CF83: Caerphilly, Bedwas and Trethomas

If you're looking at CF83, one of Caerphilly's postcode districts, this page puts the official data in one place, from house prices and energy ratings to schools and crime.

There are around 21,400 homes in CF83, in places including Caerphilly, Bedwas, Trethomas and Abertridwr. Semi-detached and terraced houses sell in similar numbers here, each about 37% of sales.

Homes in CF83 sold for about £215,000 on average in the five years to August 2026, up 34% on the five years before. That compares with about £180,000 across Caerphilly over the same five years. Most of the district sits outside mapped flood risk areas.

All figures come from official sources, listed at the bottom of this page.

Of the homes sold in the five years to August 2026, 37% were semi-detached houses, 37% were terraced houses, 22% were detached houses and 4% were flats. 6% were leasehold and 6% were new builds (228 sales).

The latest EPC rating of each of the 21,375 homes on record, from the EPC register. Most are rated C and D, and 22% have no EPC on record.

• A1% (220)
• B7% (1,442)
• C31% (6,660)
• D30% (6,379)
• E8% (1,687)
• F1% (229)
• Gunder 1% (46)
• None22% (4,712)

23 state schools have a CF83 postcode, and 2 more are within a mile of one of its postcodes. Being near a school is not the same as being in its catchment: check admissions with the council.

Estyn, the inspectorate for schools in Wales, stopped giving schools an overall grade from spring 2022, so there is no single rating to show. Each school's inspection reports are on estyn.gov.wales.

We checked the centre of each of CF83's 1,207 postcodes against the flood risk maps from Natural Resources Wales. 1,113 sit outside every mapped area, and 94 are in one: 6 at high risk, 25 at medium risk and 63 at low risk. The centre of a postcode is not each home in it, so check an exact address on NRW's flood risk map.

• High risk from rivers or surface water and small watercourses: Greater than a 1 in 30 (3.3%) chance of flooding each year.
• Medium risk from rivers or surface water and small watercourses: Between a 1 in 100 (1%) and a 1 in 30 (3.3%) chance of flooding each year.
• Low risk from rivers or surface water and small watercourses: Between a 1 in 1,000 (0.1%) and a 1 in 100 (1%) chance of flooding each year.

The sentence above counts each postcode once, at its highest risk. The table counts it under each source, so a postcode at risk from more than one source appears more than once.

NRW's map takes into account the effect of flood defences where it has information on them. Defences reduce the chance of flooding but do not completely stop it, as they can be overtopped or fail.

324 postcode centres are in areas NRW is reviewing, so the risk there may change.

Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute. Contains OS data © Crown copyright and database right.

CF83 has 1,100 postcodes with homes, in 5 sectors. Search above by postcode or street, or open a sector below and choose a postcode to check a home there. Each postcode is shown with its main street.