This map shows the average house price near all the major stations on the capital's train network
The map, by property company eMoov, reveals huge disparities between areas, with prices plummeting just by moving from Zone 1 to Zone 2.
It shows the average property price for somewhere near one of the capital's 14 main rail terminals is just over £1 million.
But, by moving slightly further out to near Clapham Junction, that figure falls to £711,000.
Further east, in Zones 2 and 3, Stratford's average price is around half that - only £359,000.
Heading out slightly further to somewhere like Bromley South in Zone 5, the price topples to a far more affordable £295,000.
The station with the cheapest price shown on the map for London is Barking, where homes are an average of just £255,000.
Interestingly, the map shows how this pattern is also spread across the entire country, albeit on a cheaper scale.
Russell Quirk, founder of eMoov, said: The latest trend for homeowners in London has been to forsake the capitalís inflated property market for the commuter belt surrounding it.
"But when you look elsewhere in the country there are other examples of homeowners opting to live outside larger cities to save on the price of their property.
"This property rail map allows you to visualise these."