Every major Spanish party is running on a housing plan ahead of the November 29 election. The evidence on what actually expands supply points to one answer almost none of them will fund at the scale it needs.
On October 2, 2026, Spain's Congress rejected the government's two emergency housing decrees: a two-year extension on expiring leases, an eviction freeze for vulnerable households through 2030, a 2% cap on annual rent rises, and a ban on fund purchases of large housing blocks. The PP, Vox and Junts voted them down, with several smaller regional parties joining them. Four days later, the government approved a near-identical pair of decrees and routed them around Congress entirely, through the Diputación Permanente, the body that handles legislative business between sessions. The Basque Nationalist Party, PNV, had already said it would give "critical support" to the first decree there, which gave the government the votes it needed without Junts. Alongside the new decrees, Pedro Sánchez announced "Tu Casa," a 10 billion euro fund offering first-time buyers a zero-interest, state-backed loan of up to 50,000 euros toward a down payment, repaid over ten years through the state lender ICO. The jurist Diego Fierro Rodríguez, writing in Lawandtrends, called the maneuver a fraud on the Constitution: "legal en la forma y fraudulenta en el fondo," legal in form and fraudulent in substance, since calling an election does not retroactively create the urgency a decree needs, and the Diputación Permanente route exists to handle pending business, not to resurrect a text the full chamber had just denied.
That sequence is the pattern in miniature. Spain keeps producing housing measures, and keeps fighting over the right emergency lever to pull. What no government has done in the last twenty years is pay for the one thing that reliably closes a housing gap: building enough public housing to matter, and clearing the regulatory backlog that keeps most private construction stuck on paper for a decade or more.
Where the shortage actually sits
Spain has roughly 255 million square metres of land already zoned for development, enough for about 1.8 million homes over the next three decades. That comes from a 2025 report by OBS Business School, led by professor Carlos Balado García and updated this past May. The land is not the obstacle. The same report puts ordinary development timelines at ten to fifteen years, sometimes twenty, counting from zoning to an occupied building. One piece of that timeline has its own price tag: a study by the developers' association ASPRIMA and EY Abogados, covering ten Spanish municipalities, found that the construction-licence stage alone averages twelve months, against a legal maximum of three. In Majadahonda, on Madrid's outskirts, the wait averaged sixteen months and added 39,003 euros to the price of an average home there, 10.6% of its sale price. Across the ten municipalities studied, the licence delay added an average of 12,802 euros per home.
The public housing stock is where the political promises concentrate, and where the numbers stop agreeing with each other, because they are not measuring the same thing. The OECD's Affordable Housing Database puts Spain's social rental stock under 2% of total housing stock, in the same bracket as Colombia, Estonia, Israel, Latvia, Lithuania and Portugal. Austria, Denmark and the Netherlands sit at the top of the OECD's ranking, each above 20%. Spain's own housing ministry, meanwhile, reports a different measure entirely: the flow of new construction, not the existing stock. Of all homes that broke ground between the fourth quarter of 2024 and the third quarter of 2025, 20% were protected housing, up from 15.21% the year before, the ministry said in a December 2025 release. That is real growth in what gets built each year. It says nothing about how large the stock already is relative to the population, which is what the OECD figure measures, and on that figure Spain sits near the bottom of Western Europe.
What Catalonia's rent caps actually did
Catalonia was the first Spanish region to apply the "stressed market zones" mechanism in the 2023 national housing law, which lets regional governments cap rent rises where affordability has broken down. Two years in, a study published in June 2026 by Fernando Pinto, an economist at the Universidad Rey Juan Carlos, for the think tank Fedea, compared regulated Catalan markets with unregulated Madrid between the first quarter of 2024 and the fourth quarter of 2025. Rents in Barcelona and Catalonia did rise more slowly than in Madrid: 5.7% against 8.5%, against 10.8% for Spain as a whole. But rental listings in Barcelona fell 22.2% over the same period, and in Catalonia overall by 20.5%, while listings in unregulated Madrid grew 3.9%. By the fourth quarter of 2025, a listing in Barcelona drew an average of 462 contacts; one in Madrid drew 103. Pinto describes that gap as a difference of magnitude, not a marginal one. His own conclusion was blunt: the law had not achieved its stated goal of improving access to housing.
