Total Crime Rate
51.4 per 1,000
All offences · Oct 2024 - Sep 2025Clos Nant Ddu area has the 22nd lowest crime rate of 66 local areas in Pontprennau and Old St Mellons , and the 440th lowest crime rate of 1,028 local areas in Cardiff .
Compared with the surrounding streets, this postcode does not stand out as either a particular hotspot or an unusually safe pocket. Crime levels in the neighbouring output areas are broadly in line with this area.
The overall crime rate in the area around Clos Nant Ddu (CF23 8LF) in the last 12 months was 51.4 per 1,000 residents and was 34.5% lower than the Pontprennau and Old St Mellons average (78.5 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 8 offences recorded. The least common crime was Burglary with 1 case , unchanged from 2024. The fastest-growing crime category was Criminal damage and arson ( 100.0% YoY). The sharpest decline was Violence and sexual offences ( -27.3% YoY).
Violent crimes totalled 13 (≈ 27.8 per 1,000 residents). Year-over-year these were rising ( 18.2% ). Over the last decade, overall crime has falling ( -36.9% comparing early vs recent averages) .
In the area around Clos Nant Ddu (CF23 8LF), the main crime hotspot is near Crawford Drive. Police recorded 12 crimes here, including 8 violent or public-order offences. All these locations are within roughly 0.3 miles.
View Crime In Pontprennau and Old St Mellons| Month | Crime | Location* | Last Outcome |
|---|---|---|---|
| Sep 2025 | Anti-social behaviour | Maes Y Hedydd | — |
| Sep 2025 | Public order | Naseby Close | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Youghal Close | Under investigation |
| Sep 2025 | Criminal damage and arson | Hotham Close | Under investigation |
| Sep 2025 | Violence and sexual offences | Clos Alyn | Under investigation |
| Sep 2025 | Anti-social behaviour | Clos Cwm Creunant | — |
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.