CF15 postcode district

Postcodes and sectors

513 of the district's 660 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 51.53297, -3.27171, which locates the district, not a building.

Companies registered in CF15

Companies House lists 1,411 companies with a registered office in CF15; 300 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 CF15

• Wales
• Caerdydd
• Cardiff
• Rhondda Cynon Taf
• Ffynnon Taf
• Taff's Well
• Gwaelod-y-garth
• Pentyrch
• Creigiau
• Tongwynlais
• Nantgarw
• Caerffili
• Caerphilly
• Groes-wen
• Capel Llanilltern
• Soar

Roads filed under CF15

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 Close
• Ael-y-Bryn
• Anchor Street
• Arudur Hen
• Ash Tree Close
• Banc yr Afon
• Barnfield Drive
• Beech Court
• Beech Tree Close
• Beechwood Road
• Berthlwyd
• Birch Court
• Birch Hill
• Blaen-y-Coed
• Brodeg
• Bronhaul
• Bronllwyn
• Brummell Drive
• Bryn-yr-Eglwys
• Brynau Road
• Bryn Briallu
• Bryn Calch
• Bryn Castell
• Bryn Coch
• Bryncoed
• Bryn Derwen
• Bryn Golwg
• Brynhyfryd
• Bryn Rhosyn
• Bryn Siriol
• Burges Close
• Bute Street
• Cae'r Graig
• Cae Gwyrdd
• Cae Lewis
• Caerau Lane
• Caer Idwen
• Caerphilly Road
• Cae Sgubor
• Cardiff Road
• Castell Coch View
• Castle Close
• Castle Road
• Castle Street
• Castle View
• Catherine Drive
• Cefn Bychan
• Cefn Coch
• Cefn Coed
• Cefn Llan
• Cefn Penuel
• Cemetery Road
• Chapel Road
• Chartwell Court
• Chestnut Tree Close
• Church Lane
• Church Road
• Church Street
• Cilfedw
• Clos Brynmellyn

Check an address in CF15

Check an address in CF15

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CF15" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CF15

What does a CF15 postcode tell you?

That the address lies in the CF15 district of the CF (Cardiff) postcode area, and the place OS Open Names most often lists first for its postcodes is Cardiff. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 513 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 CF15

• CF144.9 km
• CF385.2 km
• CF55.8 km
• CF837.0 km
• CF238.3 km
• CF118.6 km
• CF378.9 km
• CF249.1 km
• CF729.2 km
• CF109.4 km
• CF311.2 km
• CF6412.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids