LL54 postcode district

Postcodes and sectors

522 of the district's 579 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 53.05808, -4.28747, which locates the district, not a building.

Companies registered in LL54

Companies House lists 341 companies with a registered office in LL54; 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 LL54

• Gwynedd
• Wales
• Penygroes
• Talysarn
• Groeslon
• Trefor
• Rhostryfan
• Rhosgadfan
• Carmel
• Llanaelhaearn
• Y Fron
• Llandwrog
• Llanllyfni
• Clynnog Fawr
• Dinas
• Nebo
• Nantlle
• Pontllyfni
• Cilgwyn
• Gyrn Goch
• Bethesda Bach
• Bontnewydd
• Rhyd-Ddu
• Rhos Isaf

Roads filed under LL54

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.

• Aber Foreshore Road
• Allt Doli
• Baptist Street
• Beach Road
• Beddgwenan
• Bro Celyn
• Bro Gilbert
• Bro Llwyndu
• Bryncelyn Road
• Bryn Glas
• Bryn Llwyd
• Bryn Rhedyw
• Cae'r Eglwys
• Cae Bryn
• Cae Capel Bach
• Cae Catrin
• Caellyn
• Cae Magw
• Cae Melan
• Cae Sarn
• Cavour Street
• Cefn Dyffryn
• Chapel Street
• Church Road
• Clynnog Road
• Coed Heleln Road
• Coedmadog Road
• County Road
• Croes-Higol Road
• Cross Street
• Dol Elen
• Eifl Road
• Ffordd-y-Brenin
• Ffordd-y-Sir
• Ffordd Cae Duon
• Ffordd Cavour
• Ffordd Clynnog
• Ffordd Coed Helen
• Ffordd Cors y Llyn
• Ffordd Groes
• Ffordd Haearn Bach
• Ffordd Iago
• Ffordd Llwyndu
• Ffordd Nasareth
• Ffordd Nebo
• Ffordd Pont Lloc
• Ffordd Rhedyw
• Ffordd Rhiwlas
• Ffordd Ty Cerrig
• Ffordd y Llyn
• Ffordd y Parc
• Ffordd yr Aber
• Ffordd yr Eglwys
• Ffordd yr Orsaf
• Ffrwd Cae Du
• Fron Deg
• Garth Estate
• Gerddi Benar
• Gernant
• Ger y Llan

Check an address in LL54

Check an address in LL54

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=LL54" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about LL54

What does an LL54 postcode tell you?

That the address lies in the LL54 district of the LL (Llandudno) postcode area, and the place OS Open Names most often lists first for its postcodes is Gwynedd. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 522 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 LL54

• LL519.9 km
• LL5510.1 km
• LL5615.0 km
• LL5215.1 km
• LL6115.4 km
• LL4917.5 km
• LL6017.5 km
• LL6218.2 km
• LL4819.9 km
• LL5720.3 km
• LL5921.5 km
• LL6321.7 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids