WD17 postcode district

Postcodes and sectors

572 of the district's 920 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 51.66393, -0.40557, which locates the district, not a building.

Companies registered in WD17

Companies House lists 6,396 companies with a registered office in WD17; 4,116 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 WD17

• Watford
• Hertfordshire
• Eastern

Roads filed under WD17

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.

• Albert Road North
• Albert Road South
• Alexandra Mews
• Alexandra Road
• Armand Close
• Baldwin Road
• Bay Tree Walk
• Beechen Grove
• Beechpark Way
• Bellamy Close
• Bellmount Wood Avenue
• Berceau Walk
• Birchmead
• Birch Tree Walk
• Biskra
• Blackley Close
• Brewery Mews
• Bridge Place
• Bridle Path
• Bromet Close
• Broom Grove
• Burrow Close
• Canterbury Road
• Capelvere Walk
• Carey Place
• Cassiobury Drive
• Church Road
• Clarendon Road
• Cole Road
• Colnhurst Road
• Coningesby Drive
• Cottage Close
• Courtlands Drive
• Cross Street
• Crown Passage
• Dalton Way
• Dellfield Close
• Denewood Close
• Denewood Mews
• Denmark Street
• Derby Road
• Devereux Drive
• De Vere Walk
• Dowry Walk
• Duke Street
• Earl Street
• Ebury Road
• Elliot Road
• Elton Park
• Essex Road
• Estcourt Road
• Fairlawns
• Fairview Drive
• Fox Alley
• Franklin Road
• Frogmore Avenue
• Garden Close
• Gartlet Road
• Gaumont Approach
• Gladstone Road

Check an address in WD17

Check an address in WD17

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=WD17" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about WD17

What does a WD17 postcode tell you?

That the address lies in the WD17 district of the WD (Watford) postcode area, and the place OS Open Names most often lists first for its postcodes is Watford. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 572 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 WD17

• WD241.2 km
• WD181.8 km
• WD252.9 km
• WD193.8 km
• WD233.9 km
• WD54.4 km
• WD35.6 km
• HA65.9 km
• WD45.9 km
• WD77.1 km
• HA57.8 km
• AL27.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids