South Street is a hamlet in the far south of the London Borough of Bromley, 16.5 miles (27 km) south south-east from Charing Cross. It is the highest settlement in all of the London Region, averaging about 220 metres (722 ft) above sea level. It is about 1 km east of the larger settlement of Tatsfield, and about 5 miles (8 km) from Junction 5 of the M25, and lies outside London's contiguous built-up area. The hamlet lies along the A233 road, which connects Biggin Hill with the A25 near Westerham.