The Sagrada Família in Barcelona has reached its planned height of 172.5 meters [3] after the installation of its final piece.

This milestone marks the culmination of a construction project that has spanned over a century. The completion of the central tower realizes the original architectural vision of Antoni Gaudí, blending 19th-century artistry with 21st-century engineering.

Construction on the basilica began in 1882. Depending on the source, the project has been underway for between 140 [2] and 144 years [1]. The final piece of the structure was placed on Feb. 20, 2026 [4].

Modern technology played a critical role in overcoming the loss of Gaudí's original plans. A fire in 1936 destroyed the architect's workshop [5], leaving builders to interpret his vision from fragments and models. To bridge this gap, engineers employed laser scanners and 3D printing to ensure precision in the stone cutting and placement.

These contemporary tools allowed the team to execute complex geometric shapes that were difficult to calculate by hand. The integration of digital modeling ensured that the new additions remained faithful to the organic style Gaudí established during his lifetime.

The basilica remains a symbol of Barcelona, Cataluña, and the persistence of architectural ambition across multiple generations.

The Sagrada Família in Barcelona has reached its planned height of 172.5 meters

The completion of the towers signifies a transition for the Sagrada Família from an active construction site to a finished monument. By utilizing additive manufacturing and digital scanning to replace lost 1936 records, the project serves as a primary case study in how modern technology can be used to restore or complete historical works without compromising original intent.