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Shinjuku Sumitomo Building: A Triangular Landmark

Discover the iconic Shinjuku Sumitomo Building, a triangular skyscraper with a rich history and modern appeal in the heart of Tokyo's bustling Shinjuku.

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The Shinjuku Sumitomo Building, nicknamed "Triangle Building" for its distinctive shape, is a 52-story skyscraper in Tokyo's Nishi-Shinjuku district. Completed in 1974, it was once Japan's tallest building and remains a prominent feature of the Shinjuku skyline, housing offices, restaurants, and a spacious public atrium.

A brief summary to Shinjuku Sumitomo Building

Local tips

  • Explore the surrounding Nishi-Shinjuku district, known for its modern architecture and numerous skyscrapers.
  • Check out the nearby Tokyo Metropolitan Government Building for free panoramic views of the city.
  • Enjoy a meal at one of the many restaurants in the building, offering diverse cuisines and stunning city views.
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Getting There

  • Walking

    From Shinjuku Station's west exit, walk straight along the main road, passing the Shinjuku Central Park on your right. The Shinjuku Sumitomo Building will be visible on the left after approximately 10 minutes. No costs involved.

  • Public Transport

    Take the Toei Oedo Line to Tochomae Station, which is directly connected to the Shinjuku Sumitomo Building via Exit A6. The subway fare from Shinjuku Station is approximately ¥180-200. Alternatively, take the Marunouchi Line to Nishi-shinjuku Station, a 4-minute walk to the building. The fare is also around ¥160-200.

  • Taxi

    A taxi from Shinjuku Station to the Shinjuku Sumitomo Building takes approximately 5 minutes and costs between ¥1400-¥1800, depending on traffic. Taxis are readily available at the station's taxi stands.

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Discover more about Shinjuku Sumitomo Building

The Shinjuku Sumitomo Building stands as a testament to Tokyo's architectural innovation. Completed in 1974, the 211-meter-tall skyscraper quickly became a landmark due to its distinctive triangular shape, earning it the moniker "Triangle Building". Designed by Nikken Sekkei, the building was briefly the tallest in Japan and Asia, symbolizing the country's rapid economic growth during that era. The building's design incorporates a three-sided structure that maximizes space, although it features a large atrium that runs the entire height of the building. This design choice, while sacrificing some floor space, creates a unique internal environment. The building is engineered to withstand earthquakes, a crucial consideration in Tokyo. Recent renovations, completed in 2020, added a large glass roof over the Sankaku Hiroba (triangular plaza), creating an all-weather communal area and enhancing the building's sustainability. Today, the Shinjuku Sumitomo Building is home to a variety of businesses and restaurants. While the free observation deck on the 51st floor is now closed, the building remains a popular spot for its architectural significance and central location in the bustling Shinjuku district. The surrounding area offers wide, easily navigable streets, making it accessible for all visitors.

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