LL31 postcode district

Postcodes and sectors

281 of the district's 325 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 53.29040, -3.81019, which locates the district, not a building.

Companies registered in LL31

Companies House lists 539 companies with a registered office in LL31; 58 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 LL31

• Conwy
• Wales
• Glanwydden
• Bryn Pydew
• Esgyryn
• Llangwstenin
• Llandudno

Roads filed under LL31

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.

• 6g Road
• Albert Drive
• Albert Drive Gardens
• All Saints Avenue
• Avallon Avenue
• Awel y Castell
• Back York Road
• Beach Road
• Broad Street
• Bron-y-Gaer
• Bron Vardre Avenue
• Bryn-y-Coed
• Bryn Derw
• Bryn Eglwys
• Bryn Ffynnon
• Bryn Gannock
• Bryn Heulog
• Bryn Marl
• Brynpydew Road
• Bwlch Farm Road
• Cae'r Llynen
• Cae Capel
• Cae Coed
• Cae Derw
• Cae Rhos Goed
• Caradoc Road
• Chapelfield
• Cilgwyn
• Clos Belyn
• Coed y Bwlch
• Conway Road
• Conwy Road
• Cwm Estyn
• Cwrt Ysgol Maelgwn
• Cysgod y Castell
• Cystennin Road
• Dalar Aur
• Deganwy Road
• Dol Dderw
• Dolgoed
• Dol Hudol
• Dolydd
• Esgyryn Road
• Ferndale Road
• Ferry Farm Road
• Fford-y-Pentre
• Ffordd 6g
• Ffordd Bwgan
• Ffordd Maelgwn
• Ffordd Maelgwyn
• Ffordd Newydd
• Ffordd Wiga
• Ffordd y Cymry Brenhinol
• Ffrith Road
• Gannock Park
• Gannock Park West
• Gannock Road
• Gardd y Mor
• Gilfach Nant-y-Glyn
• Gilfach Road

Check an address in LL31

Check an address in LL31

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=LL31" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about LL31

What does an LL31 postcode tell you?

That the address lies in the LL31 district of the LL (Llandudno) postcode area, and the place OS Open Names most often lists first for its postcodes is Conwy. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 281 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 LL31

• LL303.1 km
• LL283.2 km
• LL324.1 km
• LL296.8 km
• LL347.2 km
• LL3312.1 km
• LL2214.3 km
• LL2715.8 km
• LL2616.9 km
• LL5819.2 km
• LL5722.1 km
• LL1822.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids