Brydges Place
Brydges Place is an alley between St Martin's Lane and Bedfordbury in the City of Westminster, Greater London, running alongside the Coliseum. It is especially narrow, being just  wide at one point, and so is commonly claimed to be the narrowest street in London., although in fact Emerald Court, near Great Ormond Street Hospital is narrower.

In 2019, the alley was used as a filming location for Last Christmas.

References

Footpaths in London
Covent Garden
Alleys in England