Denmark Hill is an area and road in Camberwell, in the London Borough of Southwark. The road forms part of the A215; north of Camberwell Green it becomes Camberwell Road; south of Red Post Hill it becomes Herne Hill. Its postcode is SE5. Nearby streets whose names refer to different aspects of the same topographical feature include Dog Kennel Hill, Champion Hill and Red Post Hill. It marks the edge of the Thames valley plain in this area — from here to the river the land is flat. There are good views across central London from vantage points (e.g. top storey windows) on the top of the hill to the north and neighbouring Dulwich to the south. On a clear day one can read the time on the Big Ben clockface.
More informatiom on the Wikipedia page .