Chinbrook is an area of south east London, England, located 14 km (8.7 mi) southeast of Charing Cross in the London Borough of Lewisham. Chinbrook lies between Grove Park and Mottingham, approximately half a mile east of Grove Park centre and is generally considered part of Grove Park.Most of Chinbrook including the main crossroads falls within the London Borough of Lewisham and under the postcode district SE12, although immediately northeast from the crossroads is the border with the London Borough of Bromley and the SE9 postcode district.