Rent caps did one thing well. They protected sitting tenants from the sharper rises recorded elsewhere. What they did not do was add a single home to the stock. They redistributed scarcity rather than reducing it.
What each party is proposing for November 29
PSOE's Plan Estatal de Vivienda 2026-2030 commits 7 billion euros, split 60% from the central government and 40% from the regions, roughly three times the budget of the previous plan. Its central promise is permanence: public housing built under the plan "no podrá ser descalificada," cannot be stripped of its protected status later, which has happened to protected units in the past once their original terms expired. The plan sets no explicit target for what share of the total stock public housing should reach. "Tu Casa" sits awkwardly alongside it: a zero-interest loan for buyers does not add a single unit of supply. It helps people compete for housing that already exists.
Alberto Núñez Feijóo pledged on January 12, 2026 to close Spain's housing deficit, which he put at a million homes, over the next legislature. The mechanism is a "Plan Residencial Estratégico" meant to cut construction timelines from ten years to four, paired with freeing up all publicly owned urbanisable land and tying the roughly 22 billion euros in accumulated local-government surpluses to new construction or land release. The PP's separate "Declaración de Asturias" proposes state-backed guarantees covering 100% of mortgage financing for buyers up to 40, and cutting the average nine-month wait for planning permits to three. The guarantees and tax cuts help people buy into an undersupplied market rather than expanding it. The permitting target, if it worked, would address the real bottleneck the OBS report and the ASPRIMA data both point to. Feijóo has not published how four years of construction would be financed at the volume a million homes requires.
Vox's platform calls for repealing the 2023 housing law, freeing land that is not under special environmental or heritage protection, and giving Spanish nationals priority on public housing waiting lists, a "prioridad nacional" position that has drawn criticism even from the PP over how it would work in practice. At the party's pre-campaign launch in Estepona on October 11, Santiago Abascal tied the shortage to immigration, citing roughly five million arrivals over five years against a construction pace he said has not kept up, and cited a 74% rise in home prices and a 40% rise in rents over Sánchez's eight years in government. Vox has not published costing that reconciles a national social-housing program with the tax cuts and deregulation in the rest of its platform.
Ada Colau is heading "Frente Amplio," a coalition list combining IU, Más Madrid, Comuns and Sumar, as of mid-October. In media appearances around October 13, she framed the problem as affordability built around two incomes rather than one, saying rent "se aguanta porque está pensado para dos." The coalition's concrete commitments come from Sumar's existing platform: 1% of GDP a year for public affordable rental housing, a 40 billion euro state fund financed initially through low-cost EU loans, and 500,000 social rental homes built this legislature at rents of 400 to 600 euros a month in stressed areas, alongside a cap limiting rent in those areas to 30% of a tenant household's income. On the Fedea evidence above, that rent-cap tool reduces supply unless matched by construction at the scale the fund is supposed to deliver, and 500,000 homes over one legislature is itself an ambitious multiple of what Spain has built through public programs in recent years.
Vienna is the example nobody can copy by 2030
Vienna is the model every Spanish housing debate eventually reaches for. The city council adopted its first public housing programme on September 21, 1923: 25,000 flats within five years, funded by a dedicated construction tax on the luxury spending of the wealthy. The target was met early, and a second programme for 30,000 more flats began in 1927. The programme's financial base survived because Vienna had gained fiscal sovereignty as its own federal province in 1922, giving the city a tax-raising power that did not depend on who held power nationally. Roughly 43% of Vienna's current housing stock is social housing, according to reporting in Vol.at, with another 33% in ordinary private rental.
