House Prices in Trethomas
House prices in Trethomas have an overall average of £204,421 over the last year.
The majority of properties sold in Trethomas during the last year were terraced properties, selling for an average price of £177,500. Semi-detached properties sold for an average of £191,000, with detached properties fetching £437,500.
Overall, the historical sold prices in Trethomas over the last year were 16% up on the previous year and 7% up on the 2023 peak of £191,083.
Properties Sold
44, Mary Street, Caerphilly CF83 8HN
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| 23 Feb 2026 | £170,000 |
| 23 Aug 2017 | £110,000 |
No other historical records.
15, Coronation Street, Caerphilly CF83 8DL
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| 10 Feb 2026 | £155,000 |
| 21 Apr 2015 | £82,500 |
No other historical records.
19, Redbrook Avenue, Trethomas CF83 8DB
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| 29 Jan 2026 | £189,000 |
No other historical records.
26, William Street, Caerphilly CF83 8DQ
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| 19 Dec 2025 | £205,000 |
| 5 Feb 2021 | £147,500 |
14, Lower Glyn-gwyn Street, Caerphilly CF83 8GA
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| 11 Dec 2025 | £235,000 |
| 7 Jul 1997 | £45,000 |
No other historical records.
11, Tynywern Terrace, Caerphilly CF83 8FP
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| 5 Dec 2025 | £220,000 |
| 21 May 2020 | £164,000 |
39, Newport Road, Caerphilly CF83 8DA
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| 3 Dec 2025 | £620,000 |
| 22 Jun 1999 | £134,000 |
No other historical records.
53, William Street, Caerphilly CF83 8FX
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| 12 Nov 2025 | £255,000 |
| 15 Feb 2005 | £173,000 |
Flat 3, Tudor Court, Bryn-y-fran Avenue, Caerphilly CF83 8BN
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| 7 Nov 2025 | £115,000 |
| 25 Apr 2018 | £82,500 |
6, William Street, Caerphilly CF83 8DQ
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| 1 Oct 2025 | £154,000 |
| 9 Oct 2015 | £97,500 |
6, Standard Street, Caerphilly CF83 8DE
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| 5 Sep 2025 | £230,000 |
| 12 Aug 2016 | £145,000 |
42, Mary Street, Caerphilly CF83 8HN
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| 2 Sep 2025 | £129,000 |
| 25 Nov 2016 | £21,700 |
No other historical records.
20, Hazel Grove, Trethomas CF83 8GU
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| 11 Aug 2025 | £215,000 |
No other historical records.
6, Ystrad Buildings, Newport Road, Caerphilly CF83 8BT
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| 4 Aug 2025 | £215,000 |
| 6 Nov 2015 | £130,000 |
No other historical records.
84, William Street, Caerphilly CF83 8FX
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| 25 Jul 2025 | £175,000 |
| 13 Dec 2019 | £128,000 |
72, William Street, Caerphilly CF83 8FX
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| 18 Jul 2025 | £160,000 |
| 4 Apr 2012 | £87,500 |
No other historical records.
56, William Street, Caerphilly CF83 8FX
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| 18 Jul 2025 | £162,000 |
| 21 Feb 2003 | £64,950 |
17, Bryn-y-fran Avenue, Trethomas CF83 8BN
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| 17 Jul 2025 | £125,000 |
No other historical records.
11, Thomas Street, Caerphilly CF83 8DP
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| 27 Jun 2025 | £155,000 |
| 25 Apr 2014 | £108,000 |
47, Mary Street, Trethomas CF83 8HN
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| 30 Apr 2025 | £141,000 |
No other historical records.
8, Thomas Street, Trethomas CF83 8DP
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| 8 Apr 2025 | £147,000 |
No other historical records.
43, Bryn-y-fran Avenue, Trethomas CF83 8GS
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| 4 Apr 2025 | £170,000 |
No other historical records.
16, Bryn-y-fran Avenue, Caerphilly CF83 8BN
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| 28 Mar 2025 | £212,500 |
| 3 Mar 2006 | £121,000 |
No other historical records.
16, Navigation Street, Caerphilly CF83 8DJ
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| 7 Feb 2025 | £180,000 |
| 16 Dec 2021 | £165,000 |
No other historical records.
25, Coronation Street, Caerphilly CF83 8DL
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| 17 Jan 2025 | £185,000 |
| 17 Oct 2003 | £73,000 |
No other historical records.
Source Acknowledgement: © Crown copyright. England and Wales house price data is publicly available information produced by the HM Land Registry.This material was last updated on 15 May 2026. It covers the period from 1 January 1995 to 31 March 2026 and contains property transactions which have been registered during that period. Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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