CF3 postcode area guide — Caerphilly
House prices, crime, broadband speeds, mobile signal, schools and demographics for the CF3 postcode district in Caerphilly — every official dataset on one page.
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Where is CF3?
Broadband & internet speeds in CF3
Excellent coverage
Superfast (30Mb+)
98.1%
Ultrafast (300Mb+)
86.7%
Gigabit-capable
86.7%
Below USO (10Mb)
0%
Broadband availability in the CF3 postcode district (Caerphilly) is Excellent — gigabit-capable full fibre is widely available. Across the 911 postcodes Ofcom measures in CF3, superfast broadband (30 Mbit/s or faster) reaches 98.1% of premises and gigabit-capable lines are available to 86.7%.
Around 0% of premises in CF3 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 CF3
| Postcode | Superfast | Gigabit |
|---|---|---|
| CF3 0AA | 98% | 98% |
| CF3 0AB | 100% | 100% |
| CF3 0AD | 100% | 100% |
| CF3 0AE | 100% | 100% |
| CF3 0AF | 100% | 100% |
| CF3 0AG | 100% | 100% |
| CF3 0AH | 100% | 100% |
| CF3 0AJ | 100% | 100% |
| CF3 0AL | 100% | 100% |
| CF3 0AN | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Caerphilly
Ofcom's coverage model for the wider Caerphilly district (84,902 premises):
4G indoors — all networks
94.3%
4G outdoors — all networks
99.9%
5G outdoors — all networks
6%
Voice indoors — all networks
96.8%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in CF3
Police recorded 303 incidents within about a mile of the centre of CF3 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 131 | 43.2% |
| Public order | 38 | 12.5% |
| Shoplifting | 31 | 10.2% |
| Anti-social behaviour | 27 | 8.9% |
| Criminal damage & arson | 19 | 6.3% |
| Vehicle crime | 12 | 4.0% |
| Other theft | 9 | 3.0% |
| Other crime | 9 | 3.0% |
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 CF3
Based on 437 sales registered with HM Land Registry in the last 12 months, the median sold price in CF3 is £250,000, essentially flat on the previous year (£250,000).
Detached
£364,000
76 sales
Semi-detached
£265,000
176 sales
Terraced
£225,000
134 sales
Flat / maisonette
£143,000
35 sales
Latest recorded sales in CF3
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 13 May 2026 | £158,000 | Semi-detached | Thrush Close | CF3 0PE |
| 11 May 2026 | £210,000 | Terraced | Sanderling Drive | CF3 0DH |
| 8 May 2026 | £206,000 | Terraced | Summerhill Close | CF3 0LP |
| 8 May 2026 | £200,000 | Terraced | Brython Drive | CF3 0GB |
| 5 May 2026 | £220,000 | Semi-detached | Ashdown Close | CF3 0ER |
| 5 May 2026 | £235,000 | Semi-detached | Ashdown Close | CF3 0ER |
| 1 May 2026 | £330,000 | Terraced | James Court | CF3 0FA |
| 30 Apr 2026 | £342,500 | Semi-detached | Tiverton Drive | CF3 4AX |
| 30 Apr 2026 | £289,000 | Semi-detached | Canopus Close | CF3 1NR |
| 27 Apr 2026 | £325,000 | Semi-detached | Birkdale Close | CF3 0LF |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Caerphilly demographics
Census 2021 figures for the wider Caerphilly district (175,952 residents, 76,255 households):
| Age profile | |
|---|---|
| Under 15 | 18.5% |
| 15–29 | 22.1% |
| 30–44 | 18.7% |
| 45–64 | 20.7% |
| 65+ | 20.1% |
| Housing tenure | |
|---|---|
| Owner-occupied | 67.5% |
| Private rented | 13.4% |
| Social rented | 5.6% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around CF3
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| St Illtyds R.C. High School | Not applicable | — | — | CF3 1XQ |
| St Cadoc's Primary School | Not applicable | — | — | CF3 5NX |
| St John Lloyd R.C. Primary School | Not applicable | — | — | CF3 1TA |
| Bishop Childs C.I.W. Primary School | Not applicable | — | — | CF3 0AY |
| Eastern High | Not applicable | — | — | CF3 1XZ |
| Ysgol Pen Y Pil | Not applicable | — | — | CF3 1RQ |
| Trowbridge Primary School | Not applicable | — | — | CF3 1SX |
| Rumney Primary School | Not applicable | — | — | CF3 3HD |
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 CF3
215 rated food businesses operate in CF3. 130 hold the top rating of 5, 41 are rated 4, and 3 are rated 2 or below.
Among the 5-rated: A Bright Start Nursery Ltd, A1 Off Licence, Aldi, ARCM UK LTD, Beans To Coffee @ The Hall.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in CF3
From a sample of 267 Energy Performance Certificates across 12 CF3 postcodes, the most common rating is band C (average band C). 56% of sampled homes are rated C or better.
Band A
0%
Band B
16%
Band C
40%
Band D
35%
Band E
8%
Band F
0%
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 Caerphilly
Landlines around CF3 typically use:
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What's it like living in CF3?
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Moving to CF3? Sort your connectivity first
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Postcodes in CF3
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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.