NP23 postcode area guide — Blaenau Gwent
House prices, crime, broadband speeds, mobile signal, schools and demographics for the NP23 postcode district in Blaenau Gwent — every official dataset on one page.
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Where is NP23?
Broadband & internet speeds in NP23
Strong coverage
Superfast (30Mb+)
97.6%
Ultrafast (300Mb+)
53.5%
Gigabit-capable
50.9%
Below USO (10Mb)
0.1%
Broadband availability in the NP23 postcode district (Blaenau Gwent) is Strong — superfast is near-universal and gigabit is rolling out. Across the 858 postcodes Ofcom measures in NP23, superfast broadband (30 Mbit/s or faster) reaches 97.6% of premises and gigabit-capable lines are available to 50.9%.
Around 0.1% of premises in NP23 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 NP23
| Postcode | Superfast | Gigabit |
|---|---|---|
| NP23 4AB | 100% | 0% |
| NP23 4AD | 100% | 0% |
| NP23 4AE | 100% | 0% |
| NP23 4AF | 100% | 0% |
| NP23 4AG | 95.7% | 0% |
| NP23 4AH | 100% | 0% |
| NP23 4AJ | 94.6% | 0% |
| NP23 4AL | 100% | 100% |
| NP23 4AN | 100% | 0% |
| NP23 4AP | 100% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Blaenau Gwent
Ofcom's coverage model for the wider Blaenau Gwent district (35,744 premises):
4G indoors — all networks
92.2%
4G outdoors — all networks
99.9%
5G outdoors — all networks
—
Voice indoors — all networks
97.3%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in NP23
Police recorded 173 incidents within about a mile of the centre of NP23 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 46 | 26.6% |
| Anti-social behaviour | 39 | 22.5% |
| Criminal damage & arson | 19 | 11.0% |
| Public order | 16 | 9.2% |
| Burglary | 15 | 8.7% |
| Vehicle crime | 12 | 6.9% |
| Other theft | 9 | 5.2% |
| Weapons possession | 5 | 2.9% |
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 NP23
Based on 314 sales registered with HM Land Registry in the last 12 months, the median sold price in NP23 is £134,000, down 4.3% on the previous year (£140,000).
Detached
£289,950
35 sales
Semi-detached
£185,000
78 sales
Terraced
£120,000
178 sales
Flat / maisonette
£66,000
10 sales
Latest recorded sales in NP23
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 15 May 2026 | £110,000 | Terraced | Beaufort Hill | NP23 5QW |
| 15 May 2026 | £260,000 | Semi-detached | Alandale Road | NP23 5BR |
| 15 May 2026 | £260,000 | Semi-detached | Coed Cae | NP23 5TP |
| 13 May 2026 | £150,000 | Terraced | Bryn Coch | NP23 5DT |
| 11 May 2026 | £120,000 | Terraced | Drysiog Street | NP23 6DF |
| 11 May 2026 | £140,000 | Terraced | Mount Pleasant Road | NP23 6JN |
| 8 May 2026 | £145,000 | Terraced | Bronhafod Street | NP23 4QN |
| 8 May 2026 | £210,000 | Semi-detached | Lakeside Avenue | NP23 4EE |
| 8 May 2026 | £120,000 | Flat | Clos Gwaith Dur | NP23 6EP |
| 27 Apr 2026 | £115,000 | Terraced | Darby Crescent | NP23 6QE |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Blaenau Gwent demographics
Census 2021 figures for the wider Blaenau Gwent district (66,902 residents, 30,340 households):
| Age profile | |
|---|---|
| Under 15 | 17.6% |
| 15–29 | 22.7% |
| 30–44 | 17.7% |
| 45–64 | 21.8% |
| 65+ | 20.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 60.1% |
| Private rented | 16.1% |
| Social rented | 14.6% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around NP23
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Cwm Primary School | Not applicable | — | — | NP23 7RD |
| Beaufort Hill Primary School | Not applicable | — | — | NP23 5QD |
| Willowtown Primary School | Not applicable | — | — | NP23 6NJ |
| Blaen-Y-Cwm C.P. School | Not applicable | — | — | NP23 4BR |
| Glyncoed Primary School | Not applicable | — | — | NP23 5UL |
| Rhos y Fedwen Primary | Not applicable | — | — | NP23 5TA |
| St Mary's Roman Catholic - Brynmawr | Not applicable | — | — | NP23 4EF |
| St Mary's C in W Voluntary Aided School | Not applicable | — | — | NP23 4SE |
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 NP23
273 rated food businesses operate in NP23. 107 hold the top rating of 5, 94 are rated 4, and 14 are rated 2 or below.
Among the 5-rated: Acorns Nursery (Pre School), Aldi, B & M Express, Beacon Lodge, Beaufort Hill Primary School.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in NP23
From a sample of 126 Energy Performance Certificates across 12 NP23 postcodes, the most common rating is band D (average band D). 38% of sampled homes are rated C or better.
Band C
38%
Band D
41%
Band E
15%
Band F
2%
Band G
3%
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 Blaenau Gwent
Landlines around NP23 typically use:
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What's it like living in NP23?
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Moving to NP23? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Blaenau Gwent — free, no-obligation quote.
Postcodes in NP23
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.