The M25 - Britain's Biggest Carpark

Margaret Thatcher finally opened London’s first ring road - construction on which had begun in the 1970s - on 29th October, 1986, declaring: "I can't stand those who carp and criticise when they ought to be congratulating Britain on a magnificent achievement and beating the drum for Britain all over the world".

A 58-page commemorative booklet was issued for enthusiasts, and coach trips were organised so that car-less punters could complete a circuit of the new motorway. But public enthusiasm for the project was short-lived when it lead to increased congestion and seemingly endless proposals for expansion.

In this episode, Arion, Rebecca and Olly dig into the long history of plans for the capital’s ring roads; explain why the M25 managed to bring Epping's combine harvesters to Parliament Square; and consider how Britain’s most hated motorway remains an existential threat to London's ‘green belt’ countryside……

This episode first aired in 2021

This episode first premiered in 2024, for members of 🌴CLUB RETROSPECTORS🌴 - where you can also DITCH THE ADS and get weekly bonus bits, unlock over 100 bits of extra content and support our independent podcast. Join now via Apple Podcasts or Patreon. Thanks!

 

We'll be back tomorrow! Follow us wherever you get your podcasts: podfollow.com/retrospectors

 

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.

Copyright: Rethink Audio / Olly Mann 2025.

Learn more about your ad choices. Visit podcastchoices.com/adchoices