LL59 postcode district

Postcodes and sectors

201 of the district's 237 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 53.23546, -4.16085, which locates the district, not a building.

Companies registered in LL59

Companies House lists 257 companies with a registered office in LL59; 31 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 LL59

• Wales
• Sir Ynys Mon
• Isle of Anglesey
• Porthaethwy
• Menai Bridge
• Llandegfan
• Hen Bentref Llandegfan
• Llansadwrn
• Pen-y-garnedd
• Bangor
• Gwynedd

Roads filed under LL59

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.

• Allt Bryn Mel
• Allt Cichle
• Askew Street
• Beach Road
• Beaumaris Road
• Belgian Promenade
• Bridge Street
• Bro Dawel
• Bro Helen Rowlands
• Bro Llewelyn
• Bron-y-Felin
• Bron Haul
• Brynafon
• Bryn Awelon
• Bryniau Duon
• Bryn Teg
• Bryn Teg Lane
• Cadnant Road
• Cae Ffynnon
• Cae Gweithdy
• Cae Nicholas
• Caergelach
• Cambria Road
• Carreg Felin
• Causeway
• Chapel Street
• Cil-Bedlam
• Cil y Graig
• Coronation Road
• Dale Street
• Derwen Deg
• Dew Street
• Druid Road
• Estyniad i Caergelach
• Ffordd Beaumaris
• Ffordd Cadnant
• Ffordd Caergybi
• Ffordd Cambria
• Ffordd Cynan
• Ffordd Penclip
• Ffordd Penmynydd
• Ffordd Pentraeth
• Ffordd Telford
• Ffordd Tysilio
• Ffordd y Coleg
• Ffordd y Ffair
• Ffordd y Goron
• Ffordd yr Eglwys
• Fford Mona
• From Farm
• Fron Deg
• Fron Heulog
• Garth Mostyn
• Gerddi Hafod Lon
• Gilfach Goch
• Gilfach Wen
• Glan y Felin
• Glyn Estate
• Gors Goch
• Gwel Eryri

Check an address in LL59

Check an address in LL59

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=LL59" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about LL59

What does an LL59 postcode tell you?

That the address lies in the LL59 district of the LL (Llandudno) postcode area, and the place OS Open Names most often lists first for its postcodes is Porthaethwy. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 201 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 LL59

• LL574.6 km
• LL566.4 km
• LL586.6 km
• LL756.7 km
• LL607.9 km
• LL618.1 km
• LL768.9 km
• LL7410.4 km
• LL7710.4 km
• LL7811.4 km
• LL5511.6 km
• LL3312.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids