SM4 is a district with notable trade-offs with strong education and health scores. However, affordability and safety scores are below average. Average house prices of £497K sit close to the London median, and crime levels are 27% below the London average.
Best for:Health-conscious residents
🛡️Safety
23
27% below avg
🎓Schools
74
100% Good or Outstanding
🚇Transport
75
4 rail stations nearby
💷Afford.
20
Avg £497,218
🌿Environ.
24
Good air quality · 31% green
❤️Health
87
1/4 GPs accepting patients
📚Education
96
Above average
👥Community
79
Strong community
🛡️
Crime & Safety
27% below avg
Stable287 offences/mo → 291 offences/mo
Monthly avg: 297Peak: 348Low: 254
Source: data.police.uk | Rolling 12 months
🏠
House Prices
+2.2%
Average
£497,218
Median
£500,000
Sales (12m)
299
YoY Change
-25.5%
Sales Volume
112
9
52
76
59
Source: HM Land Registry PPD | Aggregated to postcode district
🎓
Schools
11 nearby
Source: Ofsted | Distances from district centre
🚇
Transport
18 stops
Stations & stops
Bus stops
Source: NaPTAN / ATOC | Distances from district centre
👥
Demographics
215,187 residents
White
60.2%
Ldn 53.8%
Asian
18.6%
Ldn 20.7%
Black
10.6%
Ldn 13.5%
Mixed
5.9%
Ldn 5.7%
Other
4.6%
Ldn 6.3%
SM4 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 SM4 postcode district, which includes all postcodes starting with SM4 (e.g. SM4 3RG, SM4 4AB, SM4 5XX). All postcodes within SM4 share the same district-level data.
Data last updated March 2026 · Official UK government sources