About Trethomas
Trethomas is a village located in the Caerphilly county borough of Wales, within the postcode area CF83. It lies approximately five miles north of Cardiff, making it a convenient location for those who wish to access the capital city while enjoying a quieter residential environment. The village features a range of local amenities, including shops, schools, and parks, catering to the needs of its residents. The area is characterised by its mix of modern housing and older properties, reflecting its development over the years. Trethomas is well-connected by public transport, with bus services linking it to nearby towns and cities. The surrounding countryside offers opportunities for outdoor activities, including walking and cycling, making it a suitable place for those who appreciate nature and a community atmosphere.
School Ratings in Trethomas
Families in Trethomas have access to 70 local schools.
House Prices in Trethomas
Homes sell for an average of £211K locally. Most of the housing is made up of semi-detached homes, averaging £189K.
Crime and Anti-Social Behaviour in Trethomas
Crime in the area is lower than the national average.
Broadband and Mobile Internet in Trethomas
Trethomas benefits from solid broadband infrastructure, including superfast and ultrafast services. Mobile reception across 4G and 5G is dependable in most locations. For the latest speed predictions, visit Ofcom's broadband checker.
Property Prices 6,682 sales
Schools & Education 12 nearby View all schools
Crime in Trethomas 2 crimes · January 2026
Crime levels in Trethomas are lower than the England and Wales average. While violence & sexual offences is the most frequently recorded category, the overall picture is one of a settled and secure town where serious incidents remain uncommon.
Crime figures depend on reporting by individual police forces and may not reflect the full picture in all areas.