The A404 runs through the district known locally as Brentfield and Hillside, while to the south are railway tracks and to the west is the North Circular Road along with Stonebridge Park station.

However, the passenger service on the line closed for a second and final time in 1902, but only after a sustained protest campaign by local people.

Sub-division of many of the large houses was carried out and Stonebridge became a low-income area, which continued after high-rise comprehensive redevelopment, mostly built in a single architectural style and called the 'Stonebridge Estate', in the 1960s and 1970s.

[5] Some improvements in the street scene happened in the early 1990s, as a result of the 'Harlesden City Challenge' award of government money to the area, which was by now regarded as one of the most troubled parts of London.

In April 1994, The Independent newspaper highlighted an unemployment rate of around 25% (compared to a national average of around 10% at the time), as well as widespread drug abuse, burglaries and violence.

New development on Hillside, part of the A404 Harrow Road through the area, includes private ownership of flats above offices, and a health centre.

Neighbouring Harlesden witnessed a huge increase in shootings from around 1999, becoming the highest murder rated district nationwide by 2001.

[11] And in 2010 former Millwall footballer Gavin Grant was one of three men found guilty of shooting dead Leon Labastide on a street in Stonebridge: Stephen Batten QC, prosecuting, said the case reflected a "law of the jungle" culture of shootings and drug dealing on the estate.

[15] Rapper from the USG Crew, Smalls, was murdered outside a chicken shop near Stonebridge Park station on 5 July 2019.

[16] On 4 June 2020, a suspected member of USG travelled to Harlesden, Church Road and performed a quadruple shooting, in retaliation for a previous incident.