Total Crime Rate

31.3 per 1,000 3/10 · Low

All offences · May 2025 - Apr 2026

Violent Crime Rate

18.3 per 1,000 4/10 · Low

May 2025 - Apr 2026
Latest update: 06.06.2026 Crime figures are sourced from data.police.uk and are typically published with a 3-month delay.
Crime rate per 1000 residents
  • All crimes 31.3 3/10
  • Violent crimes 18.3 4/10
  • Violence and sexual offences 15.7 4/10
  • Criminal damage and arson 5.2 4/10
  • Vehicle crime 5.2 5/10
  • Burglary 2.6 1/10
  • Possession of weapons 2.6 2/10
  • Anti-social behaviour 0.0 1/10
  • Bicycle theft 0.0 1/10
  • Drugs 0.0 1/10
  • Other crime 0.0 1/10
  • Other theft 0.0 1/10
  • Public order 0.0 1/10
  • Robbery 0.0 1/10
  • Shoplifting 0.0 1/10
  • Theft from the person 0.0 1/10
Values shown per 1,000 residents · May 2025 - Apr 2026 · Rating compares this oa to UK peers of the same type.
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Crime overview

Clos Derwen area has the 14th lowest crime rate of 36 local areas in Penylan , and the 269th lowest crime rate of 1,013 local areas in Cardiff .

This postcode forms a relatively safe pocket compared with the surrounding streets. Neighbouring areas record much higher crime levels, even though this postcode itself remains comparatively low-crime.

The overall crime rate in the area around Clos Derwen (CF23 5HJ) in the last 12 months was 31.3 per 1,000 residents and was 63.9% lower than the Penylan average (86.7 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 6 offences recorded. The least common crime was Burglary with 1 case , unchanged from 2025. The fastest-growing crime category was Violence and sexual offences ( 20.0% YoY). Other major crime categories were broadly unchanged compared to 2025.

Violent crimes totalled 7 (≈ 18.3 per 1,000 residents). Year-over-year these were rising ( 16.7% ). Over the last decade, overall crime has falling ( -67.9% comparing early vs recent averages) .

In the area around Clos Derwen (CF23 5HJ), the highest concentration of overall crime is near Montgomery Street, where police recorded 13 incidents. Violent and public-order offences occur most often near Further/Higher Educational Building (7 offences). Both locations lie within roughly 0.3 miles of this postcode area.

View Crime In Cardiff

Crime Over Time in Clos Derwen area

Showing crimes within 0.3 miles (9/9)
Month:
MonthCrimeLocation*Last Outcome
Apr 2026Criminal damage and arson Montgomery Street Investigation complete; no suspect identified
Apr 2026Violence and sexual offences Arnside Road Under investigation
Apr 2026Violence and sexual offences Further/Higher Educational Building Under investigation
Apr 2026Anti-social behaviour Langdale Close —
Apr 2026Vehicle crime Ty-Gwyn Road Awaiting court outcome
Apr 2026Bicycle theft Hendy Street Investigation complete; no suspect identified
Apr 2026Anti-social behaviour Montgomery Street —
Apr 2026Vehicle crime Diana Lane Under investigation
Apr 2026Vehicle crime Diana Lane Investigation complete; no suspect identified
* on or near this location Page 1 • Showing 9 of 9

Data Sources

StreetScan crime figures are based on official UK open data:

Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright and database right.

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