Spain's Franco-era 45m² flats: an inheritance nobody renovates

Franco's cheap housing: 45m² units Spain cannot recycle

A 16-square-meter living room, two 80cm beds against the wall, a kitchen that looks like a large wardrobe, and a drying rack with an empty birdcage. The listing says it plainly: "Age: 1950s. Price negotiable, needs renovation." That 45-square-meter flat with two or three bedrooms is the cheapest option in almost any Spanish city and, at the same time, the last standing trace of the social housing law introduced by the Franco regime in 1954. Seventy years later, those who first lived there are ninety. Those who inherit them are in their sixties. And they don't know what to do with them.

The origin: a country without houses and without money to build them

These flats emerged because Spain was a destitute economy. In the 1940s, GDP grew less than 1.2% annually, and the country built barely 1,200 homes per year. There were no materials, no financing, no companies. What existed was shantytown living: Madrid alone counted 20,000 shacks housing 120,000 people. Rural exodus filled Barcelona, Bilbao, and the capital faster than construction could keep up.

During its first decade, the regime viewed architecture as a symbolic showcase, favoring palace-like buildings. The real problem arrived with those coming from villages who had nowhere to sleep. That changed the paradigm. The 1954 regulation and its subsequent development defined the scenario for the great economic leap: the hygienist revolution, the creation of a middle class, and much of the market economy's development can be explained through these flats.

How much did a cheap 1950s house cost?

Designs were priced by decree. There were three categories—minimal, reduced, and social type—differentiated mainly by construction cost: 800 pesetas per square meter, 1,000 pesetas per square meter, and 25,000 pesetas total maximum, the latter equivalent to about €10,000 today. Units up to 100 meters were planned, but almost all production stayed between 35 and 58 square meters.

The map included absorption settlements for shanty dwellers and emergency operations that lasted until the 21st century. In 1969, one such flat cost a family €1,000 of the time (170,000 pesetas), according to testimonies circulating in discussions. Another recalls 300,000 pesetas for a three-bedroom unit with a family room. Today, building 60 square meters under current regulations costs no less than €70,000, excluding land.

Children are 65, and the flat remains

Architect Juan Pedro Sanz, author of a doctoral thesis on this social housing, places age at the center of the problem: a couple who moved into one of these flats in their twenties is now around ninety. "Obviously, many people die. Or are in precarious conditions and can no longer care for these flats," he summarizes. The arithmetic is relentless: in 1960, the average age of first-time mothers was 24 years; if those women live to 84, their children are around 60.

Writer Manuel Calderón, Comillas Prize winner and author of Descampados, tells it from within: his 92-year-old mother still lives in the flat she bought with his father in L'Hospitalet. "The flat was part of a life project focused on getting us kids to university. My parents were delighted." The paradox came later, when those children saw better homes: "We started being a bit ungrateful."

Renovate, unify, or demolish?

The Superior Council of Architects' Associations maintains a program to advise communities trapped in this situation: seeking funding, providing technical assistance, and studying solutions. Can an elevator fit on the facade? Can insulation be improved? Can flats be expanded with exterior galleries, as Lacaton and Vassal did in the Bordeaux block that won the Mies van der Rohe Award? Yes, but it depends on the neighbors' vitality.

Here lies the rift. Some argue that these blocks' structures are practically eternal and that comprehensive renovation, merging two or three units horizontally to gain space, is reasonable. It would be cheaper than new construction, they claim. Opposing views are clear: if construction quality is poor, it is better to demolish and build for the next eighty years.

Central, small, and with waiting lists

The scene of the cheap listing hides its own contradiction. These blocks were built in peripheries that urban growth has integrated: they are now coveted land. Yet, even these are scarce. Rents for flats of this vintage in Barcelona range between €900 and €1,000 per month, with competition to secure them. For a single person, that uninsulated 45-square-meter home is still better than what they can afford.

Not everyone accepts the portrait. Several voices argue that the worst examples from those decades have been highlighted, noting that there are also old-rental properties of 120 usable square meters, central, even with garages, antiestéticaturing three bedrooms and a large kitchen. Everything depends on the year and developer, they remind us, in a stock where most surviving units were built then.

In 1960, the average age of first-time mothers was 24. That baby is now over 60, and their mother is around 84. Neither will be there to decide what to do with a 45-square-meter house that cost 25,000 pesetas and is now listed, price negotiable, needing renovation.