This may be a shock, but the price of a Big Mac meal changes from McDonald’s to McDonald’s.

Like many I thought that the price of a Big Mac was one of life’s constants, and was surprised when I noticed that my local McD’s was cheaper than the one near my work. With the Economist’s Big Mac index as inspiration I set out to visit as many McDonald’s in London as possible to map out the price fluctuations in the city. My theory being that the variations in price would relate to socioeconomic disparities in the city.

The map on this site shows the results of this survey.

The survey was carried out by journalist and architectural historian Tom Ravenscroft.