Navarre · 672 inhabitants · 302 buildings analysed one by one

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

We have scored the climate risk of the 302 buildings in Sunbilla using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. Water is the biggest factor: 133 homes are in a flood zone.

1→5tropical nights a year in a typical building, today and by 2050
99%of homes at high or very high wildfire risk by 2050
133homes 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

Sunbilla compared with Spain

  • Tropical nights a year, 2050: 4 nights
    lower than 56 % of municipalities
  • Average summer maximum, 2050: 25,9 °C
    lower than 91 % of municipalities
  • Flood-prone area (100-year): 3,0%
    higher than 73 % of municipalities
  • Area burnt 2016-2026: 4,4%
    higher than 90 % of municipalities
  • Water stress 2050 (0-5): 2,5
    lower than 89 % 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 Sunbilla

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

1

133 homes in a flood zone

133 homes

They are in the area that can flood once every 500 years according to the official maps (SNCZI); 85 of them are in the 100-year area. Next to Bidasoa ibaia, 71 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.

2

381 homes at very high wildfire risk

299 buildings

These are 299 buildings right next to vegetation that can burn. Of these, one is a block of flats with 36 homes, where evacuation is harder.

  • Arbizti kalea: 36

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

3

From 1 to 5 tropical nights a year

1→5 nights

In a typical building in Sunbilla, nights when the temperature stays at or above 20 °C would rise from 1 a year (1991-2020) to about 5 by 2050. For this reason, 0 % of homes would be at a high or very high level.

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

4

2 schools in heat islands

2 of 2

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.

Six hazards

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

The 384 homes in Sunbilla 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

  • Shade and trees in the playgrounds of the 2 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

  • 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