Coordinates: 51°25′35″N 0°06′09″E / 51.4263°N 0.1024°E / 51.4263; 0.1024

Sidcup is a district in South East London in the London Borough of Bexley and small parts of the district in the Royal Borough of Greenwich.Located 11.3 miles (18.2 km) south east of Charing Cross, Sidcup is bordered by the London Boroughs of Greenwich and Bromley and Kent County Council, and whilst now part of Greater London, was once referred to as the gateway to Kent. Sidcup retains Kent as its county reference, (much like most of Outer London with the other Home counties, although small parts of Sidcup correspond with the London postal address such as SE9.

Sidcup has a mixture of large Victorian and Edwardian properties alongside typical 1930s suburbia, primarily owner occupied semi-detached and detached housing. It retains many parks and open spaces hinting at the great estates and large homes which once stood in the area.

The town contains a major hospital, a recently opened sports and leisure centre, as well as two colleges (Bird College and Rose Bruford College). The town centre has a mix of high street stores, independent shops, a modern library, coffee shops, and several pubs. A Waitrose store and Travelodge (budget motel) are due to open in the town in mid 2012, on the site of a former pub, the Black Horse. Sidcup contains a number of districts, some of them once villages in their own right - Blackfen, Foots Cray, Longlands, and Lamorbey.