Sant Joan Despi has a real estate market with specific pathologies depending on the age and type of its housing. Our team of chartered architects, technical architects & property lawyers (Hausum Legal) performs an independent technical & legal review with report in 24h.
INE municipal register, 1 January 2025
Sant Joan Despí has 35,926 inhabitants according to the INE municipal register at 1 January 2025.
Between 1996 and 2025, the population went from 26,805 to 35,926 inhabitants (+34.0%). Over the last ten years, from 2015 to 2025, it went from 33,264 to 35,926 (+8.0%).
Its highest figure in the series is 35,926 inhabitants (2025) and its lowest, 26,805 (1996).
| Year | Inhabitants |
|---|---|
| 2025 | 35,926 |
| 2024 | 35,083 |
| 2023 | 34,568 |
| 2022 | 34,039 |
| 2021 | 34,130 |
| 2020 | 34,267 |
| 2019 | 34,123 |
| 2018 | 34,084 |
| 2017 | 33,873 |
| 2016 | 33,502 |
| 2015 | 33,264 |
| 2014 | 32,981 |
| 2013 | 32,812 |
| 2012 | 32,792 |
| 2011 | 32,406 |
| 2010 | 32,338 |
| 2009 | 32,030 |
| 2008 | 31,647 |
| 2007 | 31,671 |
| 2006 | 31,485 |
| 2005 | 31,162 |
| 2004 | 30,242 |
| 2003 | 29,982 |
| 2002 | 29,064 |
| 2001 | 28,246 |
| 2000 | 27,627 |
| 1999 | 27,470 |
| 1998 | 27,338 |
| 1996 | 26,805 |
INE, official population figures (municipal register review) · Retrieved on 10/11/2026
Average appraised value of open-market housing, second quarter of 2026 (119 appraisals)
Average appraised value per quarter, in €/m².
MIVAU (Spanish Ministry of Housing), statistical bulletin, average appraised value of open-market housing (municipalities over 25,000 inhabitants) · Retrieved on 10/11/2026
What public bodies say about the municipal area. Each property may or may not be affected: that is checked with its address.
No stretch of the areas of potential significant flood risk (ARPSI) of the 2nd and 3rd cycle crosses the municipal area of Sant Joan Despí.
The absence of ARPSI does not rule out local flood-prone spots: those are checked with the address.
Municipality data, not your property
MITECO, Preliminary Flood Risk Assessment (EPRI), ARPSI 2nd and 3rd cycle · Retrieved on 10/11/2026
Between 2013 and 2022 the EGIF statistics record no wildfire of 1 ha or more in Sant Joan Despí.
Final data up to 2016; later years are provisional.
Municipality data, not your property
MITECO, General Wildfire Statistics (EGIF), via Civio “España en llamas” (CC BY-SA) · Retrieved on 10/11/2026
Sant Joan Despí appears in the list in appendix B of DB HS 6 as a radon potential zone I municipality.
Municipality data, not your property
Spanish Technical Building Code, DB HS 6, appendix B (RD 732/2019, BOE 27/12/2019) · Retrieved on 10/11/2026
The NCSE-02 standard assigns Sant Joan Despí a basic seismic acceleration of 0.04 g and a contribution coefficient K of 1.0.
Municipality data, not your property
Spanish Seismic-Resistant Construction Standard NCSE-02, annex 1 (RD 997/2002, BOE 11/10/2002) · Retrieved on 10/11/2026
Enter an address or a cadastral reference and instantly get the official floor area, the year built, an indicative valuation and the natural hazards map.
No link with promoters, real estate agents, or sellers. We only work for you.
Cada zona de Barcelona tiene sus propias patologías. Estas son las que detectamos más en Sant Joan Despí:
Suelos radiantes con fugas ocultas — en chalets de los años 2000 sin mantenimiento.
Cubiertas inclinadas con filtraciones — en chalets de los 80–90.
