The Myth and Reality of Spain's Empty Homes: Insights from Viviendómetro

Spain’s housing crisis is a prominent political and social issue, frequently dominating headlines with debates over rising rents and lack of inventory. Amidst the noise, Viviendómetro has emerged as an objective, data-driven platform designed to bypass the rhetoric and present the actual numbers behind the country’s housing shortage.

By pulling verified data from institutions like the Spanish National Statistics Institute (INE) and the Bank of Spain, the site reveals a stark truth: Spain is missing about 750,000 homes (2021-2025 data), with a deficit growing by 275,000 every year. That’s roughly one missing home every two minutes.

Breaking Down Spain’s 26.6 Million Homes

A common public perception is that tourist rentals (Viviendas de Uso Turístico or VUTs) are the primary culprit for the lack of available housing. However, Viviendómetro’s breakdown of Spain’s 26.6 million registered properties tells a very different story:

Housing Type	Share	Total Number	Key Insight
Primary Residences	68.3%	~18.17 Million	Homes actively lived in by local households.
Secondary Residences	16.0%	~4.26 Million	Used as vacation homes or weekend getaways by Spaniards.
Empty Homes (Vacías)	14.4%	~3.80 Million	Largely concentrated in rural, depopulated areas.
Tourist Rentals	1.28%	341,001	A highly debated segment, but statistically tiny overall.

The data reveals that there are 11 times more empty homes than tourist rentals in Spain. More importantly, these empty homes are rarely located where the housing crisis is most severe.

According to the 2021 Census data highlighted by the site, 45% of empty houses are located in municipalities with fewer than 10,000 inhabitants. For instance, in the rural province of Ourense, 4 out of every 10 houses are empty. In stark contrast, in highly demanded areas like Madrid, fewer than 1 in 10 homes sit vacant. The “empty home” phenomenon is largely a symptom of rural depopulation (La España Vaciada), not urban real estate hoarding.

The Root Cause: Two Curves That Never Cross

If tourist apartments are only a fraction of the market, why can’t people afford housing? Viviendómetro points to a severe imbalance in fundamental supply and demand:

• Demand: Approximately 240,000 new households are formed in Spain every year (through emancipation, immigration, and family formation).
• Supply: Only about 92,000 new homes are completed annually.

Spain is currently building less than half of the housing it needs to keep up with demographic growth, and this structural deficit has persisted for over a decade. The contrast with historical data is dramatic: during the construction peak in 2006, Spain issued over 865,000 building permits in a single year. After the 2008 financial crash, construction plummeted, hitting a low of just 34,288 permits in 2013, and it has never recovered to meet baseline population needs.

The Takeaway

Viviendómetro’s data project serves as a crucial reality check. While regulating short-term tourist rentals may have localized impacts in specific saturated neighborhoods, it will not solve the macroeconomic shortage. The numbers show that the core of the problem isn’t that homes are being hoarded by tourists or left empty in bustling capitals. It’s that Spain simply isn’t building enough homes where its citizens want to live and work.