Valencia · 2.418 inhabitants · 999 buildings analysed one by one

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

We have scored the climate risk of the 999 buildings in Xeresa using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. The clearest change comes at night: from 61 to 94 tropical nights a year by 2050.

61→94tropical nights a year in a typical building, today and by 2050
35%of homes at high or very high wildfire risk by 2050
449homes 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

Xeresa compared with Spain

  • Tropical nights a year, 2050: 116 nights
    higher than 98 % of municipalities
  • Average summer maximum, 2050: 32,0 °C
    lower than 56 % of municipalities
  • Flood-prone area (100-year): 19,1%
    higher than 96 % of municipalities
  • Area burnt 2016-2026: 2,6%
    higher than 88 % of municipalities
  • Water stress 2050 (0-5): 5,0
    higher than 82 % 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 Xeresa

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

1

449 homes in a flood zone

449 homes

They are in the area that can flood once every 500 years according to the official maps (SNCZI); 368 of them are in the 100-year area. Next to Barranc de Xeresa, 289 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

From 61 to 94 tropical nights a year

61→94 nights

In a typical building in Xeresa, nights when the temperature stays at or above 20 °C would rise from 61 a year (1991-2020) to about 94 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

384 homes at very high wildfire risk

383 buildings

These are 383 buildings right next to vegetation that can burn. Of these, 3 are blocks of flats with 111 homes, where evacuation is harder.

  • Avinguda Caudeli: 75
  • Avinguda Castell de Bairen: 36

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

4

Where there are fewer trees, 2,1 °C hotter

2,1 °C

Around homes with between 5 and 10 % tree cover, the surface in summer is 0,5 °C above the median for Xeresa; with more than 40 % tree cover, 1,6 °C below. 0 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.

5

64 in every 100 buildings were built before 1980

64 %

They were built before the first thermal insulation standard (1979). With 94 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.

Six hazards

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

The 1.284 homes in Xeresa 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.
  • 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