Which is cheaper, SE18 or SE21?

SE18 has lower house prices at £415,000 median vs £680,255. Difference: £265,255.

Which is safer, SE18 or SE21?

SE21 has fewer recorded crimes (1,550 vs 12,465 over 13 months).

Which has better schools, SE18 or SE21?

both equally has more Outstanding Ofsted schools (5 vs 5).

Which has better broadband, SE18 or SE21?

SE18 scores higher at 77/100 vs 59/100.

SE18 vs SE21: Area Comparison

Side-by-side comparison of SE18 London and SE21 London covering house prices, crime, schools, broadband, council tax, green space and energy performance.

At a Glance

SE18 is the more affordable option at £415,000 median vs £680,255 in SE21. SE21 has lower recorded crime (1,550 vs 12,465 offences over 13 months). SE18 has notably better broadband connectivity.

Key Statistics

Metric	SE18 London	SE21 London
Median House Price	£415,000	£680,255
Band D Council Tax	£2,108	£1,967
Total Crimes (13 months)	12,465	1,550
Outstanding Schools	5.0	5.0
Broadband Score (/100)	77.2	59.2
Green Space Access (%)	100.0	100.0
EPC Median Score	72.0	67.0

Explore Each Area

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Data Sources

House prices: HM Land Registry Price Paid Data (2025–2026). Crime: police.uk (Apr 2025–Apr 2026). Schools: Ofsted inspection outcomes. Broadband: Ofcom Connected Nations. Council tax: DLUHC. Green space: OS OpenData.