Upper Sydenham
Middle areaSouth west Lewisham. 7,084 people (mid-2024 estimate) in 0.8 square kilometres.
Radon Affected Area by middle area
Worked out by Open Index · 2022
About 0% of people in Upper Sydenham live in a 1 km square that the radon atlas marks as a radon Affected Area.
Recorded crime in Upper Sydenham
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Upper Sydenham at a rate of 78.3 per 1,000 people.
That compares with 122.7 per 1,000 people across Lewisham.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
| Kind of crime | Recorded |
|---|---|
| Violence and sexual offences | 194 |
| Anti-social behaviour | 116 |
| Other crime | 92 |
| Vehicle crime | 50 |
| Burglary | 29 |
| Drug offences | 27 |
| Criminal damage and arson | 20 |
| Robbery | 13 |
| Theft from the person | 10 |
| Shoplifting | 4 |
Source: police.uk, 12 months to August 2026
How Upper Sydenham compares
Each dot is a middle area. The black line marks the middle one.
Is Upper Sydenham safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Upper Sydenham at a rate of 78.3 per 1,000 people.
That compares with 122.7 per 1,000 people across Lewisham.
Across England as a whole, the recorded crime rate was 96.3 per 1,000 people.
In August 2026 alone, 51 cases of crime and anti-social behaviour were recorded in Upper Sydenham.
In the 12 months to August 2026, the most common types were violence and sexual offences (194), anti-social behaviour (116) and other crime (92).
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Figures for the whole of Lewisham
These figures are published for the whole of Lewisham, not for each middle area, so they describe all of Lewisham and not Upper Sydenham alone. See Lewisham
Upper Sydenham in brief
The median price paid for a home in Upper Sydenham was £450,000 in 2025.
Upper Sydenham had 7,035 usual residents at the census.
About 0% of people in Upper Sydenham live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Upper Sydenham, 86.4% of homes and businesses could get gigabit-capable broadband in January 2026.