WD23 postcode district

Postcodes and sectors

769 of the district's 1,186 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 51.64532, -0.35798, which locates the district, not a building.

Companies registered in WD23

Companies House lists 2,386 companies with a registered office in WD23; 406 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 WD23

• Hertfordshire
• Eastern
• Hertsmere
• Bushey
• Watford
• Harrow
• Greater London
• London

Roads filed under WD23

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.

• Abercorn Dell
• Albany Close
• Aldenham Road
• Alder Close
• Allard Crescent
• Arden Close
• Arranmore Court
• Arthur Street
• Ashdown Road
• Ashfield Avenue
• Ash Hill Close
• Ashlyn Close
• Aspen Place
• Aston Close
• Atkinson Close
• Avenue Rise
• Baird Close
• Barley Close
• Beamish Drive
• Beechcroft Road
• Belle Vue Lane
• Belmont Road
• Bendysh Road
• Bennetts Field
• Bournehall Avenue
• Bournehall Lane
• Bournehall Road
• Bournemead
• Bourne Road
• Brambling Close
• Bridgewater Way
• Broadfield Court
• Brooke Close
• Brooke Way
• Burchell Court
• Bushell Green
• Bushey Grove Road
• Bushey Hall Drive
• Bushey Hall Road
• Bushey Mill Lane
• Caldecote Gardens
• Caldecote Lane
• California Lane
• Campbell Close
• Caspian Drive
• Castle Close
• Catsey Lane
• Catsey Wood
• Cedar Crescent
• Chartridge Close
• Chestnut Rise
• Cheviot Close
• Chiltern Avenue
• Chiltern Close
• Church Walk
• Clapgate Road
• Clarence Close
• Clarks Mead
• Claybury
• Clay Lane

Check an address in WD23

Check an address in WD23

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=WD23" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about WD23

What does a WD23 postcode tell you?

That the address lies in the WD23 district of the WD (Watford) postcode area, and the place OS Open Names most often lists first for its postcodes is Bushey. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 769 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 WD23

• WD192.8 km
• WD173.9 km
• WD183.9 km
• WD244.2 km
• HA75.0 km
• WD255.1 km
• WD75.7 km
• HA65.8 km
• WD65.8 km
• HA55.9 km
• HA36.3 km
• HA86.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids