According to data from HM Land Registry, 18, Trem Y Castell, Caerphilly sits on a plot of 198 m².

We have plot size data on 19 out of 20 other houses in the postcode and 18, Trem Y Castell, Caerphilly sits on the 14th largest plot.

18, Trem Y Castell, Caerphilly has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 16 Apr 2024.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 18, Trem Y Castell, Caerphilly was last sold on 20th November 2025 for £325,000 and was recorded as a freehold house.

The property has had 4 sales since 1995.

Since November 2025, the market for similar properties has dropped by 19.0%.

• Sold Nov 2025£325,000
• Sold Oct 2007£207,000
• Sold Apr 2002£115,000

According to the Land Registry and our network of Estate Agents, there have been 251 sales of properties similar to 18, Trem Y Castell, Caerphilly within a radius of 880 metres since 2017.

The most recent example is 5, Beech Close, Caerphilly, CF83 1SF, a freehold house which sold for £340,000 on the 17th October 2025.

Read more about house prices in CF83.

• Sold Oct 2025£340,000 | 4 Bed House5, Beech Close, Caerphilly, CF83 1SF5, Beech Close, Caerphilly, CF83 1SF
• Sold Oct 2025£350,000 | 3 Bed House3, Clos Gwynle, Caerphilly, CF83 1TU3, Clos Gwynle, Caerphilly, CF83 1TU
• Sold Jun 2025£435,000 | 4 Bed House15, Gwaun Y Cwrt, Caerphilly, CF83 1TJ15, Gwaun Y Cwrt, Caerphilly, CF83 1TJ
• Sold May 2025£375,000 | 4 Bed House76, Cwrt Nant Y Felin, Caerphilly, CF83 1TP76, Cwrt Nant Y Felin, Caerphilly, CF83 1TP
• Sold Jan 2025£399,995 | 4 Bed House9, Meadow Way, Caerphilly, CF83 1SE9, Meadow Way, Caerphilly, CF83 1SE
• Sold Dec 2024£407,500 | 4 Bed House18, Meadow Way, Caerphilly, CF83 1TF18, Meadow Way, Caerphilly, CF83 1TF
• Sold Nov 2024£400,000 | 4 Bed House36, Meadow Way, Caerphilly, CF83 1TQ36, Meadow Way, Caerphilly, CF83 1TQ
• Sold Aug 2024£380,000 | 4 Bed House13, Meadow Way, Caerphilly, CF83 1TF13, Meadow Way, Caerphilly, CF83 1TF
• Sold Aug 2024£335,000 | 2 Bed House21, Badham Close, Caerphilly, CF83 1SH21, Badham Close, Caerphilly, CF83 1SH
• Sold Jul 2024£357,500 | 4 Bed House51, Meadow Way, Caerphilly, CF83 1TQ51, Meadow Way, Caerphilly, CF83 1TQ
• Sold Jun 2024£335,000 | 3 Bed House6, Beech Close, Caerphilly, CF83 1SF6, Beech Close, Caerphilly, CF83 1SF
• Sold Jun 2021£185,000 | 4 Bed House15, Trem Y Castell, Caerphilly, CF83 1TH15, Trem Y Castell, Caerphilly, CF83 1TH
• Sold May 2021£350,000 | 3 Bed House12, Meadow Way, Caerphilly, CF83 1TF12, Meadow Way, Caerphilly, CF83 1TF
• Sold Apr 2021£350,000 | 4 Bed House1, Heol Tyddyn, Caerphilly, CF83 1TG1, Heol Tyddyn, Caerphilly, CF83 1TG
• Sold Jan 2020£197,000 | 3 Bed House8, Meadow Way, Caerphilly, CF83 1SE8, Meadow Way, Caerphilly, CF83 1SE
• Sold Oct 2019£270,000 | 4 Bed House17, Trem Y Castell, Caerphilly, CF83 1TH17, Trem Y Castell, Caerphilly, CF83 1TH
• Sold May 2018£270,000 | 4 Bed House31, Gwaun Y Cwrt, Caerphilly, CF83 1TJ31, Gwaun Y Cwrt, Caerphilly, CF83 1TJ
• Sold May 2018£270,000 | 4 Bed House18, Heol Tyddyn, Caerphilly, CF83 1TG18, Heol Tyddyn, Caerphilly, CF83 1TG
• Sold Oct 2017£225,000 | 3 Bed House2, Heol Tyddyn, Caerphilly, CF83 1TG2, Heol Tyddyn, Caerphilly, CF83 1TG
• Sold Aug 2017£232,500 | 4 Bed House7, Trem Y Castell, Caerphilly, CF83 1TH7, Trem Y Castell, Caerphilly, CF83 1TH

Trem Y Castell, Caerphilly, CF83 has a total of 20 addresses. According to our analysis of all the public data, 18, Trem Y Castell, Caerphilly is the 7th largest and the 7th most expensive property on the street.

When compared to the postcode district it is £105k more expensive than the average property in CF83.

• Aber

  |

  1.3 km away
• Caerphilly

  |

  2.0 km away
• Energlyn & Churchill Park

  |

  2.0 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.