Gardens · London
Mondial House
In or near City of London.
Mondial House — a garden in england-london, United Kingdom.

Basher Eyre — CC BY-SA 2.0 via Wikimedia Commons licence
Plan your visit
- Typical visit
- 1 h–2.5 h
- Best time of year
- Spring & summer (Apr–Sep)
- Nearest railway station
- London Cannon Street · 0.1 km
- Dog-friendly
- Wheelchair accessible
About
Mondial House is a garden of interest in england-london, United Kingdom — drawn from open-data sources for visitor reference. See the linked Wikipedia article for the full description.
Photo gallery
360° viewimagery from 2026
Imagery © Mapillary contributors, CC BY-SA 4.0
From the Wikipedia article
Mondial House was a main telecommunications hub in central London on the banks of the River Thames. It was known as an international switching centre (ISC). Built in 1978 the building was seen as controversially modern-looking. It was demolished in 2006.
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
History
When completed in 1978, it was the largest telephone exchange in Europe. Riverbank House was next door to the east. The architectural style was not unlike the Royal National Theatre. The International Control Centre was officially opened on 3 May 1984.
Architecture
It was built on the churchyard of the former All-Hallows-the-Great on Upper Thames Street (A3211). It was built on a 2.5-acre site. It cost £18m, with £11m for the telecommunications equipment. In September 1971, Plessey Telecommunications was given a £10m contract. It had the TXK type of switching equipment. The site was planned to open in 1975 but opened in 1978. It was only by the mid to late 1980s that the building was fully fitted. By this time, the immense amount of analogue telecommunications equipment being fitted was becoming obsolete.
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 51.5100, -0.0900
- District
- City of London
- Parish
- City of London, unparished area
- Postcode
- EC4R 3UE
- Parliamentary constituency
- Cities of London and Westminster
- Established
- 1978
- Nearest railway station
- London Cannon Street — 0.1 km
- Official site
- www.londonmithraeum.com
Sources
- wikidata: Q29625289 (CC0)
- wikipedia: Mondial House (CC BY-SA 4.0)
Other places nearby

All-Hallows-the-Great
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St Mary Bothaw
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Dyers' Hall
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The Roman riverside wall and wharves at Riverbank House
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Nearby
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All-Hallows-the-Great
All-Hallows-the-Great — church in City of London, UK.
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All-Hallows-the-Less
All-Hallows-the-Less — church in the City of London.
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St Mary Bothaw
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Memorials & monuments · London
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Dyers' Hall — a memorial in england-london, United Kingdom.
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The Roman riverside wall and wharves at Riverbank House
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Eastern Tower To Cannon Street Station Pair Of Towers At Cannon Street Station
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Frequently asked questions
- Where is Mondial House?
- Mondial House is in London, United Kingdom (postcode EC4R 3UE), in the parish of City of London, unparished area.
- What is Mondial House?
- Mondial House — a garden in england-london, United Kingdom.
- How do I get to Mondial House?
- The nearest railway station is London Cannon Street, about 0.1 km away. Drivers can use postcode EC4R 3UE.
- When was Mondial House built?
- Built or established in 1978.
- Who owns Mondial House?
- Mondial House is owned by Post Office Telecommunications.
- How do I get to Mondial House?
- The nearest railway station is London Cannon Street, about 0.1 km away. Drivers can navigate to postcode EC4R 3UE.