NW4 postcode district

Postcodes and sectors

758 of the district's 1,547 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.58734, -0.22423, which locates the district, not a building.

Companies registered in NW4

Companies House lists 6,456 companies with a registered office in NW4; 2,668 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for NW4

• Barnet
• Greater London
• London
• Hendon

Roads filed under NW4

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Aerodrome Road
• Albert Road
• Alderton Crescent
• Alderton Way
• Alexandra Road
• Algernon Road
• Allington Road
• Alwyn Gardens
• Aprey Gardens
• Ashley Close
• Ashley Lane
• Audley Road
• Babington Road
• Barford Close
• Barnet Bypass
• Beaufort Gardens
• Belle Vue Road
• Bell Lane
• Bertram Road
• Bethel Close
• Boltmore Close
• Bonville Gardens
• Boyne Avenue
• Brampton Grove
• Brampton Lane
• Brent Cross Flyover
• Brent Cross Gardens
• Brent Green
• Brent Park Road
• Brent Street
• Brinsdale Road
• Burroughs Gardens
• Canberra Close
• Carol Close
• Cedars Close
• Century Close
• Champions Way
• Chapel Walk
• Chatsworth Avenue
• Chatsworth Close
• Cheyne Walk
• Church End
• Church Road
• Church Terrace
• Church Walk
• Clarendon Gardens
• Colindeep Gardens
• Colindeep Lane
• Cooper Road
• Corrigan Close
• Cowley Place
• Crespigny Road
• Cumberland Gardens
• Dallas Road
• Danescroft Avenue
• Danescroft Gardens
• Daniel Place
• Dartmouth Road
• Denehurst Gardens
• Downage

Check an address in NW4

Check an address in NW4

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=NW4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about NW4

What does an NW4 postcode tell you?

That the address lies in the NW4 district of the NW (North West London) postcode area, and the place OS Open Names most often lists first for its postcodes is Hendon. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 758 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest NW4

• NW112.1 km
• NW92.1 km
• N32.5 km
• NW73.1 km
• NW23.2 km
• N23.8 km
• HA84.3 km
• N124.4 km
• HA95.1 km
• NW35.3 km
• NW65.4 km
• NW105.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids