Coordinates : 51 ° 28 ′ 12 ″ N 0 ° 00 ′ 32 ″ E \ / 51.47 ° N 0.009 ° E \ / 51.47 ; 0.009 Blackheath is an area of South East London , with the London Boroughs of Lewisham and Greenwich .
Coordinates : 51 ° 28 ′ 12 ″ N 0 ° 00 ′ 32 ″ E \ / 51.47 ° N 0.009 ° E \ / 51.47 ; 0.009 Blackheath is a heathland area of South East London .