L23 3 postcode sector in the L23 district

L23 3 is a sector of the L23 district: every postcode that starts L23 3. It has 51 postcodes in use, 3 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

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

Every postcode in the L23 3 sector, and which are new since 2020

Map of every postcode in the L23 3 sector, by new since 2020 Of the 51 postcodes in the L23 3 sector that ONS places, 1 are new since 2020 and 50 were in use before 2020. Places named: Crosby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A565 L23 3AD: before 2020L23 3AE: before 2020L23 3AF: before 2020L23 3AG: before 2020L23 3AH: before 2020L23 3AJ: before 2020L23 3AL: before 2020L23 3AN: before 2020L23 3AP: before 2020L23 3AQ: before 2020L23 3AR: before 2020L23 3AS: before 2020L23 3AT: before 2020L23 3AW: before 2020L23 3AX: before 2020L23 3AY: before 2020L23 3AZ: before 2020L23 3BA: before 2020L23 3BB: before 2020L23 3BD: before 2020L23 3BE: before 2020L23 3BG: before 2020L23 3BJ: before 2020L23 3BN: before 2020L23 3BP: before 2020L23 3BQ: before 2020L23 3BR: before 2020L23 3BS: before 2020L23 3BT: before 2020L23 3BU: before 2020L23 3BW: before 2020L23 3BX: before 2020L23 3BY: before 2020L23 3BZ: before 2020L23 3DA: before 2020L23 3DB: before 2020L23 3DD: before 2020L23 3DE: before 2020L23 3DF: before 2020L23 3DG: before 2020L23 3DH: before 2020L23 3DJ: before 2020L23 3DL: before 2020L23 3DN: before 2020L23 3DP: before 2020L23 3DQ: before 2020L23 3DR: before 2020L23 3DS: before 2020L23 3DW: before 2020L23 3YW: new since 2020 Crosby Map of every postcode in the L23 3 sector, by new since 2020 Of the 51 postcodes in the L23 3 sector that ONS places, 1 are new since 2020 and 50 were in use before 2020. Places named: Great Crosby, Blundellsands. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Great CrosbyBlundellsands
  • New since 2020: 1
  • In use before 2020: 50

Of the 51 postcodes in the L23 3 sector that ONS places, 1 are new since 2020 and 50 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

L23 3YWMay 2024

What do homes sell for in L23 3?

Homes in L23 3 sold for a typical £320,000 in the 12 months to August 2026, across 29 sales, up 4.1% on the 12 months before, HM Land Registry's figures show.

£320,000 typical price, the 12 months to August 2026
£307,250 12 months to August 2025
▲ up 4.1% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached £327,000 19 sales
  • Terraced £174,150 6 sales
  • Flat or maisonette 1 sale, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start L23 3. 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 L23 3

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.

L23 3ADL23 3AEL23 3AFL23 3AGL23 3AHL23 3AJL23 3ALL23 3ANL23 3APL23 3AQL23 3ARL23 3ASL23 3ATL23 3AWL23 3AXL23 3AYL23 3AZL23 3BAL23 3BBL23 3BDL23 3BEL23 3BGL23 3BJL23 3BNL23 3BPL23 3BQL23 3BRL23 3BSL23 3BTL23 3BUL23 3BWL23 3BXL23 3BYL23 3BZL23 3DAL23 3DBL23 3DDL23 3DEL23 3DFL23 3DGL23 3DHL23 3DJL23 3DLL23 3DNL23 3DPL23 3DQL23 3DRL23 3DSL23 3DWL23 3YWL23 3YX

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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