Instalaciones eléctricas en aluminio — en bloques de los años 70.
Sant Joan Despí fue un pueblo agrícola de la ribera del Llobregat hasta mediados del siglo XX. Del casco antiguo quedan casas entre medianeras y varias obras modernistas de Josep Maria Jujol, como la Torre de la Creu o Can Negre. Con la industria y la inmigración de los años 60 y 70 llegaron los bloques de pisos en barrios como Les Planes, y desde los 80 y 90 se sumaron zonas de casas unifamiliares y adosados y nuevas promociones de pisos.
Si compras en Sant Joan Despí, lo normal es un piso en un bloque de los 70–90 o una casa unifamiliar o un adosado más reciente. En los bloques, pregunta for la ITE, el ascensor y las obras de comunidad aprobadas, y fíjate en fachadas, balcones y bajantes. En casas y adosados, inspecciona sótanos, garajes y terrazas, porque en la llanura del río puede haber humedades. La inspección técnica comprueba estructura, instalaciones y aislamiento, y en las casas antiguas del centro, los forjados de madera y las humedades for capilaridad.
Centre — Casas de pueblo y edificios modernistas o de principios del siglo XX. Inspecciona forjados de madera, humedades y cubiertas, y qué obras permite la protección si está catalogado.
Les Planes — Bloques de pisos de los años 60 y 70. Comprueba la ITE, el ascensor, la instalación eléctrica, las bajantes y la cubierta plana.
Torreblanca — Zona residencial con bloques de pisos de distintas décadas. Inspecciona fachadas y balcones, aislamiento, instalaciones y las obras de comunidad aprobadas.
The process in Sant Joan Despí is simple and fast.
No fine print. No travel costs in Sant Joan Despí y área metropolitana.
Arquitectos Colegiados disponibles en Sant Joan Despí y todos los municipios del área metropolitana.
El inspector detectó la fuga del suelo radiante que habría sido muy costosa. Ahorramos mucho más de lo que costó la inspección.
Informe muy claro con fotos y coste aproximado de reparación de patologías. 100% Independent, sin relación con el vendedor ni la inmobiliaria.
Te enseñamos, paso a paso, qué inspeccionar cuando visitas una vivienda antes de comprarla.
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It depends on the type and age of the building, but the most common are outdated installations, damp and cracks in facades. A technical inspection detects them all before you buy.
From €345 for under 100 m². 100–199 m²: €395. 200–299 m²: €445. 300–399 m²: €495. VAT included, no travel costs.
Yes. It can be submitted as evidence in hidden-defect claims (art. 1484 Spanish Civil Code). The registered architect can testify as an expert witness. See legal service →
Between 1.5 and 3 hours depending on the size. The full report is delivered in under 24 hours.
The Hausum report goes far beyond a technical document.
Save money and avoid surprises. In under 24h you get an assigned architect and the full report.
Precio cerrado con VAT included · Sin gastos de desplazamiento · Informe en menos de 24h
Sant Joan Despí has 35,926 inhabitants according to the INE municipal register at 1 January 2025.
Yes. Over the last ten years it has gone from 33,264 to 35,926 inhabitants (+8.0%).
No stretch of the areas of potential significant flood risk (ARPSI) of the 2nd and 3rd cycle crosses the municipal area of Sant Joan Despí. Whether a specific property is in a flood-prone area depends on its location: it is checked with its address.
Sant Joan Despí appears in the list in appendix B of DB HS 6 as a radon potential zone I municipality.
The NCSE-02 standard assigns Sant Joan Despí a basic seismic acceleration of 0.04 g and a contribution coefficient K of 1.0.
Approximate straight-line distances.
Data loaded on 10/11/2026.
Municipality data. Not a technical report on any property.
Structured overview of municipal coverage, fixed rates by floor area, average property values and report turnaround in Sant Joan Despi (Barcelona).
Chartered architects covering all Barcelona districts, coastal towns and metropolitan areas.