Casa 47: Spain’s €13bn Plan to Add Tens of Thousands of Affordable Rentals — What Expats and Investors Must Know

Spain launches Casa 47: what it means for real estate Spain and renters

Spain has announced a major public housing push that could change the rules for renters, owners and investors in the real estate Spain market. The new vehicle, Casa 47, arrives with €13 billion of planned investment over 10 years, an initial transfer of more than 40,000 homes, and the ability to develop tens of thousands more. That scale matters: it is one of the largest state housing efforts in recent Spanish history.

I have covered housing programmes across Europe and I read this as ambitious but risky. Ambitious because of the money and volume involved; risky because delivering tens of thousands of homes, managing long-term contracts and integrating complicated eligibility rules is an administrative challenge. For buyers, lenders and expats, the scheme will shift supply and rules in certain cities and coastal areas where rental demand is strongest.

What is Casa 47?

Casa 47 is a new state-owned housing company created to develop, acquire and manage affordable rental housing across Spain. It replaces Sepes, the state land-management body that was created in 1981. The name refers to Article 47 of the Spanish Constitution, which guarantees the right to decent housing.

Key points about Casa 47:

• It will oversee land acquisition, construction, property purchase and tenant selection.
• The government has announced a €100 million public tender to buy properties from private sellers to seed the programme.
• Properties will remain in public ownership permanently under legal safeguards to prevent future privatisation.

Casa 47 is explicitly focused on long-term affordable rental housing rather than short-term subsidies. That means it is designed to add a permanent public housing stock that coexists with the private rental market.

How Casa 47 will work: contracts, tenure and management

Casa 47 will use long-term rental contracts that aim to offer tenant stability well beyond typical private leases. The structure is as follows:

• Initial contract term: 14 years.
• Renewal phase: automatic 7-year extensions, subject to continued eligibility.
• Maximum possible tenure: up to 75 years over the life of successive renewals.

Rents for Casa 47 homes are to be calculated under Spain’s State Housing Law framework, meaning they should not exceed 30% of household income. The rent calculation will take into account:

• Tenant’s declared income.
• Regional average salary.
• Local market conditions.

This approach is intended to provide predictable, long-term housing rather than short-term subsidy cycles. It also changes landlord-tenant dynamics in cities where short-term contracts and rising rents have created instability for tenants.

Who qualifies: income thresholds, residency and paperwork

Eligibility rules closely follow the State Housing Law and Spain’s income indicator system. The headline thresholds for 2025 are based on IPREM (Indicador Público de Renta de Efectos Múltiples):

• Minimum annual income: €16,800 (2 IPREM at €600/month).
• Maximum annual income: €63,000 (7.5 IPREM).

Additional asset-related criteria will apply, although officials have not yet published the full list.

Applicants will very likely need:

• A valid NIE (Foreigner Identification Number) if not a Spanish national.
• Legal residency status or a long-term permit for non-EU nationals.
• Registration on the local municipal register (empadronamiento).
• Proof of income declared in Spain in most cases.

Lower-income households that fall below the programme’s range may remain eligible for traditional social housing, while higher-income households will be expected to find accommodation on the private market.

What Casa 47 means for expats and foreign residents

Spain is home to millions of foreign residents, and the application rules have clear implications for them. The broad message is: foreigners can qualify if they meet residency, identification and tax requirements.

Who can apply:

• Spanish citizens.
• EU nationals legally resident in Spain.
• Non-EU nationals with valid long-term residency.

Documentation and tax issues:

• Applicants will need an NIE and empadronamiento.
• Most public housing schemes in Spain use taxable income declared in Spain to check eligibility. That means:
  • Expats working for Spanish employers, self-employed residents who declare income in Spain, and pensioners who declare pension income in Spain will be able to demonstrate qualifying income.
  • People who live in Spain but do not declare foreign earnings through the Spanish tax system may face difficulty.

Retirees and digital nomads:

• Retirees who declare their pension in Spain and fall within the income band can apply.
• Digital nomads may qualify if they are tax resident in Spain and meet the income criteria under IPREM thresholds.

Language and administration:

• The anticipated online application portal will likely operate mainly in Spanish. Expats should plan to get help from a gestor or relocation specialist when applying.

My view: the government wanted to make the scheme inclusive but is constrained by tax and residency rules that are used across public housing systems. Many expats will be eligible; some will find the paperwork and tax evidence the main hurdle.

Costs and rents: examples and the 30% rule

Under the programme, affordable rents should not exceed 30% of household income. Officials have provided illustrative rents in a handful of places to give applicants a sense of cost structure:

• Málaga: estimated rents of €680–€690 per month.
• Olivenza (Badajoz): rents could be around €400 per month, based on an average annual income of €25,000.

Rent levels will vary by region and local market conditions. In lower-demand areas, the state will ensure public rents do not exceed prevailing local prices.

For applicants this means:

• Expect rents to be heavily income-linked rather than strictly market-driven.
• Rent caps should make long-term budgeting easier for tenants who qualify.

For investors and landlords this means rental yields in some city submarkets may be under pressure if a significant Casa 47 presence develops there.