WD4 postcode district
WD4, in the WD (Watford) postcode area, has 373 live and 207 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 148 roads under it.
| postcode area | WD (Watford) |
|---|---|
| live postcodes | 373 |
| terminated postcodes | 207 |
| sectors | 3 |
| roads listed | 148 |
| companies registered | 1,572 |
| centroid | 51.70649, -0.45687 |
| directory release | 2026-08 |
Postcodes and sectors
373 of the district's 580 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 51.70649, -0.45687, which locates the district, not a building.
| sector | live | terminated |
|---|---|---|
| WD4 4 | 11 | 59 |
| WD4 8 | 221 | 103 |
| WD4 9 | 141 | 45 |
Companies registered in WD4
Companies House lists 1,572 companies with a registered office in WD4; 39 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 WD4
- Hertfordshire
- Eastern
- Dacorum
- Kings Langley
- Three Rivers
- Chipperfield
- Abbots Langley
- Rucklers Lane
- Watford
- Bucks Hill
- Tower Hill
- Hunton Bridge
- Whippendell Bottom
- Commonwood
- Bulstrode
- Hemel Hempstead
Roads filed under WD4
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.
- Abbots Rise
- Abbots View
- Alexandra Road
- Archer Close
- Avenue Approach
- Barnes Lane
- Barnes Rise
- Barnsway
- Beechfield
- Belgrave Drive
- Belham Road
- Blackwell Road
- Bottom Lane
- Bridge Road
- Bucks Hill
- Bulstrode Close
- Bulstrode Lane
- Castile Gardens
- Chantry Close
- Chantry View
- Chapel Croft
- Chestnut Close
- Chipperfield Road
- Church Lane
- Common Lane
- Coniston Road
- Courtaulds
- Croft Close
- Croft End Road
- Croft Field
- Croft Lane
- Croft Meadow
- Dunny Lane
- Edmund Mews
- Egg Farm Lane
- Essex Lane
- Fairlands Way
- Fairydell Close
- Fernhills
- Fisher Close
- Five Acres
- Forge Close
- Friars Way
- Gade Valley Close
- Gade View Gardens
- Gallows Hill
- Godman Mews
- Graham Taylor Avenue
- Grand Union Way
- Great Park
- Grosvenor Avenue
- Grosvenor Square
- Gypsy Lane
- Hamilton Road
- Harthall Lane
- Havelock Road
- Havensfield
- Hempstead Road
- Hemsley Road
- Highfield
all 148 roads
- High Street
- Hilltop Farm
- Hilltop Road
- Home Park Mill Link
- Hunton Bridge Hill
- Hunton Close
- Jubilee Walk
- Kingfisher Lure
- Kingley Park
- Kings Close
- Kings Lane
- Kings Meadow
- Kings Mews
- Lady Meadow
- Lakeside Avenue
- Langleybury Fields
- Langleybury Lane
- Langley Crescent
- Langley Hill
- Langley Hill Close
- Langley Lodge Lane
- Langley Road
- Lauderdale Road
- Le Corte Close
- Little Windmill Hill
- Love Lane
- Marwood Close
- Meadowbank
- Meadow Way
- Megg Lane
- Mill Lane
- New Road
- Nunfield
- Nursery Gardens
- Old House Lane
- Old Mill Road
- Osbourne Avenue
- Ovaltine Drive
- Palace Close
- Primrose Hill
- Queen Street
- Quickmoor Lane
- Railway Terrace
- Rectory Farm
- Rectory Lane
- Regent Close
- Rembrandt Mews
- Riverside Close
- Rockcliffe Avenue
- Roman Gardens
- Roundwood
- Rucklers Lane
- Saddlers Walk
- Sandy Close
- Scatterdells Lane
- Scatterdells Park
- Seabrook Road
- Shaftsbury Way
- Sheppey's Lane
- Station Footpath
- Station Road
- Stoney Lane
- The Common
- The Glebe
- The Maltings
- The Nap
- The Orchard
- The Street
- The Warren
- Toms Lane
- Tooveys Mill Close
- Tower Hill
- Tulip Close
- Tylers Close
- Upper Highway
- Vicarage Lane
- Wander Wharf
- Water Lane
- Waterside
- Waterside Court
- Watford Road
- Wayside
- Wharf Way
- Whitlars Drive
- Willow Edge
- Windmill Hill
- Woodlands Drive
- York Close
Check an address in WD4
The same road list through the API, from the outward code alone:
curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=WD4" \ -H "Authorization: Bearer $SPAW_KEY"
Common questions about WD4
- What does a WD4 postcode tell you?
- That the address lies in the WD4 district of the WD (Watford) postcode area, and the place OS Open Names most often lists first for its postcodes is Kings Langley. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 373 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 WD4
- WD52.8 km
- HP33.4 km
- WD255.2 km
- WD245.4 km
- WD175.9 km
- HP16.0 km
- HP26.4 km
- WD36.9 km
- WD187.0 km
- AL28.5 km
- WD199.6 km
- WD239.6 km
- Every district
- How a British address is written
- Check any address
distance between the districts' centroids
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