LL48 postcode area guide — Gwynedd
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL48 postcode district in Gwynedd — every official dataset on one page.
Check any UK postcode
Where is LL48?
Broadband & internet speeds in LL48
Good coverage
Superfast (30Mb+)
94.5%
Ultrafast (300Mb+)
22.1%
Gigabit-capable
22.1%
Below USO (10Mb)
1.2%
Broadband availability in the LL48 postcode district (Gwynedd) is Good — superfast broadband reaches most premises. Across the 159 postcodes Ofcom measures in LL48, superfast broadband (30 Mbit/s or faster) reaches 94.5% of premises and gigabit-capable lines are available to 22.1%.
Around 1.2% of premises in LL48 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 LL48
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL48 6AA | 100% | 0% |
| LL48 6AB | 100% | 0% |
| LL48 6AD | 100% | 0% |
| LL48 6AE | 100% | 0% |
| LL48 6AF | 100% | 0% |
| LL48 6AG | 100% | 7.7% |
| LL48 6AH | 100% | 85.7% |
| LL48 6AJ | 100% | 0% |
| LL48 6AL | 100% | 5.7% |
| LL48 6AN | 100% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Gwynedd
Ofcom's coverage model for the wider Gwynedd district (68,440 premises):
4G indoors — all networks
76.8%
4G outdoors — all networks
95.3%
5G outdoors — all networks
—
Voice indoors — all networks
81.4%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in LL48
Police recorded 12 incidents within about a mile of the centre of LL48 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 7 | 58.3% |
| Anti-social behaviour | 3 | 25.0% |
| Weapons possession | 1 | 8.3% |
| Public order | 1 | 8.3% |
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 LL48
Based on 29 sales registered with HM Land Registry in the last 12 months, the median sold price in LL48 is £150,000, down 3.2% on the previous year (£155,000).
Detached
£325,000
4 sales
Semi-detached
£180,000
5 sales
Terraced
£135,000
17 sales
Latest recorded sales in LL48
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 27 Apr 2026 | £132,500 | Terraced | Tynffrwd Terrace | LL48 6RS |
| 1 Apr 2026 | £150,000 | Semi-detached | Garreg Frech | LL48 6BZ |
| 30 Mar 2026 | £135,000 | Terraced | School Street | LL48 6AE |
| 19 Mar 2026 | £120,000 | Detached | LL48 6PY | |
| 6 Mar 2026 | £150,000 | Other | High Street | LL48 6BN |
| 6 Mar 2026 | £85,000 | Terraced | LL48 6EF | |
| 27 Feb 2026 | £160,000 | Terraced | Church Street | LL48 6AB |
| 15 Jan 2026 | £137,500 | Terraced | School Street | LL48 6AE |
| 12 Dec 2025 | £265,000 | Semi-detached | Minffordd Road | LL48 6AU |
| 5 Dec 2025 | £158,000 | Semi-detached | Adwy Ddu Estate | LL48 6AP |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Gwynedd demographics
Census 2021 figures for the wider Gwynedd district (117,393 residents, 51,105 households):
| Age profile | |
|---|---|
| Under 15 | 16.6% |
| 15–29 | 23.3% |
| 30–44 | 15.9% |
| 45–64 | 21% |
| 65+ | 23.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 65.4% |
| Private rented | 17.6% |
| Social rented | 9.9% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL48
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Y Garreg | Not applicable | — | — | LL48 6LJ |
| Ysgol Cefn Coch | Not applicable | — | — | LL48 6AE |
| Ysgol Hafod Lon | Not applicable | — | — | LL48 6LD |
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 LL48
40 rated food businesses operate in LL48. 36 hold the top rating of 5, 3 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Academi Croeso Portmeirion, Brondanw Arms - Y Ring, Bwydydd Fferm Gelli Farm Foods, Caffi Croesor, Caffi Glas.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL48
From a sample of 107 Energy Performance Certificates across 11 LL48 postcodes, the most common rating is band D (average band D). 26% of sampled homes are rated C or better.
Band A
2%
Band B
5%
Band C
20%
Band D
51%
Band E
13%
Band F
4%
Band G
6%
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 Gwynedd
Landlines around LL48 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 LL48?
Be the first to rate LL48 (Gwynedd).
How would you rate living in LL48 (Gwynedd)?
Moving to LL48? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Gwynedd — free, no-obligation quote.
Postcodes in LL48
Neighbouring districts
All Llandudno (LL) postcode districts ›
Frequently asked questions
Where is the LL48 postcode?
How much do houses cost in LL48?
Is LL48 a safe area?
What broadband can I get in LL48?
Who lives in LL48?
How energy efficient are homes in LL48?
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.