Our Data Sources
18, Pentwyn Isaf, Caerphilly has 41 entries in the Land Registry , most recently in April 2026 and a single entry in the EPC database dated July 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 18, Pentwyn Isaf, Caerphilly is in very good condition we estimate a sale value of £479,557 and a rental value of £2,157 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £424,750 and a rental value of £1,911 per month.
Plot Size
According to data from HM Land Registry, 18, Pentwyn Isaf, Caerphilly sits on a plot of 562 m2.
We have plot size data on 31 out of 37 other houses in the postcode and 18, Pentwyn Isaf, Caerphilly sits on the 12th largest plot.
Energy Efficiency
18, Pentwyn Isaf, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Jul 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 18, Pentwyn Isaf, Caerphilly was last sold on 10th April 2026 for £440,000 and was recorded as a freehold house.
The property has had 4 sales since 1995.
Since April 2026, the market for similar properties has dropped by 3.0%.
- Sold Apr 2026£440,000
- Sold Aug 2002£110,000
- Sold Feb 2000£88,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 18 sales of properties similar to 18, Pentwyn Isaf, Caerphilly within a radius of 690 metres over the last 2 years.
The most recent example is 29, Pentwyn Isaf, Caerphilly, CF83 2NR, a freehold house which sold for £430,000 on the 6th February 2026.
Read more about house prices in CF83.
- Sold Feb 2026£430,000 | 4 Bed House29, Pentwyn Isaf, Caerphilly, CF83 2NR29, Pentwyn Isaf, Caerphilly, CF83 2NR
- Sold Feb 2024£389,000 | 5 Bed House12, Pentwyn Isaf, Caerphilly, CF83 2NR12, Pentwyn Isaf, Caerphilly, CF83 2NR
- Sold Aug 2017£290,000 | 5 Bed House10, Pentwyn Isaf, Caerphilly, CF83 2NR10, Pentwyn Isaf, Caerphilly, CF83 2NR
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Pentwyn Isaf, Caerphilly, CF83 has a total of 37 addresses. According to our analysis of all the public data, 18, Pentwyn Isaf, Caerphilly is the 20th largest and the 16th most expensive property on the street.
When compared to the postcode district it is £226k more expensive than the average property in CF83.
More reading links
Schools Nearby
Public Transport Nearby
- Energlyn & Churchill Park|800 m away
- Llanbradach|1.4 km away
- Aber|1.7 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
