Valencia · 3.143 inhabitants · 954 buildings analysed one by one

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

We have scored the climate risk of the 954 buildings in Miramar using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. The clearest change comes at night: from 69 to 101 tropical nights a year by 2050.

69→101tropical nights a year in a typical building, today and by 2050
55%of homes at high or very high flood risk by 2050
3.576homes 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

Miramar compared with Spain

  • Tropical nights a year, 2050: 120 nights
    higher than 99 % of municipalities
  • Average summer maximum, 2050: 31,5 °C
    lower than 62 % of municipalities
  • Flood-prone area (100-year): 4,7%
    higher than 81 % of municipalities
  • Area burnt 2016-2026: 0,0%
    lower than 64 % 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 Miramar

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

1

3.576 homes in a flood zone

3.576 homes

They are in the area that can flood once every 500 years according to the official maps (SNCZI); 2.403 of them are in the 100-year area. Next to Barranc de Sotaia, 687 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

3.256 homes less than 2 m above sea level

3.256 homes

That is 71 % of homes. The extreme sea level in a 100-year storm reaches 1,13 m today and 1,36 m by 2050.

Ground elevation at the building (IGN digital terrain model). Being low-lying does not mean it will flood: that depends on the beach, sea defences and drainage.

3

From 69 to 101 tropical nights a year

69→101 nights

In a typical building in Miramar, nights when the temperature stays at or above 20 °C would rise from 69 a year (1991-2020) to about 101 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).

4

254 homes at very high wildfire risk

120 buildings

These are 120 buildings right next to vegetation that can burn. Of these, one is a block of flats with 40 homes, where evacuation is harder.

  • Plaça del Nou d'Octubre: 40

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

5

49 in every 100 buildings were built before 1980

49 %

They were built before the first thermal insulation standard (1979). With 101 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 4.569 homes in Miramar 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.
  • Emergency self-protection plans in the schools, care homes and health centres that are in a flood zone.

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