Crime Rates at Clos Alyn, Pontprennau, Cardiff, CF23 8LB

Clos Alyn area has the 13th lowest crime rate of 66 local areas in Pontprennau and Old St Mellons , and the 231st lowest crime rate of 1,013 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 Alyn (CF23 8LB) in the last 12 months was 26.8 per 1,000 residents and was 57.2% lower than the Pontprennau and Old St Mellons average (62.6 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 5 offences recorded. The least common crime was Anti-social behaviour with 1 case , unchanged from 2025. The fastest-growing crime category was Public order ( 100.0% YoY). The sharpest decline was Violence and sexual offences ( -16.7% YoY).

Violent crimes totalled 6 (≈ 20.1 per 1,000 residents). Year-over-year these were flat ( 0.0% ). Over the last decade, overall crime has falling ( -72.1% comparing early vs recent averages) .

In the area around Clos Alyn (CF23 8LB), the highest concentration of overall crime is near Wicklow Close, where police recorded 9 incidents. Violent and public-order offences occur most often near Naseby Close (6 offences). Both locations lie within roughly 0.3 miles of this postcode area.