L23 postcode area guide — Sefton

Where is L23?

Broadband & internet speeds in L23

Excellent coverage

Broadband availability in the L23 postcode district (Sefton) is Excellent — gigabit-capable full fibre is widely available. Across the 669 postcodes Ofcom measures in L23, superfast broadband (30 Mbit/s or faster) reaches 99% of premises and gigabit-capable lines are available to 96.1%.

Around 0.3% of premises in L23 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in L23

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Sefton

Ofcom's coverage model for the wider Sefton district (140,652 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in L23

Police recorded 189 incidents within about a mile of the centre of L23 in May 2026 (latest published street-level data). The breakdown:

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in L23

Based on 303 sales registered with HM Land Registry in the last 12 months, the median sold price in L23 is £270,000, essentially flat on the previous year (£270,000).

Latest recorded sales in L23

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Sefton demographics

Census 2021 figures for the wider Sefton district (279,233 residents, 123,073 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around L23

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in L23

189 rated food businesses operate in L23. 140 hold the top rating of 5, 29 are rated 4, and 1 are rated 2 or below.

Among the 5-rated: A Gillion (Cooked Meats) Ltd, Abbeyfield, Abbeyfield, Aldi Stores Ltd, Alexanders Sandwich Bar.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in L23

From a sample of 193 Energy Performance Certificates across 12 L23 postcodes, the most common rating is band D (average band D). 38% of sampled homes are rated C or better.

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for Sefton

Landlines around L23 typically use:

Had a call from an unknown number? Use our free UK phone number checker to see who called.

What's it like living in L23?

Postcodes in L23

Neighbouring districts

All Liverpool (L) postcode districts ›

Frequently asked questions

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.