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The Great Britain Guide

Gardens · London

Mondial House

In or near City of London.

♿ Wheelchair accessible

Mondial House — a garden in england-london, United Kingdom.

A-spiring to find a hundred churches (13) - geograph.org.uk - 5207369

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
Parish
City of London, unparished area
Postcode
EC4R 3UE
Parliamentary constituency
Cities of London and Westminster
Established
1978
Nearest railway station
London Cannon Street0.1 km

Sources

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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.