KT21 is a mixed but generally solid area with strong community and education scores. However, schools and affordability scores are below average. Average house prices of £710K are 1.3× the London median, and crime levels are 88% below the London average.
🛡️Safety
72
88% below avg
🎓Schools
—
100% Good or Outstanding
🚇Transport
26
1 rail stations nearby
💷Afford.
6
Avg £709,965
🌿Environ.
70
Good air quality · 31% green
❤️Health
94
0/2 GPs accepting patients
📚Education
97
Above average
👥Community
98
Strong community
🛡️
Crime & Safety
88% below avg
Declining44 offences/mo → 38 offences/mo
Monthly avg: 50Peak: 72Low: 32
Source: data.police.uk | Rolling 12 months
🏠
House Prices
-2.6%
Average
£709,965
Median
£690,000
Sales (12m)
137
YoY Change
+18.9%
Sales Volume
51
10
25
37
24
Source: HM Land Registry PPD | Aggregated to postcode district
🎓
Schools
4 nearby
Source: Ofsted | Distances from district centre
🚇
Transport
12 stops
Stations & stops
Bus stops
Source: NaPTAN / ATOC | Distances from district centre
👥
Demographics
87,384 residents
White
92.7%
Ldn 53.8%
Asian
3%
Ldn 20.7%
Mixed
2.5%
Ldn 5.7%
Other
0.9%
Ldn 6.3%
Black
0.8%
Ldn 13.5%
KT21 is significantly less diverse than the London average, with 92.7% identifying as White compared to 53.8% across London. The vertical markers show the London average.
Source: ONS Census 2021 (TS021, TS007a) | Aggregated from LSOA to postcode district
This page covers the KT21 postcode district, which includes all postcodes starting with KT21 (e.g. KT21 3RG, KT21 4AB, KT21 5XX). All postcodes within KT21 share the same district-level data.
Data last updated March 2026 · Official UK government sources