Greater London topographic maps

Average elevation: 28 m

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Average elevation: 54 m

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Average elevation: 89 m

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Average elevation: 74 m

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Average elevation: 9 m

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Average elevation: 91 m

The town centre is about 50 feet (15 m) above sea level on a gravel terrace rising from the River Thames. The north of the town has developed on London Clay and is situated as much as 150 ft (46 m) above sea level. A continuous gentle rise in the eastern suburbs towards Gidea Park and Harold Wood peaks around…

Average elevation: 29 m

Average elevation: 71 m

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Average elevation: 56 m

1804. The Surrey Iron Railway was enhanced by the "Coulsdon Merstham & Godstone Railway". These were horsedrawn railways which carried quarried materials and crops from Coulsdon and Merstham, and returned with fuel, metals and other materials. To maintain a regular elevation at Coulsdon required large changes…

Average elevation: 125 m

After Anderson died, ownership passed to the Nettlefold family and subsequently to Frederick Nettlefold the brother of Joseph Nettlefold and a member of the family that founded the Nettlefolds Ltd. engineering firm which later became GKN. Nettlefold is commemorated, as a result of his charitable works, by a…

Average elevation: 58 m

Average elevation: 8 m

Several apartment developments, for instance Altitude 25 (completed 2010), have been built in recent years, and several more are being built or planned. The construction of Saffron Square, which includes a 43-storey tower, began on Wellesley Road in 2011 and was completed in 2016. Other developments with…

Average elevation: 70 m

Average elevation: 8 m

Average elevation: 9 m

Average elevation: 26 m

Average elevation: 94 m