BT Tower is a tall, slender tower, cylindrical in shape, at 60 Cleveland Street,
Fitzrovia, London, bordered by Howland St, Cleveland Mews and Maple St. It is 175 metres (574 feet) tall, but with an aerial added, its total height is 188 metres (620 feet).
BT Tower was originally built for the General Post Office, and was known as Post Office Tower. Its purpose was to support microwave aerials then used to carry telecommunications traffic from London to the rest of the country. It replaced a much shorter tower built in the 1940s. It was deliberately made thin to meet the requirements of communications aerials. Construction began in June 1961, and the tower was topped out on 15 July 1964. Then Prime Minister Harold Wilson officially opened it on 8 October 1965. It only opened to the public on 16 May 1966, with viewing galleries, a souvenir shop, and a rotating restaurant - the "Top of the Tower" - on the 34th floor. The rotating restaurant makes one complete round in 22 minutes. An IRA bomb exploded in the men's toilet roof, on 31 October 1971, resulting in the closure of the restaurant to the public.
When GPO telecommunications services were split up in 1981, the run up to privatisation in 1984, the tower was renamed London Telecom Tower. When the company rebranded again in 1992, it became the BT Tower. Although the restaurant has been used for BT events and promotions, the tower itself is still not open to the general public. Until the mid-1990's, the building was in fact officially secret - it does not appear on official maps. Its existence was only "confirmed" when Kate Hoey, MP, on 19 February 1993, stated: "Hon. Members have given examples of seemingly trivial information that remains officially secret. An example that has not been mentioned, but which is so trivial that it is worth mentioning, is the absence of the British Telecom tower from Ordnance Survey maps. I hope that I am covered by parliamentary privilege when I reveal that the British Telecom tower does exist and that its address is 60 Cleveland Street, London.
An Act of Parliament was passed allowing the BT Tower to be evacuated by using the lifts - the only building in UK permitted to do so.
Getting there
Nearest Tube Station:
Great Portland Street Tube Station.
More information for visiting London
Here are some related articles to help you get to know London better.
- Cost of Living in London: Discover the true cost of living in London, including housing, transport, groceries, and more - plus tips for budgeting in one of the world's most expensive cities.
- Driving in London: Planning to drive in London? Learn about roads, car rentals, parking, tolls, and key tips for tourists and visitors from outside the capital.
- Driving Tips for Visiting London: Thinking of driving to London? Discover the best times to travel, congestion tips, parking apps, breakdown help, and petrol advice for a smoother journey.
- Evolution of London's Streets: Discover the fascinating history of how London's streets developed from ancient footpaths to today's complex network of roads across the capital.
- History of Immigration to London: Discover the rich history of immigration to London, from Huguenots to Bangladeshis, and how diverse communities have shaped the city's vibrant identity.
- How Big Is London Compared to Other World Cities?
- How London's Streets Measure Up: A Global Comparison of Road Widths
- How Streets of London are Named: Discover how London streets get their names, who decides them, and how historic, political, and public influences shape street naming in the capital.
- How the Grosvenor Family Came to Own Much of Mayfair, Belgravia and Pimlico: Explore how the Grosvenor family came to own much of Mayfair, Belgravia, and Pimlico, and learn about their historical connection (or lack thereof) with the British royal family and government.
- Living and working in London
- London's Quiet Collapse: How Living Standards Fell as Costs Skyrockted (1975-2025): Explore how London residents endured rising costs and falling living standards from 1975 to 2025 - from rocketing rents to wage stagnation and inflation.
- Marvel of the London Underground: Discover the history, challenges, and triumphs of the London Underground - the world's first underground railway and a vital transport lifeline for the UK capital since 1863.
- Moving to London: Expat Tips for Settling in Westminster: Essential advice for expats moving to London's Westminster: neighborhood insights, cost of living, transportation, housing, healthcare, schools, and tips to help you feel at home in the heart of the city.
- Places in London that aren't pronounced the way they're spelled
- Shopping in London: Discover London's diverse shopping scene
- Taking the bus in London: This is your complete guide to taking the bus when in London.
- The Anglican Faith: A Visitor's Guide to the Church of England: Learn about the Anglican faith and its deep ties to London's landmarks like Westminster Abbey and St Paul's Cathedral.
- Top 10 London Streets Every Visitor Must See: Discover London through its most iconic thoroughfares - 10 streets every visitor must experience. From historic Abbey Road to vibrant Camden High Street, explore culture, shopping, and hidden gems.
- Why are most roads in Central London so narrow? Learn why there are so few multi-lane roads and elevated highways in the heart of the city.