None of that transfers to a single Spanish legislature. Vienna's model rests on more than a century of financing through a tax base the city controls directly, and on municipal land ownership built up over generations, on a scale no Spanish city holds today. Even Vienna is not immune to the pressure. "Housing is becoming more expensive even in Vienna," the TU Vienna social scientist Sarah Kumnig told Vol.at in October 2025, adding that conditions for new subsidised construction have grown difficult. The economist Elisabeth Springler, of Vienna's bfi, pointed to rising "financialization" in the city's housing market and said that despite Vienna's high share of protected rental, "the challenges are similar" to those facing other European metropolitan regions. It is a destination worth naming. It is not something any Spanish party can deliver by 2030, and none claims otherwise.
What would actually move the number
The OBS report names the fix on the supply side: collapse the sequential municipal, regional and national approval process into something closer to parallel review, and cut ordinary development timelines from ten or fifteen years to around four. Feijóo's own plan names the same four-year target without saying how the financing or the approvals would actually move that fast. Pair a faster approval process with public money committed to building and holding housing at a scale sustained across several governments, not one term, and the housing-stock gap starts to close. Nobody on the ballot has costed that second part at anything like Vienna's scale or its multi-decade time horizon. PSOE's plan has a budget but no stock target. The PP has a construction-speed target but no financing plan to match it. Sumar and its coalition partners have a GDP-linked spending commitment paired with a rent-control tool that, on the evidence from Catalonia, works against the supply it is meant to protect.
Watch two numbers after November 29, not the campaign rhetoric: how many years it takes a zoned plot to become an occupied home, and how many public housing units get added to the stock, not promised, in each year that follows.
Notes
- El Congreso dice no a los decretos de vivienda con los votos en contra de PP, Vox, Junts y UPN ↩↗
- El Congreso tumba los decretos de vivienda pese al aviso de Sánchez: "Serán juzgados antes de lo que creen" ↩↗
- El Gobierno aprueba los dos decretos en materia de vivienda con incorporaciones «muy positivas» ↩↗
- El PNV votará sí al decreto de vivienda del sector socialista del Gobierno ↩↗
- Elecciones generales León 2026: Sánchez anuncia 10.000 millones de financiación para la compra de una primera vivienda ↩↗
- ¿Un fraude constitucional para aprobar los decretos-leyes de vivienda? ↩↗
- OBS Report: Real Estate Market in Spain 2025 ↩↗
- El comprador de vivienda nueva paga 13.000 euros de más por los retrasos en las licencias urbanísticas ↩↗
- OECD Affordable Housing Database ↩
- El 20% de las viviendas que se empezaron a construir en el último año son protegidas ↩↗
- Fedea constata que la Ley de Vivienda ayuda a moderar el precio del alquiler pero reduce con fuerza la oferta ↩↗
- Fedea constata que la Ley de Vivienda ayuda a moderar el precio del alquiler pero reduce con fuerza la oferta ↩↗
- RESUMEN DEL REAL DECRETO 326/2026, DE 22 DE ABRIL, POR EL QUE SE REGULA EL PLAN ESTATAL DE VIVIENDA 2026-2030. ↩↗
- Feijóo contraprograma el acto de Sánchez con la promesa de un millón de viviendas para la próxima legislatura ↩↗
- La Declaración de Asturias, apuesta del PP en vivienda ↩↗
- Abascal arranca la precampaña de Vox: vivienda, pensiones y 'remigración' para el 29-N ↩↗
- La «prioridad nacional» desata discrepancias entre PP y Vox: ¿Arraigo o españoles primero? ↩↗
- El plan de Vox para la vivienda: menos impuestos, liberalización del suelo y lucha contra la okupación ↩↗
- Ada Colau: “Jamás he cobrado más de 100.000 euros y he vivido toda mi vida de alquiler” ↩↗
- Sumar propone contratos de alquiler indefinidos y un IVA del 21% para viviendas turísticas ↩↗
- Affordable Housing Disappears - and With It, Vienna's Reputation as a Model Metropolis ↩↗
- Vienna social housing portal, "History" ↩↗
