DT1 postcode district

Postcodes and sectors

793 of the district's 1,162 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 50.71198, -2.44607, which locates the district, not a building.

Companies registered in DT1

Companies House lists 3,060 companies with a registered office in DT1; 1,502 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 DT1

• Dorset
• South West
• Dorchester

Roads filed under DT1

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.

• Abbey Court
• Abbey Place
• Ackerman Road
• Acland Road
• Aconbury Avenue
• Albert Road
• Alexandra Road
• Alexandra Terrace
• Alfred Place
• Alfred Road
• Alice Road
• Alington Avenue
• Alington Road
• Alington Street
• All Saints' Road
• Anning Lane
• Anning Mews
• Antelope Walk
• Apollo Close
• Arbutus Close
• Armada Way
• Arrallus Lane
• Ashington Street
• Ashley Road
• Athelstan Road
• Augustan Close
• Babeny Walk
• Balmoral Crescent
• Barlake Court
• Barnes Way
• Barrack Road
• Barrow Close
• Baynard's Road
• Beechwood Lane
• Bellever Court
• Billingsmoor Lane
• Bindon Abbey Street
• Bindon Lane
• Birdport Road
• Bitter End
• Blagdon Road
• Bowes-Lyon Place
• Bowling Alley Walk
• Braemar Road
• Bridport Road
• Briston Close
• Britannia Way
• Brookhouse Street
• Brutus Close
• Buckingham Way
• Burraton Square
• Buttermarket
• Caernarvon Close
• Cambridge Road
• Cambridge Walk
• Camden Way
• Came View Close
• Came View Road
• Canford Mews
• Canford Street

Check an address in DT1

Check an address in DT1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=DT1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about DT1

What does a DT1 postcode tell you?

That the address lies in the DT1 district of the DT (Dorchester) postcode area, and the place OS Open Names most often lists first for its postcodes is Dorchester. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 793 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 DT1

• DT24.2 km
• DT37.9 km
• DT411.5 km
• DT518.2 km
• BH2021.1 km
• DT623.4 km
• DT1124.9 km
• DT825.1 km
• DT926.0 km
• DT1026.3 km
• BH1628.2 km
• BA2028.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids