LL20 postcode area guide — Denbighshire
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL20 postcode district in Denbighshire — every official dataset on one page.
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Where is LL20?
Broadband & internet speeds in LL20
Strong coverage
Superfast (30Mb+)
89.7%
Ultrafast (300Mb+)
43.3%
Gigabit-capable
41.7%
Below USO (10Mb)
1.5%
Broadband availability in the LL20 postcode district (Denbighshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 382 postcodes Ofcom measures in LL20, superfast broadband (30 Mbit/s or faster) reaches 89.7% of premises and gigabit-capable lines are available to 41.7%.
Around 1.5% of premises in LL20 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 LL20
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL20 7AA | 25% | 0% |
| LL20 7AB | 30% | 0% |
| LL20 7AD | 100% | 0% |
| LL20 7AE | 100% | 0% |
| LL20 7AF | 100% | 0% |
| LL20 7AG | 100% | 0% |
| LL20 7AH | 50% | 37.5% |
| LL20 7AJ | 0% | 0% |
| LL20 7AL | 100% | 100% |
| LL20 7AN | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Denbighshire
Ofcom's coverage model for the wider Denbighshire district (51,278 premises):
4G indoors — all networks
80.5%
4G outdoors — all networks
98%
5G outdoors — all networks
—
Voice indoors — all networks
84.3%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in LL20
Police recorded 29 incidents within about a mile of the centre of LL20 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 12 | 41.4% |
| Violence & sexual offences | 6 | 20.7% |
| Shoplifting | 4 | 13.8% |
| Criminal damage & arson | 3 | 10.3% |
| Burglary | 2 | 6.9% |
| Other theft | 1 | 3.4% |
| Public order | 1 | 3.4% |
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 LL20
Based on 92 sales registered with HM Land Registry in the last 12 months, the median sold price in LL20 is £247,000, up 16.0% on the previous year (£213,000).
Detached
£340,000
39 sales
Semi-detached
£185,000
15 sales
Terraced
£153,000
23 sales
Flat / maisonette
£147,250
6 sales
Latest recorded sales in LL20
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 24 Apr 2026 | £100,000 | Semi-detached | Queen Street | LL20 8LL |
| 17 Apr 2026 | £685,000 | Other | LL20 7RY | |
| 10 Apr 2026 | £240,000 | Detached | Selattyn Road | LL20 7HB |
| 10 Apr 2026 | £520,000 | Detached | Dolywern | LL20 7AG |
| 10 Apr 2026 | £372,000 | Detached | Dolywern | LL20 7AG |
| 9 Apr 2026 | £392,000 | Detached | Maes Helyg | LL20 8BX |
| 9 Mar 2026 | £340,000 | Detached | LL20 8AR | |
| 6 Mar 2026 | £170,000 | Semi-detached | Heol Penderyst | LL20 7UD |
| 6 Mar 2026 | £183,000 | Semi-detached | Maes Collen | LL20 8EN |
| 6 Mar 2026 | £185,000 | Terraced | Abbey Road | LL20 8SL |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
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Who lives here? Denbighshire demographics
Census 2021 figures for the wider Denbighshire district (95,817 residents, 42,387 households):
| Age profile | |
|---|---|
| Under 15 | 17.7% |
| 15–29 | 19.6% |
| 30–44 | 16.3% |
| 45–64 | 21.8% |
| 65+ | 24.8% |
| Housing tenure | |
|---|---|
| Owner-occupied | 65.9% |
| Private rented | 20.2% |
| Social rented | 5.5% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL20
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Bryn Collen Llangollen | Not applicable | — | — | LL20 8AR |
| Froncysyllte C.P. School | Not applicable | — | — | LL20 7RS |
| Garth C.P. School | Not applicable | — | — | LL20 7UY |
| Ysgol Cynddelw | Not applicable | — | — | LL20 7HH |
| Ysgol Llanarmon Dyffryn Ceiriog | Not applicable | — | — | LL20 7LB |
| Ysgol Dinas Bran | Not applicable | — | — | LL20 8TG |
| Ysgol Gymraeg y Gwernant | Not applicable | — | — | LL20 8AR |
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 LL20
122 rated food businesses operate in LL20. 93 hold the top rating of 5, 11 are rated 4, and 3 are rated 2 or below.
Among the 5-rated: Abbey Grange Hotel, Aldi Stores Ltd, Anglo Welsh, Anna's Bakery, anne anderson.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL20
From a sample of 107 Energy Performance Certificates across 12 LL20 postcodes, the most common rating is band D (average band D). 26% of sampled homes are rated C or better.
Band B
2%
Band C
24%
Band D
42%
Band E
21%
Band F
7%
Band G
4%
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 Denbighshire
Landlines around LL20 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 LL20?
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Moving to LL20? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Denbighshire — free, no-obligation quote.
Postcodes in LL20
Neighbouring districts
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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.