{"id":29503,"date":"2025-10-14T12:32:04","date_gmt":"2025-10-14T12:32:04","guid":{"rendered":"https:\/\/cit.upc.edu\/portfolio-item\/un-mapa-interactiu-per-identificar-i-avaluar-la-vulnerabilitat-dels-habitatges-de-barcelona-a-la-calor-extrema\/"},"modified":"2025-10-14T14:27:50","modified_gmt":"2025-10-14T14:27:50","slug":"an-interactive-map-to-identify-and-assess-the-vulnerability-of-barcelonas-housing-to-extreme-heat","status":"publish","type":"portfolio","link":"https:\/\/cit.upc.edu\/en\/portfolio-item\/an-interactive-map-to-identify-and-assess-the-vulnerability-of-barcelonas-housing-to-extreme-heat\/","title":{"rendered":"An interactive map to identify and assess the vulnerability of Barcelona\u2019s housing to extreme heat"},"content":{"rendered":"\n

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14\/10\/2025
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The Architecture, Energy and Environment (AiEM) research group at the Universitat Polit\u00e8cnica de Catalunya – BarcelonaTech (UPC) has characterised Barcelona\u2019s residential buildings according to their capacity to adapt to climate change. This study is part of the project \u2018VeUvE: Urban havens for vulnerable zones\u2019.The work highlights the climate inequality conditions present across different areas of the city and will help to better define the priorities and energy renovation strategies for its districts.<\/h4>
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The characterisation of the buildings was carried out using three variables derived from public cadastral data: urban fabric compactness, potential for cross ventilation in buildings, and the presence of thermal insulation in fa\u00e7ades and roofs. These factors made it possible to identify the availability of passive cooling strategies in constructions, with the aim of improving thermal comfort in homes without increasing energy consumption.

The study resulted in the creation of an interactive map<\/a> that identifies the specific characteristics of each district of the city in relation to its capacity to adapt to climate change. Specifically, the analysis shows that adaptation conditions vary according to the urban morphology and building history of Barcelona\u2019s different districts.

Older, compact neighbourhoods such as Ciutat Vella or Vila de Gr\u00e0cia have a low potential for cross ventilation, whereas buildings in the central Eixample area or in zones close to Collserola show a greater ventilation potential, which facilitates adaptation to extreme heat situations. In contrast, areas developed during the post-war period tend to feature buildings without insulation and with limited potential for natural ventilation.

Regarding thermal insulation, only 15% of the city\u2019s building stock has it, concentrated mainly in the districts of Sarri\u00e0 and Sant Mart\u00ed. This feature, combined with a higher potential for cross ventilation, enhances adaptation to extreme climate scenarios.

As part of the VeUvE project, an interactive map has also been created to graphically represent the different categories of nearly 600 climate shelters within Barcelona\u2019s municipal network, as well as their proximity to housing. Overall, 46% of the city\u2019s dwellings are located within a five-minute walk of a climate shelter \u2014 a first step towards achieving the 100% coverage target set out in the Climate Emergency Action Plan.

Of these shelters, 45% are natural spaces, 35% are free-access air-conditioned spaces, and the remaining 20% are commercial or paid-access air-conditioned spaces. The study notes that the restricted opening hours of some shelters reduce the network\u2019s effectiveness, especially on Sundays and during August, when approximately one-third of shelters are unavailable.

In terms of spatial distribution, the districts of Sants-Montju\u00efc and Sant Mart\u00ed have the largest number of natural climate shelters, due to urban projects carried out over the past thirty years. By contrast, Ciutat Vella lacks natural spaces but compensates with a large number of air-conditioned public facilities. The district with the fewest climate shelters is Gr\u00e0cia.

Impact<\/h4>

The conclusions of this analysis, which could be applied to other cities, will help to better define the priorities and strategic actions for energy renovation in districts and their buildings. In fact, the study provides useful tools for guiding medium- and long-term urban planning, and suggests an approach focused on people\u2019s well-being and comfort in the design of urban regeneration measures.

In this regard, the interactive maps provide access to data such as the cross-ventilation potential of dwellings, proximity to climate shelters (such as parks, libraries, and sports centres), climate vulnerability, and the availability of passive cooling strategies in homes. As for the climate shelter network, the tool includes all shelters in Barcelona, as well as information on proximity to shelters open in August and on Sundays.

Budget and Funding<\/h4>

The project \u2018VeUvE: Urban havens for vulnerable zones\u2019 is funded by the Spanish Ministry of Science and Innovation through the State Plan for Scientific, Technical and Innovation Research 2017\u20132020, with a total budget of \u20ac170,731. The project has a duration of four years and four months (September 2021 \u2013 December 2025).
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Technology<\/h5>

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The Architecture, Energy and Environment (AiEM) research group at the Universitat Polit\u00e8cnica de Catalunya – BarcelonaTech (UPC) has characterised Barcelona\u2019s residential buildings according to their capacity to adapt to climate change. This study is part of the project \u2018VeUvE: Urban havens for vulnerable zones\u2019.
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