LL21 postcode area guide — Conwy
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL21 postcode district in Conwy — every official dataset on one page.
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Where is LL21?
Broadband & internet speeds in LL21
Mixed coverage
Superfast (30Mb+)
77.9%
Ultrafast (300Mb+)
35.4%
Gigabit-capable
35.4%
Below USO (10Mb)
4%
Broadband availability in the LL21 postcode district (Conwy) is Mixed — superfast is available to many but not all premises. Across the 370 postcodes Ofcom measures in LL21, superfast broadband (30 Mbit/s or faster) reaches 77.9% of premises and gigabit-capable lines are available to 35.4%.
Around 4% of premises in LL21 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 LL21
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL21 0AA | 100% | 0% |
| LL21 0AB | 100% | 0% |
| LL21 0AD | 100% | 37.5% |
| LL21 0AE | 100% | 0% |
| LL21 0AG | 100% | 0% |
| LL21 0AH | 100% | 0% |
| LL21 0AJ | 100% | 0% |
| LL21 0AL | 100% | 0% |
| LL21 0AN | 100% | 0% |
| LL21 0AP | 100% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Conwy
Ofcom's coverage model for the wider Conwy district (60,351 premises):
4G indoors — all networks
80.9%
4G outdoors — all networks
97.2%
5G outdoors — all networks
0.3%
Voice indoors — all networks
88.8%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
House prices in LL21
Based on 51 sales registered with HM Land Registry in the last 12 months, the median sold price in LL21 is £185,000, down 31.0% on the previous year (£268,000).
Detached
£270,000
25 sales
Semi-detached
£142,500
7 sales
Terraced
£139,250
14 sales
Latest recorded sales in LL21
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 22 May 2026 | £382,500 | Detached | Rhos Helyg | LL21 0TT |
| 29 Apr 2026 | £185,000 | Semi-detached | Maes Annedd | LL21 9RU |
| 17 Apr 2026 | £110,000 | Detached | LL21 0RE | |
| 10 Apr 2026 | £230,000 | Detached | Godrer Gaer | LL21 9YA |
| 2 Apr 2026 | £190,000 | Detached | Waterfall Road | LL21 0LH |
| 31 Mar 2026 | £110,000 | Detached | LL21 0ED | |
| 17 Mar 2026 | £270,000 | Detached | LL21 9SB | |
| 2 Mar 2026 | £320,000 | Detached | LL21 9LL | |
| 23 Feb 2026 | £480,000 | Detached | LL21 0SG | |
| 20 Feb 2026 | £133,000 | Semi-detached | Trem Y Foel | LL21 0NH |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Conwy demographics
Census 2021 figures for the wider Conwy district (114,741 residents, 52,235 households):
| Age profile | |
|---|---|
| Under 15 | 16% |
| 15–29 | 18.3% |
| 30–44 | 15.8% |
| 45–64 | 22.5% |
| 65+ | 27.3% |
| Housing tenure | |
|---|---|
| Owner-occupied | 68.4% |
| Private rented | 19.1% |
| Social rented | 8.1% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL21
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Cerrigydrudion | Not applicable | — | — | LL21 9SW |
| Ysgol Betws Gwerful Goch | Not applicable | — | — | LL21 9PY |
| Ysgol Gynradd Carrog | Not applicable | — | — | LL21 9AW |
| Ysgol Caer Drewyn | Not applicable | — | — | LL21 9RT |
| Ysgol Bro Elwern | Not applicable | — | — | LL21 9DF |
| The Branas School | Not applicable | — | — | LL21 0TA |
| Ysgol Bro Dyfrdwy | Not applicable | — | — | LL21 0LG |
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 LL21
71 rated food businesses operate in LL21. 51 hold the top rating of 5, 11 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Betws G G Breakfast Club, Blodyn Aur, Blue Lion Hotel, Bradwest Free Range Eggs, Breakfast Club At Ysgol Bro Dyfrdwy.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL21
From a sample of 60 Energy Performance Certificates across 11 LL21 postcodes, the most common rating is band D (average band E). 10% of sampled homes are rated C or better.
Band B
5%
Band C
5%
Band D
28%
Band E
18%
Band F
28%
Band G
15%
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 Conwy
Landlines around LL21 typically use:
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What's it like living in LL21?
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Moving to LL21? Sort your connectivity first
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Postcodes in LL21
Neighbouring districts
All Llandudno (LL) postcode districts ›
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.