N21 is a district with notable trade-offs with strong schools and health scores. However, affordability and environment scores are below average. Average house prices of £717K are 1.3× the London median, and crime levels are 69% below the London average.
Best for:Families prioritising schoolsHealth-conscious residents
🛡️Safety
51
69% below avg
🎓Schools
92
100% Good or Outstanding
🚇Transport
37
2 rail stations nearby
💷Afford.
6
Avg £717,301
🌿Environ.
30
Moderate air quality · 35% green
❤️Health
83
3/4 GPs accepting patients
📚Education
56
Around average
👥Community
34
Below average
🛡️
Crime & Safety
69% below avg
Rising90 offences/mo → 128 offences/mo
Monthly avg: 127Peak: 156Low: 90
Source: data.police.uk | Rolling 12 months
🏠
House Prices
-5.0%
Average
£717,301
Median
£660,000
Sales (12m)
281
YoY Change
+22.5%
Sales Volume
112
4
46
78
45
Source: HM Land Registry PPD | Aggregated to postcode district
🎓
Schools
6 nearby
Source: Ofsted | Distances from district centre
🚇
Transport
12 stops
Stations & stops
Bus stops
Source: NaPTAN / ATOC | Distances from district centre
👥
Demographics
329,984 residents
White
52.1%
Ldn 53.8%
Black
18.3%
Ldn 13.5%
Other
12.1%
Ldn 6.3%
Asian
11.5%
Ldn 20.7%
Mixed
5.9%
Ldn 5.7%
N21 has a similar ethnic makeup to the London average. The vertical markers show the London average.
Source: ONS Census 2021 (TS021, TS007a) | Aggregated from LSOA to postcode district
This page covers the N21 postcode district, which includes all postcodes starting with N21 (e.g. N21 3RG, N21 4AB, N21 5XX). All postcodes within N21 share the same district-level data.
Data last updated March 2026 · Official UK government sources