LL12 postcode area guide — Flintshire
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL12 postcode district in Flintshire — every official dataset on one page.
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Where is LL12?
Broadband & internet speeds in LL12
Excellent coverage
Superfast (30Mb+)
94.6%
Ultrafast (300Mb+)
82.9%
Gigabit-capable
82.9%
Below USO (10Mb)
0.1%
Broadband availability in the LL12 postcode district (Flintshire) is Excellent — gigabit-capable full fibre is widely available. Across the 886 postcodes Ofcom measures in LL12, superfast broadband (30 Mbit/s or faster) reaches 94.6% of premises and gigabit-capable lines are available to 82.9%.
Around 0.1% of premises in LL12 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 LL12
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL12 0AA | 100% | 100% |
| LL12 0AB | 85.7% | 85.7% |
| LL12 0AD | 25% | 0% |
| LL12 0AE | 100% | 8.3% |
| LL12 0AF | 50% | 50% |
| LL12 0AG | 66.7% | 66.7% |
| LL12 0AH | 60% | 60% |
| LL12 0AJ | 100% | 100% |
| LL12 0AL | 100% | 100% |
| LL12 0AN | 0% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Flintshire
Ofcom's coverage model for the wider Flintshire district (76,140 premises):
4G indoors — all networks
78%
4G outdoors — all networks
98.4%
5G outdoors — all networks
10.1%
Voice indoors — all networks
85.6%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in LL12
Police recorded 56 incidents within about a mile of the centre of LL12 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 25 | 44.6% |
| Anti-social behaviour | 13 | 23.2% |
| Criminal damage & arson | 5 | 8.9% |
| Other theft | 5 | 8.9% |
| Shoplifting | 3 | 5.4% |
| Weapons possession | 2 | 3.6% |
| Bicycle theft | 1 | 1.8% |
| Public order | 1 | 1.8% |
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 LL12
Based on 266 sales registered with HM Land Registry in the last 12 months, the median sold price in LL12 is £259,950, up 5.0% on the previous year (£247,500).
Detached
£330,000
120 sales
Semi-detached
£210,000
89 sales
Terraced
£168,000
41 sales
Flat / maisonette
£118,000
6 sales
Latest recorded sales in LL12
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 28 May 2026 | £245,000 | Detached | Derby Road | LL12 9AE |
| 18 May 2026 | £187,500 | Semi-detached | Chestnut Avenue | LL12 7HU |
| 18 May 2026 | £280,000 | Detached | Halle Court | LL12 0QP |
| 15 May 2026 | £91,000 | Detached | Castle Street | LL12 9DS |
| 14 May 2026 | £237,500 | Detached | Singrett Hill | LL12 0NR |
| 8 May 2026 | £245,000 | Detached | Westbury Drive | LL12 8PZ |
| 1 May 2026 | £321,000 | Semi-detached | Maxwell Close | LL12 8UD |
| 1 May 2026 | £122,500 | Semi-detached | Llay New Road | LL12 0PU |
| 30 Apr 2026 | £90,000 | Flat | Seventh Avenue | LL12 0SX |
| 30 Apr 2026 | £367,500 | Detached | Lindley Gardens | LL12 0QS |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Flintshire demographics
Census 2021 figures for the wider Flintshire district (154,962 residents, 66,911 households):
| Age profile | |
|---|---|
| Under 15 | 17.7% |
| 15–29 | 21% |
| 30–44 | 18.3% |
| 45–64 | 21.6% |
| 65+ | 21.4% |
| Housing tenure | |
|---|---|
| Owner-occupied | 71.8% |
| Private rented | 13.3% |
| Social rented | 4.1% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL12
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Estyn C.P. | Not applicable | — | — | LL12 9NL |
| Abermorddu C.P. School | Not applicable | — | — | LL12 9DH |
| The Rofft C.P. School | Not applicable | — | — | LL12 8LA |
| Alexandra C.P. School | Not applicable | — | — | LL12 7AZ |
| St Peter's CIW Voluntary Controlled Primary School | Not applicable | — | — | LL12 0EE |
| All Saints Primary School | Not applicable | — | — | LL12 8RW |
| Castell Alun High School | Not applicable | — | — | LL12 9PY |
| Darland High School | Not applicable | — | — | LL12 0DL |
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 LL12
152 rated food businesses operate in LL12. 136 hold the top rating of 5, 8 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Abbeyfield Society, Abc Nursery, Acton Childcare, Acton Park Primary School Infants, Acton Park Primary School Juniors.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL12
From a sample of 74 Energy Performance Certificates across 10 LL12 postcodes, the most common rating is band D (average band D). 36% of sampled homes are rated C or better.
Band B
3%
Band C
34%
Band D
36%
Band E
16%
Band F
9%
Band G
1%
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 Flintshire
Landlines around LL12 typically use:
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What's it like living in LL12?
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Moving to LL12? Sort your connectivity first
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Postcodes in LL12
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.