SE21 postcode district road traffic accidents
The SE21 postcode district recorded 1,107 collisions in the STATS19 data between 1999 and 2025, involving 1,299 casualties. Of these collisions, 6 were fatal and 148 were serious. Recorded collisions in 2025 were up 13% on 2024.
Severity Breakdown
- Fatal
- 6
- Serious
- 148
- Casualties
- 1,299
- Fatal
- 6
- Serious
- 148
- Casualties
- 1,299
Collisions by Year
Areas covering SE21
Towns in SE21
Roads in SE21
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the SE21 postcode district
Road collision statistics for the SE21 postcode district
Collisions recorded
1,107
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
1,299
Casualties recorded across every collision in this area.
Fatal collisions
6
Collisions in which at least one person died.
Serious collisions
148
13.9% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the SE21 postcode district
Collisions in the SE21 postcode district are most frequently recorded on a Wednesday (17% of the total), with 32.9% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
86.4% of recorded collisions in the SE21 postcode district happen on a single carriageway. Around 18% were recorded in adverse weather such as rain, snow or fog.
The collisions in the SE21 postcode district have produced 1,299 casualties. Pedestrians account for 10.6% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 130 collisions, Monday 143 collisions, Tuesday 177 collisions, Wednesday 188 collisions, Thursday 162 collisions, Friday 162 collisions, Saturday 145 collisions.
Light conditions
Light conditions: Daylight 743 collisions, Darkness 364 collisions.
Road type
Road type: Single carriageway 957 collisions, Dual carriageway 59 collisions, Roundabout 55 collisions, Unknown 18 collisions, One way street 13 collisions, Slip road 3 collisions, One way street/Slip road 2 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 216 collisions, 30 mph 885 collisions, 40 mph 5 collisions, 50 mph 1 collisions.
Weather at the time
Weather at the time: Fine no high winds 900 collisions, Raining no high winds 135 collisions, Unknown 27 collisions, Other 26 collisions, Fine + high winds 8 collisions.
Who was hurt
Who was hurt: Driver or rider 961 casualties, Passenger 200 casualties, Pedestrian 138 casualties.
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Recent Accidents
Showing 13 of 953 accidents
Accident 199901MM00127
SlightAccident 199901LS00082
SlightAccident 199901MM00106
SlightAccident 199901LS00071
SlightAccident 199901LS00066
SlightAccident 199901LS00075
SlightAccident 199901MM00085
SlightAccident 199901MM00266
SlightAccident 199901LS00063
SlightAccident 199901MM00077
SlightAccident 199901LS00045
SlightAccident 199901MM00043
SlightAccident 199901LS00037
SlightFrequently asked questions about road accidents in the SE21 postcode district
How many road accidents have there been in the SE21 postcode district?
1,107 collisions have been recorded in the SE21 postcode district in the STATS19 road safety data between 1999 and 2025, involving 1,299 casualties.
How many of the collisions in the SE21 postcode district were serious or fatal?
6 were fatal and 148 were serious — 13.9% of all recorded collisions in the SE21 postcode district resulted in a death or serious injury.
When do most road accidents happen in the SE21 postcode district?
Wednesday is the most common day for collisions in the SE21 postcode district, accounting for 17% of them, and 32.9% of all collisions here happen in darkness.
What kind of roads do collisions in the SE21 postcode district happen on?
86.4% of collisions in the SE21 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the SE21 postcode district?
Pedestrians make up 10.6% of the 1,299 casualties recorded in the SE21 postcode district.
Is road safety in the SE21 postcode district getting better or worse?
Recorded collisions in the SE21 postcode district rose 13% in 2025 compared with 2024. Year-on-year figures move with both genuine risk and changes in reporting, so they are best read as a trend rather than a single verdict.
Where does the road accident data for the SE21 postcode district come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for the SE21 postcode district cover 1999 to 2025.