DL4 postcode district

Postcodes and sectors

302 of the district's 365 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 54.63025, -1.64438, which locates the district, not a building.

Companies registered in DL4

Companies House lists 366 companies with a registered office in DL4; none of them at an address 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 DL4

• North East
• County Durham
• Shildon
• Darlington
• Old Eldon

Roads filed under DL4

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.

• Adams Court
• Adamson Street
• Adelaide Bank
• Adelaide Street
• Albert Street
• Albion Avenue
• Alexandra Street
• All Saints' Road
• Alma Road
• Ash Grove
• Association Street
• Auckland Terrace
• Auckland Wynd
• Baysdale Gardens
• Beresford Street
• Birch Avenue
• Blake Street
• Bluebell Walk
• Bouch Street
• Braithwaite Street
• Brown Street
• Brusselton Lane
• Burke Street
• Burnie Gardens
• Byerley Road
• Cedar Grove
• Celandine Way
• Central Parade
• Chapel Street
• Cheapside
• Chestnut Close
• Church Street
• Clarendon Court
• Cleveland Avenue
• Co-Operative Street
• College Street
• Coronation Avenue
• Cottage Road
• Cross Street
• Dale Grove
• Dale Road
• Dalton Crescent
• Datton Close
• Dean Close
• Dean Gardens
• Dean Street
• Dent Street
• Diamond Street
• Drummond Way
• Drybourne Avenue
• Drybourne Park
• Dunelm Grove
• East View Terrace
• Eldon Bank Top
• Elm Drive
• Elmfield Terrace
• Elm Road
• Eskdale Gardens
• Farndale Gardens
• Firtree

Check an address in DL4

Check an address in DL4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=DL4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about DL4

What does a DL4 postcode tell you?

That the address lies in the DL4 district of the DL (Darlington) postcode area, and the place OS Open Names most often lists first for its postcodes is Shildon. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 302 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 DL4

• DL143.9 km
• DL54.5 km
• DL168.0 km
• DL178.7 km
• DL1510.5 km
• DL211.7 km
• DL311.8 km
• DL113.0 km
• TS2114.0 km
• TS2917.0 km
• DH117.6 km
• DH717.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids