
Detached
£369,189
40% above the Bedwas, Trethomas and Machen average
26.3% of sales
The average house price in Bedwas, Trethomas and Machen is £264,052, based on 126 homes sold in the 12 months to August 2026. Prices are up 7.4% (£18,176) on a year earlier.
Sold prices from HM Land Registry, not asking prices. How we calculate this
Average sold price by property type, and each type's share of recent sales.

£369,189
40% above the Bedwas, Trethomas and Machen average
26.3% of sales

£258,519
2% below the Bedwas, Trethomas and Machen average
40.3% of sales

£208,790
21% below the Bedwas, Trethomas and Machen average
31.9% of sales

£102,000
61% below the Bedwas, Trethomas and Machen average
1.6% of sales
House prices in Bedwas, Trethomas and Machen are rising: up 7.4% (£18,176) over the past year. Over the past 10 years, prices are up 62.5% (£101,522).
+7.4%
+£18,176From £245,876 to £264,052
+62.5%
+£101,522From £162,530 to £264,052
8 key facts at a glance.
£501,117
126
Semi-detached houses
£200k - £300k
10,461
Population density is Very High, on a scale from Very Low to Very High.
Usual residents, including communal establishments.
4,471
Household density is Very High, on a scale from Very Low to Very High.
Occupied households, not communal establishments.
52 m² per resident
3.0% of the area · 5 public parks. Parks, playing fields, allotments and other public green space, not counting golf courses. Contains OS data © Crown copyright and database right 2026.
3rd most expensive area of Caerphilly.
Compared with 26 areas
The highest recorded sale prices in Bedwas, Trethomas and Machen, from HM Land Registry.
Bedwas, Trethomas and Machen compared with the 6 nearest other areas in Caerphilly.
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There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.
What to check before you buyPrice information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026.
Last updated 7 October 2026 at 02:05 with the latest Land Registry data (August 2026). The Bedwas, Trethomas and Machen dataset covers 547 postcodes.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.