The place takes its name from Brockley Hill itself, a geographic feature which rises to a height of 136 metres above sea level. Any property for sale in the area has an HA7 postcode. Transport Links The number 615 bus links the area with other nearby towns, like Stanmore and Hatfield. Elstree and Borehamwood railway station is the nearest rail facility, offering regular links to London St Pancras to the south and Bedford to the north. For motorists, the M1 is easily accessible, putting the place within commuting distance of London itself, as well as many other places.