NW3 postcode area guide — Barnet
House prices, crime, broadband speeds, mobile signal, schools and demographics for the NW3 postcode district in Barnet — every official dataset on one page.
Check any UK postcode
Where is NW3?
Broadband & internet speeds in NW3
Excellent coverage
Superfast (30Mb+)
99.1%
Ultrafast (300Mb+)
88.9%
Gigabit-capable
88.9%
Below USO (10Mb)
0%
Broadband availability in the NW3 postcode district (Barnet) is Excellent — gigabit-capable full fibre is widely available. Across the 1,249 postcodes Ofcom measures in NW3, superfast broadband (30 Mbit/s or faster) reaches 99.1% of premises and gigabit-capable lines are available to 88.9%.
Around 0% of premises in NW3 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 NW3
| Postcode | Superfast | Gigabit |
|---|---|---|
| NW3 1AA | 90.9% | 90.9% |
| NW3 1AB | 100% | 100% |
| NW3 1AD | 100% | 73.3% |
| NW3 1AG | 100% | 100% |
| NW3 1AH | 100% | 0% |
| NW3 1AJ | 100% | 81.8% |
| NW3 1AL | 100% | 75% |
| NW3 1AN | 90.9% | 90.9% |
| NW3 1AP | 100% | 100% |
| NW3 1AR | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Barnet
Ofcom's coverage model for the wider Barnet district (168,463 premises):
4G indoors — all networks
98.7%
4G outdoors — all networks
100%
5G outdoors — all networks
99.6%
Voice indoors — all networks
99.6%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in NW3
Police recorded 735 incidents within about a mile of the centre of NW3 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 198 | 26.9% |
| Violence & sexual offences | 167 | 22.7% |
| Other theft | 85 | 11.6% |
| Theft from the person | 58 | 7.9% |
| Shoplifting | 52 | 7.1% |
| Vehicle crime | 51 | 6.9% |
| Public order | 40 | 5.4% |
| Burglary | 34 | 4.6% |
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 NW3
Based on 368 sales registered with HM Land Registry in the last 12 months, the median sold price in NW3 is £980,000, up 2.6% on the previous year (£955,000).
Detached
£4,200,000
7 sales
Semi-detached
£3,800,000
21 sales
Terraced
£2,080,000
48 sales
Flat / maisonette
£830,000
274 sales
Latest recorded sales in NW3
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 15 May 2026 | £522,500 | Flat | Eton Avenue | NW3 3HL |
| 8 May 2026 | £835,000 | Flat | Lyndhurst Road | NW3 5NX |
| 8 May 2026 | £575,000 | Flat | Mansfield Road | NW3 2JB |
| 7 May 2026 | £1,340,000 | Flat | Lyndhurst Terrace | NW3 5QA |
| 5 May 2026 | £530,000 | Flat | Rosslyn Hill | NW3 1ND |
| 1 May 2026 | £510,000 | Flat | Lawn Road | NW3 2XD |
| 1 May 2026 | £965,000 | Flat | Rosslyn Hill | NW3 5UJ |
| 1 May 2026 | £3,150,000 | Semi-detached | Finchley Road | NW3 6DH |
| 30 Apr 2026 | £595,000 | Flat | Haverstock Hill | NW3 4QS |
| 30 Apr 2026 | £870,000 | Flat | Fitzjohns Avenue | NW3 6NP |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Barnet demographics
Census 2021 figures for the wider Barnet district (389,341 residents, 148,917 households):
| Age profile | |
|---|---|
| Under 15 | 20.5% |
| 15–29 | 25% |
| 30–44 | 22.7% |
| 45–64 | 17.4% |
| 65+ | 14.4% |
| Housing tenure | |
|---|---|
| Owner-occupied | 52.7% |
| Private rented | 32.8% |
| Social rented | 6.7% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around NW3
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| University College School | Not applicable | 4–18 | 1,297 | NW3 6XH |
| The UCL Academy | Secondary | 11–18 | 972 | NW3 3AQ |
| South Hampstead High School GDST | Not applicable | 4–19 | 961 | NW3 5SS |
| Haverstock School | Secondary | 11–18 | 878 | NW3 2BQ |
| The Hall School | Not applicable | 4–13 | 463 | NW3 4NU |
| Devonshire House Preparatory School | Not applicable | 2–13 | 430 | NW3 6AE |
| Gospel Oak Primary School | Primary | 3–11 | 421 | NW3 2JB |
| North Bridge House Senior School | Not applicable | 11–18 | 365 | NW3 5UD |
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 NW3
458 rated food businesses operate in NW3. 221 hold the top rating of 5, 70 are rated 4, and 28 are rated 2 or below.
Among the 5-rated: 28 Church Row, Age UK Camden, Air Studios, ALDI STORES LTD, AMATHUS HAMPSTEAD.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in NW3
From a sample of 225 Energy Performance Certificates across 12 NW3 postcodes, the most common rating is band C (average band D). 45% of sampled homes are rated C or better.
Band B
1%
Band C
44%
Band D
41%
Band E
12%
Band F
2%
Band G
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 Barnet
Landlines around NW3 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 NW3?
Be the first to rate NW3 (Barnet).
How would you rate living in NW3 (Barnet)?
Moving to NW3? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Barnet — free, no-obligation quote.
Postcodes in NW3
Neighbouring districts
All North West London (NW) postcode districts ›
Frequently asked questions
Where is the NW3 postcode?
How much do houses cost in NW3?
Is NW3 a safe area?
What broadband can I get in NW3?
Who lives in NW3?
How energy efficient are homes in NW3?
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.
