San Sebastian De Los Reyes 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
San Sebastián de los Reyes has 96,992 inhabitants according to the INE municipal register at 1 January 2025.
Between 1996 and 2025, the population went from 57,632 to 96,992 inhabitants (+68.3%). Over the last ten years, from 2015 to 2025, it went from 84,944 to 96,992 (+14.2%).
Its highest figure in the series is 96,992 inhabitants (2025) and its lowest, 57,632 (1996).
| Year | Inhabitants |
|---|---|
| 2025 | 96,992 |
| 2024 | 94,969 |
| 2023 | 92,734 |
| 2022 | 91,083 |
| 2021 | 90,962 |
| 2020 | 91,224 |
| 2019 | 89,276 |
| 2018 | 87,724 |
| 2017 | 86,707 |
| 2016 | 86,206 |
| 2015 | 84,944 |
| 2014 | 83,329 |
| 2013 | 82,090 |
| 2012 | 81,466 |
| 2011 | 79,825 |
| 2010 | 78,157 |
| 2009 | 75,912 |
| 2008 | 72,414 |
| 2007 | 68,740 |
| 2006 | 67,351 |
| 2005 | 65,767 |
| 2004 | 62,242 |
| 2003 | 61,583 |
| 2002 | 60,323 |
| 2001 | 59,646 |
| 2000 | 58,389 |
| 1999 | 58,215 |
| 1998 | 57,791 |
| 1996 | 57,632 |
INE, official population figures (municipal register review) · Retrieved on 10/11/2026
Average appraised value of open-market housing, second quarter of 2026 (262 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.
The municipal area of San Sebastián de los Reyes is crossed by stretches of 2 areas of potential significant flood risk (ARPSI).
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 5 fires of 1 ha or more in San Sebastián de los Reyes, with 16.1 ha burnt in total. The largest, 5.0 ha, was in 2015.
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
San Sebastián de los Reyes 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
San Sebastián de los Reyes does not appear in annex 1 of NCSE-02, which lists the municipalities with a basic seismic acceleration of 0.04 g or more.
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 Madrid tiene sus propias patologías. Estas son las que detectamos más en San Sebastián de los Reyes:
Fachadas de ladrillo cara vista con juntas deterioradas — en bloques de los 80.
Cubiertas planas sin mantenimiento — en edificios de los 90 sin mantenimiento de impermeabilización.
Sistemas de calefacción central obsoletos — en comunidades sin renovar en más de 20 años.
San Sebastián de los Reyes conserva un pequeño Casco Antiguo, conocido for los encierros de sus fiestas, con casas bajas y edificios de pocas plantas. Desde los años 70 el municipio creció con bloques de pisos de ladrillo cara vista alrededor del centro y, en los 90 y a principios de este siglo, con nuevos barrios residenciales como Tempranales, de bloques con zonas comunes y piscina. Al norte, junto a la A-1, se extienden urbanizaciones de chalets en parcelas amplias como Fuente del Fresno o Ciudalcampo.
En los bloques de los 70–90, fíjate en la fachada de ladrillo (juntas, fisuras, anclajes de los balcones) y pregunta for la ITE, la renovación de la calefacción central y las derramas aprobadas. En las promociones más recientes, inspecciona los garajes, las terrazas y las zonas comunes. Si buscas un chalet en una urbanización, la inspección técnica comprueba la cubierta, la estructura, las humedades en sótanos, la piscina y las instalaciones, y conviene confirmar que las ampliaciones (porches, buhardillas, cerramientos) tienen licencia y constan en el Catastro.
Casco Antiguo — Casas bajas y edificios de pocas plantas, muchos reformados. Inspecciona humedades en muros, cubiertas y el estado de las instalaciones tras las reformas.
Tempranales — Barrio de principios de este siglo con bloques, zonas comunes y piscina. Comprueba garajes, terrazas, carpintería exterior y la calidad de los acabados.
Ciudalcampo — Urbanización de chalets en parcelas amplias, de distintas épocas. Inspecciona cubiertas, piscina, muros de contención, saneamiento y la legalidad de las ampliaciones.
The process in San Sebastián de los Reyes is simple and fast.
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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
San Sebastián de los Reyes has 96,992 inhabitants according to the INE municipal register at 1 January 2025.
Yes. Over the last ten years it has gone from 84,944 to 96,992 inhabitants (+14.2%).
The municipal area of San Sebastián de los Reyes is crossed by 2 stretches of the area of potential significant flood risk (ARPSI) “ES030-11-04.1” (river basin district: Tajo). Whether a specific property is in a flood-prone area depends on its location: it is checked with its address.
San Sebastián de los Reyes appears in the list in appendix B of DB HS 6 as a radon potential zone I municipality.
San Sebastián de los Reyes does not appear in annex 1 of NCSE-02, which lists the municipalities with a basic seismic acceleration of 0.04 g or more.
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 San Sebastian De Los Reyes (Madrid).
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