Key Findings: Rent Burden for Shared Housing Crosses the 30% Threshold
A recent report from the real estate portal Pisos.com indicates that the cost of flat-sharing in Spain is placing a heavy financial burden on young people. The data shows that the national average monthly rent for a single room in a shared flat is €475.98, which accounts for approximately 19.34% of the national average gross salary.
However, when measured against a more realistic disposable income—the net salary after taxes—this ratio sharply increases to nearly one-third. This means a significant portion of a young person’s take-home pay is already allocated to rent. The head of the study, Ferran Font, explains that the current crisis is the result of three converging factors: continuously rising rents, the generally low wage levels and unstable job contracts for young people, and a growing shortage of available rental properties on the market. These factors combined mean that flat-sharing is no longer a cheap option.
High-Pressure Cities: Valencia and Barcelona Face Different Struggles

The report details several cities where the rental pressure is most significant, with Valencia, Palma, and Barcelona being particularly notable.
- Valencia: With an average monthly rent of €616.74, it consumes 27.60% of the local average gross salary (€26,817 annually), placing it among the highest-burden cities. Its core problem is the combination of relatively low wages and high rents, creating a double bind of earning less while facing unaffordable housing.
- Barcelona: Boasts the most expensive shared rooms in the country, with an average monthly rent of €646. Although its average salary is higher (€31,730 annually), and the rent-to-gross-income ratio is 24.43%, the absolute high cost of rent still overwhelms young people, making it a classic case of being “too expensive to live.”
- Palma de Mallorca: The average monthly rent is €617.31, accounting for 25.48% of the gross salary, similarly facing a situation of high rents and limited income.
- Santa Cruz de Tenerife: The rent-to-gross-income ratio is 24.08%, and due to lower income levels, the housing burden is also severe.
The Buffer and Exception in High-Wage Cities
In contrast, the situation in some high-wage cities is slightly more optimistic, though pressure still exists. The capital, Madrid, has an average monthly rent for a shared room of €622.14, second only to Barcelona. However, thanks to its higher average salary level (€34,410 annually), the rent-to-gross-income ratio drops to 21.70%, with high wages partially buffering the impact of high rents.
The report’s sole outlier is San Sebastián. This city has the highest average salary in all of Spain (€35,170 annually), while the average monthly rent for a shared room is €546.80. Its rent-to-gross-income ratio is only 18.66%, making it the most cost-effective city in the survey.
Expert Warning: Actual Pressure on Youth Likely Underestimated
Experts specifically point out that the study uses average salary data for all age groups in its calculations. Considering that the actual income of Spain’s youth is typically lower than the societal average, the real rental pressure they endure is likely even higher than the data presented in the report. As rent increases continue to outpace wage growth, flat-sharing, once seen as a starting point for independent living, is now rapidly becoming a “luxury choice.” This undoubtedly poses a severe challenge to the “dream of affordable housing” for young people in Spain.