefià
vs
83Bonavista

By 2050, Sant Antoni de Llefià would have about 100 tropical nights a year and Bonavista, 83. 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 90.283 homes in Badalona 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 20 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