Castellana 81, Modernist skyscraper in Tetuán district, Madrid, Spain
Castellana 81 is a modernist office tower in the Tetuán district that rises 107 meters above ground across 28 floors with a distinctive steel and glass facade. The building contains 14 elevators to serve its spaces, along with four basement levels that include an auditorium and exhibition areas.
Architect Francisco Javier Sáenz de Oíza designed this office tower in 1971, with construction taking place between 1979 and 1981 for Banco de Bilbao. The project emerged during Madrid's period of urban modernization in the late 20th century.
The structure received protection as a listed cultural asset, marking its importance in Madrid's architectural heritage from the late 20th century. This recognition reflects how the building shaped the city's modern skyline during a period of urban transformation.
The basement levels with the auditorium and exhibition areas are open to visitors, though access to office floors is restricted since this remains an active workplace. Plan visits during business hours when public areas are most likely to be accessible.
The building's foundation was engineered to accommodate a commuter rail tunnel that passes through its lowest basement level. This technical solution allowed the tower to be built without disrupting the transportation infrastructure beneath the site.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
