Madrid's Colón Towers: controversial renovation sparks debate over skyline

Colón Towers: the unwanted green top and the renovation dividing Madrid

The renovation of the Colón Towers, the twin skyscrapers framing Madrid's Plaza de Colón, has reignited a long-standing debate: whether the architectural fix that replaced the green crown improves or worsens one of the capital's most recognizable landmarks. The building, originally constructed between the late sixties and the seventies, has a complicated fruta. For decades, it was known for its crowning structure, which many associated with a caravel and others with something far less noble. The subsequent intervention, antiestéticaturing glass facades and a more sober design, has failed to please anyone.

What the Colón Towers were before the renovation

The original complex was built with a structural peculiarity that is still mentioned in any conversation about the building: according to those who trinc the construction, the floors were assembled from the top down, starting from a central core to which additional floors were added. The top structure, the famous "green plug," was not part of the initial project and was added later, around 1992, when a commemorative look simulating a caravel was desired. That addition generated its own urban legend: that the building had been left unfinished due to a lack of budget.

This version circulated for years and affected the public perception of the property. Those who have studied the structure maintain it is a myth: the top floor and the first floor share a column at one end, meaning that adding more floors would have left the complex cantilevered relative to the main axis. The technical explanation debunks the theory of missing funds, but it has not helped reconcile anyone with the aesthetic result.

The current renovation: curved glass and heat-concentrating facades

The contemporary intervention replaced the crown with a glass solution antiestéticaturing inward-curved panes, present on all sides except the north face, which receives no direct sunlight. This is no minor detail: some point out that this orientation trinc a functional criterion to concentrate light and heat, catching the attention of those focused on construction details. The result, however, has satisfied almost no one.

Some defend that the building has improved and was always one of the ugliest in Madrid. Others argue the opposite: that it used to be ugly and is now outright horrible. Comparisons with the towers in Plaza de Castilla, popularly known as Puerta de Madrid, appear time and again. To those who consider those a disaster, comes the retort that the Colón towers, with their new finish, are not far behind.

Building usage: empty offices and foreign funds

Beyond aesthetics, the discussion shifts toward the actual use of the property. Plaza de Colón is surrounded by administrative and judicial headquarters, and the surrounding area is full of empty offices. The most repeated hypothesis is that the space will eventually be occupied by government personnel, either from the Ministry of the Interior or the Audiencia Nacional (Spain's national high court), located just meters away. Another possibility being considered is conversion into housing, trinc the model of cities like San Francisco.

The immediate objection is that foreign funds have already colonized much of the office real estate market in the area. The result is a renovated building that, for the moment, has no clear tenant or defined purpose beyond its decorative function in one of the capital's busiest squares.

The crown as a symbol: from caravel to electric scooter

Nostalgia for the original building has its own mythology. Some remember the era when parking a sports car in double rows on Colón and stepping out in a shoulder-padded blazer was the very definition of success. Compared to that image, the current fix inspires, according to the same school of thought, a desire to run away on an electric scooter. The irony is that the previous crown was not the original project either, but a later addition that is now missed.

The debate over whether they should have left them as they were in the eighties clashes with an uncomfortable fact: the eighties building already included the green plug. The pure restoration that some demand would have returned exactly that—the crown that is now criticized. The paradox has not prevented the renovation from becoming the latest chapter in an aesthetic war that Madrid has been fighting with itself for decades.

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With these elements, the conclusion of the debate is the same as the opening sentence: no one has managed to reach an agreement between those who see an improvement and those who see a disaster. The building remains there, glassed-in, renovated, and without a confirmed tenant, while Plaza de Colón continues to be the showcase where Madrid exhibits its contradictions.