Borehamwood is a town which grew up in the civil parish of Elstree after the Midland Railway opened in the 1860s. Elstree station was built over a mile from the village in open countryside and the new town of Borehamwood grew around the station. Elstree Film Studios were also built next to the station, such that Borehamwood's best known establishment and its railway station both take their name from the neighbouring village. Borehamwood has never been a separate civil parish, but the old parish of Elstree has now been renamed Elstree and Borehamwood in recognition of the fact that Borehamwood is now rather larger than its older neighbour. The railway station has also been renamed Elstree and Borehamwood.
Borehamwood (originally spelt Boreham Wood), is a town in southern Hertfordshire. It is an outlying suburb of London, situated 12 miles (19 km) from Charing Cross (a common point in central London from which distances are measured). It is within the present civil parish of Elstree and Borehamwood (formerly Elstree parish) and within the London commuter belt. In the 2011 UK census Borehamwood had a population of 31,065 (more than six times the size of the Elstree ward in the current civil parish).
For more information, see the EN Wikipedia article Borehamwood. Especially the section "History".