Our Data Sources
15, Trem Y Castell, Caerphilly has 21 entries in the Land Registry, most recently in June 2021 and a single entry in the EPC database dated June 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 15, Trem Y Castell, Caerphilly would be worth £330,731, with a potential rental value of £1,648 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £292,933, with a rental value of £1,459 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
15, Trem Y Castell, Caerphilly occupies a 220 m2 plot as recorded by HM Land Registry.
Of the 20 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 9th largest.
Energy Efficiency
15, Trem Y Castell, Caerphilly has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Jun 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
15, Trem Y Castell, Caerphilly last changed hands on 18th June 2021, selling for £185,000. The transaction was logged as a leasehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 2.5% since June 2021.
- Sold Jun 2021£185,000
- Sold Dec 1996£56,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 231 sales of comparable properties within 910 metres of 15, Trem Y Castell, Caerphilly since 2017.
Most recently, 18, Trem Y Castell, Caerphilly, CF83 1TH, a freehold house, sold at £325,000 on the 20th November 2025.
Read more about house prices in CF83.
- Sold Nov 2025£325,000 | 4 Bed House18, Trem Y Castell, Caerphilly, CF83 1TH18, Trem Y Castell, Caerphilly, CF83 1TH
- 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
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £296,871, ranging from £242,474 to £363,385.
- 16 Trem Y Castell
3 Bed House | 5 m | Est. Value: £255,837
- 10 Heol Tyddyn
3 Bed House | 14 m | Est. Value: £294,778
- 13 Trem Y Castell
3 Bed House | 15 m | Est. Value: £264,383
- 12 Trem Y Castell
3 Bed House | 21 m | Est. Value: £265,367
- 17 Trem Y Castell
4 Bed House | 23 m | Est. Value: £336,990
Location Comparison
Our analysis of the public data ranks 15, Trem Y Castell, Caerphilly as the 8th largest and the 9th most expensive of the 20 addresses on Trem Y Castell, Caerphilly, CF83.
Against the CF83 postcode district average, it is £84k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Aber|1.3 km away
- Caerphilly|2.0 km away
- Energlyn & Churchill Park|2.0 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












