Total Crime Rate
169.8 per 1,000
All offences · Oct 2024 - Sep 2025Trenewydd Road area has the 14th highest crime rate of 66 local areas in Pontprennau and Old St Mellons , and the 168th highest crime rate of 1,028 local areas in Cardiff .
Crime levels at this postcode are much higher than in the adjoining streets, suggesting that most neighbouring areas are relatively safer than this one.
The overall crime rate in the area around Trenewydd Road (CF3 1SR) in the last 12 months was 169.8 per 1,000 residents and was 116.3% higher 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 30 offences recorded. The least common crime was Other crime with 1 case , up 100.0% compared to 2024. The fastest-growing crime category was Shoplifting ( 200.0% YoY). The sharpest decline was Other theft ( -60.0% YoY).
Violent crimes totalled 38 (≈ 102.4 per 1,000 residents). Year-over-year these were falling ( -20.8% ). Over the last decade, overall crime has falling ( -31.6% comparing early vs recent averages) .
In the area around Trenewydd Road (CF3 1SR), the main crime hotspot is near Glan-Y-Mor Road. Police recorded 41 crimes here, including 22 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 | Violence and sexual offences | Trebanog Close | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Trebanog Close | Under investigation |
| Sep 2025 | Public order | Cemaes Crescent | Investigation complete; no suspect identified |
| Sep 2025 | Anti-social behaviour | Trebanog Close | — |
| Sep 2025 | Violence and sexual offences | Cemaes Crescent | Investigation complete; no suspect identified |
| Sep 2025 | Public order | Trebanog Crescent | Unable to prosecute suspect |
| Sep 2025 | Public order | Trebanog Crescent | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Hendre Road | Under investigation |
| Sep 2025 | Violence and sexual offences | Elmfield Close | Under investigation |
| Sep 2025 | Violence and sexual offences | Trowbridge Green | Under investigation |
| Sep 2025 | Other theft | Trowbridge Green | Investigation complete; no suspect identified |
| Sep 2025 | Criminal damage and arson | Trowbridge Green | Investigation complete; no suspect identified |
| Sep 2025 | Violence and sexual offences | Gwbert Close | Under investigation |
| Sep 2025 | Public order | Gwbert Close | Investigation complete; no suspect identified |
| Sep 2025 | Criminal damage and arson | Gwbert Close | Under investigation |
| Sep 2025 | Violence and sexual offences | Trebanog Close | Under investigation |
| Sep 2025 | Public order | Trecinon Road | Under investigation |
| Sep 2025 | Burglary | Glan-Y-Mor Road | Under investigation |
| Sep 2025 | Other crime | Clos Hafodyrynys | Under investigation |
| Sep 2025 | Violence and sexual offences | Plas Nanthelyg | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Abergele Close | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Morfa Crescent | Under investigation |
| Sep 2025 | Anti-social behaviour | Morfa Crescent | — |
| Sep 2025 | Anti-social behaviour | Pen Lasgan | — |
| Sep 2025 | Criminal damage and arson | Trecinon Road | Under investigation |
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.