LL59 postcode area guide — Gwynedd
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL59 postcode district in Gwynedd — every official dataset on one page.
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Where is LL59?
Broadband & internet speeds in LL59
Good coverage
Superfast (30Mb+)
94%
Ultrafast (300Mb+)
17.6%
Gigabit-capable
17.6%
Below USO (10Mb)
0.2%
Broadband availability in the LL59 postcode district (Gwynedd) is Good — superfast broadband reaches most premises. Across the 198 postcodes Ofcom measures in LL59, superfast broadband (30 Mbit/s or faster) reaches 94% of premises and gigabit-capable lines are available to 17.6%.
Around 0.2% of premises in LL59 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 LL59
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL59 5AA | 100% | 0% |
| LL59 5AB | 100% | 0% |
| LL59 5AD | 100% | 0% |
| LL59 5AE | 100% | 0% |
| LL59 5AF | 100% | 0% |
| LL59 5AG | 100% | 0% |
| LL59 5AH | 100% | 0% |
| LL59 5AJ | 100% | 0% |
| LL59 5AL | 100% | 0% |
| LL59 5AN | 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 LL59
Police recorded 16 incidents within about a mile of the centre of LL59 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Criminal damage & arson | 4 | 25.0% |
| Violence & sexual offences | 4 | 25.0% |
| Weapons possession | 2 | 12.5% |
| Anti-social behaviour | 1 | 6.3% |
| Burglary | 1 | 6.3% |
| Drugs | 1 | 6.3% |
| Other theft | 1 | 6.3% |
| Public order | 1 | 6.3% |
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 LL59
Based on 53 sales registered with HM Land Registry in the last 12 months, the median sold price in LL59 is £232,500, down 12.3% on the previous year (£265,000).
Detached
£295,000
22 sales
Semi-detached
£210,000
14 sales
Terraced
£180,000
12 sales
Flat / maisonette
£248,000
4 sales
Latest recorded sales in LL59
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 21 Apr 2026 | £400,000 | Terraced | St Georges Road | LL59 5EY |
| 7 Apr 2026 | £260,000 | Detached | Maes Y Ffynnon | LL59 5PS |
| 27 Mar 2026 | £315,000 | Detached | Gwel Y Llan | LL59 5YH |
| 20 Mar 2026 | £287,500 | Detached | Maes Yr Hafod | LL59 5NB |
| 20 Mar 2026 | £150,000 | Terraced | Tegfan Terrace | LL59 5PT |
| 18 Mar 2026 | £368,000 | Detached | Bryn Teg | LL59 5ST |
| 13 Mar 2026 | £177,500 | Semi-detached | Gwel Yr Wyddfa | LL59 5DX |
| 6 Mar 2026 | £131,000 | Semi-detached | Trem Arfon | LL59 5UR |
| 3 Mar 2026 | £180,000 | Semi-detached | Cil Y Graig | LL59 5HP |
| 20 Feb 2026 | £180,000 | Terraced | Lon Ganol | LL59 5LU |
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 LL59
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Gynradd Llandegfan | Not applicable | — | — | LL59 5UW |
| Ysgol Gynradd y Borth | Not applicable | — | — | LL59 5HS |
| Ysgol David Hughes | Not applicable | — | — | LL59 5SS |
| Treffos School | Not applicable | — | — | LL59 5SL |
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 LL59
57 rated food businesses operate in LL59. 44 hold the top rating of 5, 7 are rated 4, and 2 are rated 2 or below.
Among the 5-rated: &Caws, Anglesey Arms Hotel, Ashley, Babinogion Menai, Bee's Thai Street Food.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL59
From a sample of 133 Energy Performance Certificates across 11 LL59 postcodes, the most common rating is band D (average band D). 32% of sampled homes are rated C or better.
Band A
2%
Band B
6%
Band C
25%
Band D
47%
Band E
14%
Band F
5%
Band G
2%
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 LL59 typically use:
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What's it like living in LL59?
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Moving to LL59? Sort your connectivity first
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Postcodes in LL59
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Frequently asked questions
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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.