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Postcode area report · 1,249 postcodes

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.

NW3 is a postcode district in Barnet, England, containing 1,249 live postcodes. The surrounding Barnet district has a population of roughly 389,341. Over the last year the typical (median) sold price in NW3 has been £980,000.

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Where is NW3?

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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

PostcodeSuperfastGigabit
NW3 1AA90.9%90.9%
NW3 1AB100%100%
NW3 1AD100%73.3%
NW3 1AG100%100%
NW3 1AH100%0%
NW3 1AJ100%81.8%
NW3 1AL100%75%
NW3 1AN90.9%90.9%
NW3 1AP100%100%
NW3 1AR100%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:

CategoryIncidentsShare
Anti-social behaviour19826.9%
Violence & sexual offences16722.7%
Other theft8511.6%
Theft from the person587.9%
Shoplifting527.1%
Vehicle crime516.9%
Public order405.4%
Burglary344.6%

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

DatePriceTypeStreetPostcode
15 May 2026£522,500FlatEton AvenueNW3 3HL
8 May 2026£835,000FlatLyndhurst RoadNW3 5NX
8 May 2026£575,000FlatMansfield RoadNW3 2JB
7 May 2026£1,340,000FlatLyndhurst TerraceNW3 5QA
5 May 2026£530,000FlatRosslyn HillNW3 1ND
1 May 2026£510,000FlatLawn RoadNW3 2XD
1 May 2026£965,000FlatRosslyn HillNW3 5UJ
1 May 2026£3,150,000Semi-detachedFinchley RoadNW3 6DH
30 Apr 2026£595,000FlatHaverstock HillNW3 4QS
30 Apr 2026£870,000FlatFitzjohns AvenueNW3 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 1520.5%
15–2925%
30–4422.7%
45–6417.4%
65+14.4%
Housing tenure
Owner-occupied52.7%
Private rented32.8%
Social rented6.7%

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around NW3

SchoolPhaseAgesPupilsPostcode
University College SchoolNot applicable4–181,297NW3 6XH
The UCL AcademySecondary11–18972NW3 3AQ
South Hampstead High School GDSTNot applicable4–19961NW3 5SS
Haverstock SchoolSecondary11–18878NW3 2BQ
The Hall SchoolNot applicable4–13463NW3 4NU
Devonshire House Preparatory SchoolNot applicable2–13430NW3 6AE
Gospel Oak Primary SchoolPrimary3–11421NW3 2JB
North Bridge House Senior SchoolNot applicable11–18365NW3 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:

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What's it like living in NW3?

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Moving to NW3? Sort your connectivity first

We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Barnet — free, no-obligation quote.

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Postcodes in NW3

Neighbouring districts

All North West London (NW) postcode districts ›

Frequently asked questions

Where is the NW3 postcode?
NW3 covers Barnet in England. It contains 1,249 live postcodes. Use the map and the postcode list on this page to pinpoint an exact address.
How much do houses cost in NW3?
The median sold price in NW3 over the last 12 months is £980,000, based on 368 HM Land Registry recorded sales. See the house-price section above for medians by property type and the most recent sales.
Is NW3 a safe area?
Police recorded 735 incidents within a mile of the centre of NW3 in May 2026, with Anti-social behaviour the most common category. Compare the breakdown above and check street-level detail on police.uk before drawing conclusions — a busy high street inflates raw counts.
What broadband can I get in NW3?
Superfast broadband reaches 99.1% of premises in NW3 and gigabit-capable services 88.9%, per Ofcom Connected Nations. Enter a full postcode in the checker on this page for address-level availability.
Who lives in NW3?
In the wider Barnet district, 53% of households own their home, 33% rent privately and 7% are in social housing (Census 2021). The age profile and household counts are in the demographics section above.
How energy efficient are homes in NW3?
Across a sample of 225 Energy Performance Certificates in NW3, the most common rating is band C and the average is band D. 101 of the sampled homes are rated C or better. See the EPC section above for the full band breakdown.

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.

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