Neasden /ˈniːzdən/ is an area in northwest London, United Kingdom. It forms part of the London Borough of Brent.
The area was recorded as Neasdun in AD 939 and the name is derived from the Old English nēos = 'nose' and dūn = 'hill'. It means 'the nose-shaped hill' referring to a well-defined landmark of this area. In 1750, it was known as Needsden and the present spelling appeared at a later date.
Neasden was a countryside hamlet on the western end of the Dollis Hill ridge. The land was owned by St. Paul's Cathedral. In medieval times, the village consisted only of several small buildings around the green near the site of the present Neasden roundabout.
In the 15th–17th century the Roberts family were the major landowners in the area. Thomas Roberts erected Neasden House (on the site of the modern Clifford Court) in the reign of Henry VIII. In 1651 Sir William Roberts bought confiscated church lands. After the Restoration the estates were returned to the ownership of the Church but were leased out to the Roberts family. Sir William improved Neasden House and by 1664 it was one of the largest houses in the Willesden parish.
During the 18th century the Nicoll family replaced the Roberts as the dominant family in Neasden. In the 19th century these farmers and moneyers at the Royal Mint wholly owned Neasden House and much of the land in the area.
Neasden was no more than a ‘retired hamlet’ when enclosure was completed in 1823. At this time there were six cottages, four larger houses or farms, a public house and a smithy, grouped around the green. The dwellings include The Grove, which had been bought by a London solicitor named James Hall, and its former outbuilding, which Hall had converted into a house that became known as The Grange.
The Welsh Harp reservoir was completed in 1835 and breached in 1841 with fatalities. It had a dramatic effect on the landscape as the damming of the River Brent put many fields and meadows underwater.