Total Crime Rate
110.2 per 1,000
All offences · Oct 2024 - Sep 2025Harris Avenue area has the 29th highest crime rate of 66 local areas in Pontprennau and Old St Mellons , and the 326th 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 Harris Avenue (CF3 1QE) in the last 12 months was 110.2 per 1,000 residents and was 40.4% 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 20 offences recorded. The least common crime was Other crime with 1 case , unchanged from 2024. The fastest-growing crime category was Burglary ( 100.0% YoY). The sharpest decline was Vehicle crime ( -20.0% YoY).
Violent crimes totalled 27 (≈ 56.1 per 1,000 residents). Year-over-year these were rising ( 12.5% ). Over the last decade, overall crime has falling ( -30.6% comparing early vs recent averages) .
In the area around Harris Avenue (CF3 1QE), the main crime hotspot is near Penrhos Crescent. Police recorded 22 crimes here, including 13 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 | Bicycle theft | Llandudno Road | Investigation complete; no suspect identified |
| Sep 2025 | Violence and sexual offences | Llandudno Road | Under investigation |
| Sep 2025 | Criminal damage and arson | Letterston Road | Under investigation |
| Sep 2025 | Public order | Holmsview Close | Unable to prosecute suspect |
| Sep 2025 | Anti-social behaviour | Letterston Road | — |
| Sep 2025 | Anti-social behaviour | Harris Avenue | — |
| Sep 2025 | Violence and sexual offences | Penrhos Crescent | Under investigation |
| Sep 2025 | Criminal damage and arson | Heron Road | Investigation complete; no suspect identified |
| Sep 2025 | Criminal damage and arson | Heron Road | Under investigation |
| Sep 2025 | Violence and sexual offences | Relf Road | Unable to prosecute suspect |
| Sep 2025 | Violence and sexual offences | Relf Road | Under investigation |
| Sep 2025 | Violence and sexual offences | Llandudno Road | Unable to prosecute suspect |
StreetScan crime figures are based on official UK open data:
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