LL51 9 postcode sector in the LL51 district

LL51 9 is a sector of the LL51 district: every postcode that starts LL51 9. It has 45 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the LL51 9 sector, and which are new since 2020

Map of every postcode in the LL51 9 sector, by new since 2020 Of the 45 postcodes in the LL51 9 sector that ONS places, 1 are new since 2020 and 44 were in use before 2020. Places named: Dolbenmaen, Clynnog. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A487 LL51 9AJ: before 2020LL51 9AQ: before 2020LL51 9AX: before 2020LL51 9AZ: before 2020LL51 9BQ: before 2020LL51 9DJ: before 2020LL51 9DQ: before 2020LL51 9DX: before 2020LL51 9DZ: before 2020LL51 9EJ: before 2020LL51 9EQ: before 2020LL51 9EX: before 2020LL51 9EZ: before 2020LL51 9HX: before 2020LL51 9HZ: before 2020LL51 9LJ: before 2020LL51 9LQ: before 2020LL51 9LX: before 2020LL51 9LZ: before 2020LL51 9NJ: before 2020LL51 9NQ: before 2020LL51 9PJ: before 2020LL51 9PQ: before 2020LL51 9RJ: before 2020LL51 9RQ: before 2020LL51 9RZ: before 2020LL51 9SZ: before 2020LL51 9TJ: before 2020LL51 9TQ: before 2020LL51 9TX: before 2020LL51 9TZ: before 2020LL51 9UJ: before 2020LL51 9UQ: before 2020LL51 9UX: before 2020LL51 9YT: before 2020LL51 9YU: before 2020LL51 9YY: before 2020LL51 9AB: new since 2020 DolbenmaenClynnog Map of every postcode in the LL51 9 sector, by new since 2020 Of the 45 postcodes in the LL51 9 sector that ONS places, 1 are new since 2020 and 44 were in use before 2020. Places named: Dolbenmaen, Clynnog. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. DolbenmaenClynnog
  • New since 2020: 1
  • In use before 2020: 44

Of the 45 postcodes in the LL51 9 sector that ONS places, 1 are new since 2020 and 44 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The newest postcode

LL51 9ABApril 2023

What do homes sell for in LL51 9?

HM Land Registry records 4 sales of homes in LL51 9 in the 12 months to August 2026: too few to give a typical price.

  • Detached 1 sale, too few to price
  • Semi-detached 1 sale, too few to price
  • Terraced 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start LL51 9. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in LL51 9

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

LL51 9ABLL51 9AJLL51 9ALLL51 9AQLL51 9AXLL51 9AZLL51 9BQLL51 9DJLL51 9DQLL51 9DXLL51 9DZLL51 9EJLL51 9EQLL51 9EXLL51 9EZLL51 9HXLL51 9HZLL51 9LJLL51 9LQLL51 9LXLL51 9LZLL51 9NJLL51 9NQLL51 9NXLL51 9NZLL51 9PJLL51 9PQLL51 9RJLL51 9RQLL51 9RXLL51 9RZLL51 9SJLL51 9SQLL51 9SXLL51 9SZLL51 9TJLL51 9TQLL51 9TXLL51 9TZLL51 9UJLL51 9UQLL51 9UXLL51 9YTLL51 9YULL51 9YY

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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