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Location Map ( geo)
Cameraicon.png View gallery (6)
From:  Hanger Lane Gyratory (TQ183827)
To:  Greenhill (TQ155885)
Via:  Roxeth
Distance:  5.1 miles (8.2 km)
Meets:  A406, A40, A4089, A4090, A404, A4127, A312, A404, A409
Former Number(s):  A405, B457
Primary Destinations
Highway Authorities

Brent  • Ealing  • Harrow

Traditional Counties


Route outline (key)
A4005 Hanger Lane - Sudbury
(A404) Sudbury
A4005 Sudbury - Roxeth
A4005 Harrow on the Hill - Greenhill
(A312, A404) Roxeth - Harrow
A4005 Harrow - Greenhill
Hanger Lane Gyratory

The A4005 is a roundabout route in west London.

The road starts on the Hanger Lane Gyratory between the westbound slip road of the A40 and the northbound A406 and keeps the name of Hanger Lane, the name that the North Circular Road had in its Southern section, because originally both were part of the A405.

The A4005 is a fairly good quality road, although there are quite a few traffic lights. It changes its name to Ealing Road after the B456 Alperton Road slips in from the left. This road is a nice slip-lane off the A40 for those who wish to avoid the gyratory. Then the A4089 shoots off to the right at Alperton, taking the name of Ealing Road, and the A4005 becomes Bridgewater Road. It used to take a 40mph speed limit at this point but a few years ago this was reduced to 30mph. The A4090 Whitton Avenue East slips off to the left, after which the road continues to the roundabout near Sudbury Town station with Barham Park on the corner, meeting the A404 Harrow Road.

This is actually the first time that the A404 takes one of its many unusual turns, although the name of Harrow Road stays with it. However if you follow this road we soon reach another roundabout where the A404 heads along Watford Road and Harrow Road slips off to the left. At this point the A4005 number re-appears (although in 1922 this was its starting point) on Harrow Road itself continuing north-west towards Harrow (where else?). It crosses the A4127 Greenford Road / Sudbury Court Drive and becomes Sudbury Hill near the Clementine Churchill Hospital before changing its name to London Road (having reached near enough to Harrow).

The original route of the A4005 through Harrow

For the actual Harrow school, bear right at the bend to remain on London Road. This is the original route of the A4005, which followed Peterborough Road and Station Road to end on the A409 in Greenhill. That was downgraded in the 1990s and so the A4005 now bends to the left along Roxeth Hill (originally the B457) before meeting the A312 at Roxeth.

The A4005 still has a yearning for its original northern end in Greenhill and so it now heads northwards into Harrow along a useless multiplex with the A312 before following the A404 between two roundabouts over the railway line and then reappearing as Greenhill Way. This bypasses Harrow to the north and ends on the A409 in Greenhill, about a hundred yards north of its original terminus.

Related Pictures
View gallery (6)
Sudbury Hill, Harrow - Geograph - 2280087.jpgSudbury Hill, Harrow - Geograph - 2280075.jpgBridgewater Road, Sudbury (C) David Howard - Geograph - 1108930.jpg"Cycle Crossing Only" across Hanger Lane... (C) David Hawgood - Geograph - 2573444.jpgRoxeth Hill, Harrow-on the -Hill (C) David Howard - Geograph - 1083261.jpg
Other nearby roads
A40 • A312 • A404 • A409 • A410 • A4006 • A4008 • A4090 • A4125 • A4127 • A4140 • B358 • B457 • B458 • B459 • B460 • E13 • Longest Lane • M1 • M16 • Ringway 3
A4000 • A4001 • A4002 • A4003 • A4004 • A4005 • A4006 • A4007 • A4008 • A4009 • A4010 • A4011 • A4012 • A4013 • A4014 • A4015 • A4016 • A4017 • A4018 • A4019
A4020 • A4021 • A4022 • A4023 • A4024 • A4025 • A4026 • A4027 • A4028 • A4029 • A4030 • A4031 • A4032 • A4033 • A4034 • A4035 • A4036 • A4037 • A4038 • A4039
A4040 • A4041 • A4042 • A4043 • A4044 • A4045 • A4046 • A4047 • A4048 • A4049 • A4050 • A4051 • A4052 • A4053 • A4054 • A4055 • A4056 • A4057 • A4058 • A4059
A4060 • A4061 • A4062 • A4063 • A4064 • A4065 • A4066 • A4067 • A4068 • A4069 • A4070 • A4071 • A4072 • A4073 • A4074 • A4075 • A4076 • A4077 • A4078 • A4079
A4080 • A4081 • A4082 • A4083 • A4084 • A4085 • A4086 • A4087 • A4088 • A4089 • A4090 • A4091 • A4092 • A4093 • A4094 • A4095 • A4096 • A4097 • A4098 • A4099
Earlier iterations: A4008 • A4013 • A4015 • A4020 • A4032 • A4040 • A4041 • A4044 • A4045 • A4047 • A4050 • A4051 • A4052 • A4053 • A4057
A4060 • A4062 • A4066 • A4068 • A4069 • A4071 • A4072 • A4073 • A4074 • A4080 • A4082 • A4084 • A4085(N) • A4085(S) • A4087 • A4090

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