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30 St Mary Axe (The Gherkin), London’s Iconic Sustainable Skyscraper

A striking, sustainable skyscraper in London’s financial heart, blending innovative design with panoramic city views and historic roots.

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Known as The Gherkin, 30 St Mary Axe is a 180-meter tall, 41-floor skyscraper in London’s financial district. Designed by Sir Norman Foster and completed in 2004, this architectural marvel features a distinctive curved shape, energy-saving ventilation shafts, and extensive glass cladding. It houses offices, a restaurant, and a bar with panoramic city views, making it a landmark of modern London and a symbol of innovative design and sustainability.

A brief summary to 30 St Mary Axe (The Gherkin)

  • 30 St Mary Axe, London, EC3A 8BF, GB
  • +442070715029
  • Visit website
  • Duration: 0.5 to 2 hours
  • Mid ranged
  • Environment icon Outdoor
  • Mobile reception: 5 out of 5

Local tips

  • Visit the top-floor bar or restaurant for exceptional panoramic views of London’s skyline.
  • Explore nearby attractions like Leadenhall Market and The Monument to complement your visit.
  • Check for Open House London events to gain special access to the building’s interior.
  • Admire the building’s energy-efficient design features visible in its glass facade and ventilation shafts.
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Getting There

  • London Underground

    Reach The Gherkin via Liverpool Street station, Aldgate, or Bank Underground stations. Travel times vary from 15 to 25 minutes from central London zones. Stations are well connected with frequent services, and walking from any of these stations to the building takes about 5 to 10 minutes.

  • Bus

    Multiple London bus routes serve the area around 30 St Mary Axe. Buses run frequently throughout the day, with typical journey times from central London between 20 and 40 minutes depending on traffic. Bus stops are within a short walk of the building.

  • Taxi or Rideshare

    Taxis and rideshare services can drop you directly at 30 St Mary Axe. Travel times from central London range from 15 to 30 minutes depending on traffic. Note that parking is limited and expensive in the City of London.

30 St Mary Axe (The Gherkin) location weather suitability

  • Weather icon Any Weather
  • Weather icon Clear Skies
  • Weather icon Mild Temperatures

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A Landmark of Modern London Architecture

30 St Mary Axe, popularly known as The Gherkin, stands as one of London’s most recognizable modern skyscrapers. Rising 180 meters (591 feet) with 41 floors, it dominates the City of London’s financial district skyline. The building occupies the site of the former Baltic Exchange, which was severely damaged in a 1992 bombing. Designed by Sir Norman Foster and his firm Foster + Partners, the tower was completed in 2003 and opened in 2004. Its unique, rounded, bullet-shaped form earned it the affectionate nickname “The Gherkin” due to its resemblance to a pickled cucumber.

Innovative Design and Sustainable Engineering

The Gherkin’s design incorporates high-tech architectural principles and neo-futurism, emphasizing sustainability and energy efficiency. The building features a spiraling pattern of diamond-shaped glass panels covering 24,000 square meters—equivalent to five football pitches. It uses a natural ventilation system with six shafts running through the floors, allowing fresh air to circulate and reducing reliance on mechanical air conditioning. This system also creates a double-glazing effect that insulates the interior, helping the building consume only half the energy of a comparable tower.

Structural and Aesthetic Features

Constructed with over 35 kilometers of steel weighing 10,000 tonnes, The Gherkin’s structure is both robust and elegant. Remarkably, it uses only one piece of curved glass—the lens at the top dome. The floors rotate approximately 5 degrees from the one below, creating its distinctive twisting shape. The building’s aerodynamic form helps it withstand high winds, while its glass facade allows natural light to flood interior spaces, enhancing the working environment.

Public and Private Spaces

While primarily an office building hosting major companies such as Swiss Re, The Gherkin also features public amenities. The 38th floor houses private dining rooms, the 39th floor a restaurant, and the 40th floor a bar with panoramic views over London. These spaces offer a unique perspective of the city’s skyline and are prized for their atmosphere and design.

Historical Context and Cultural Significance

The site’s history as the former Baltic Exchange headquarters adds depth to The Gherkin’s story. The original building’s stained-glass dome inspired the design of the current tower’s top dome, known as the "Lens." The Gherkin has become a symbol of London’s prosperity, architectural innovation, and commitment to sustainable urban development. It has received numerous awards, including the Royal Institute of British Architects Stirling Prize in 2004 and the Emporis Skyscraper Award.

Visitor Experience and Surroundings

Located near landmarks such as Leadenhall Market, The Monument, and the Bank of England Museum, The Gherkin is accessible by multiple London Underground stations and bus routes. Its presence enriches the City’s architectural diversity, contrasting with more traditional buildings. Visitors appreciate its striking silhouette, especially when illuminated at night, and the opportunity to glimpse London from its high-level restaurant and bar.

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