TR4 postcode district

Postcodes and sectors

524 of the district's 592 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 50.28652, -5.13765, which locates the district, not a building.

Companies registered in TR4

Companies House lists 1,209 companies with a registered office in TR4; 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 TR4

• Cornwall
• South West
• Chacewater
• Goonhavern
• Mount Hawke
• Porthtowan
• St Erme
• Shortlanesend
• Blackwater
• Trispen
• Frogpool
• Zelah
• Threemilestone
• Bissoe
• Perranwell
• Rose
• Coombe
• Twelveheads
• Perranzabuloe
• Gollawater
• Towan Cross
• Cusgarne
• Helston Water
• Roseworthy

Roads filed under TR4

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.

• Alwin Close
• Ashley Road
• Atlantic Way
• Bank Terrace
• Banns Road
• Beach Road
• Beachside Court
• Beacon View
• Bissoe Hill
• Boscawen Road
• Bosvean Road
• Bridge Road
• Broad View
• Buckingham Nip
• Buttercup Road
• Carriage Parc
• Carvinack Meadows
• Chacewater Hill
• Chancery Close
• Chapel Hill
• Chapel Meadow
• Charlotte Close
• Chellean Vean
• Cherry Tree Close
• Church Hill
• Church Lane
• Church Road
• Coast Road
• Coombe Lane
• Coosebean Lane
• Cusgarne Hill
• East Bridge
• Eastcliff Avenue No 1
• Eastcliff Avenue No 2
• Eastcliff Avenue No 3
• Eglos Road
• Ellen Close
• Ennis Close
• Falmouth Road
• Fir Close
• Fordh Langarth
• Fore Street
• Forge Way
• Forthvean Crescent
• Forthvean Road
• Glendale Crescent
• Goonhilly Close
• Gover Close
• Goyne's Field
• Great Close Road
• Grove Lowarth
• Gwel an Woon
• Gwel Stenek
• Halt Road
• Hawthorn Close
• Henley Close
• Henley Crescent
• Henley Drive
• Henver Lane
• Hermes Avenue

Check an address in TR4

Check an address in TR4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=TR4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about TR4

What does a TR4 postcode tell you?

That the address lies in the TR4 district of the TR (Truro) postcode area, and the place OS Open Names most often lists first for its postcodes is Cornwall. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 524 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 TR4

• TR55.0 km
• TR66.3 km
• TR16.5 km
• TR37.9 km
• TR168.4 km
• TR159.3 km
• TR1013.3 km
• TR213.8 km
• TR1414.1 km
• TR814.5 km
• TR714.9 km
• TR1115.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids