Small businesses are urging London councils to re-think their parking rules, saying they are being badly affected by new charges.
The Federation of Small Businesses has created a parking map, to raise awareness of the issue. Glen Goodman has been to one High Street to find out more.
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The London boroughs of Southwark, Westminster, Lambeth, Hackney and the City of London were all found to be lagging behind.
An open letter by residents said they wanted to ensure justice is served for everyone on the estate.
The world's first ever 'hole in the wall' was installed in Enfield, north London, on June 27 1967.