Our Data Sources
21, Heol Serth, Caerphilly has a single entry in the Land Registry from September 2010 and a single entry in the EPC database dated April 2010.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 21, Heol Serth, Caerphilly is in very good condition we estimate a sale value of £455,845 and a rental value of £1,950 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £403,748 and a rental value of £1,727 per month.
Plot Size
According to data from HM Land Registry, 21, Heol Serth, Caerphilly sits on a plot of 947 m2.
We have plot size data on 23 out of 23 other houses in the postcode and 21, Heol Serth, Caerphilly sits on the largest plot.
Energy Efficiency
21, Heol Serth, Caerphilly has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 29 Apr 2010.
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, 21, Heol Serth, Caerphilly was last sold on 7th September 2010 for £240,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since September 2010, the market for similar properties has risen by 63.7%.
- Sold Sep 2010£240,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 33 sales of properties similar to 21, Heol Serth, Caerphilly within a radius of 820 metres over the last 2 years.
The most recent example is 12, Cae Caradog, Caerphilly, CF83 2AA, a freehold house which sold for £385,000 on the 23rd July 2025.
Read more about house prices in CF83.
- Sold Jul 2025£385,000 | 4 Bed House12, Cae Caradog, Caerphilly, CF83 2AA12, Cae Caradog, Caerphilly, CF83 2AA
- Sold May 2022£335,000 | 4 Bed House7, Caledfryn Way, Caerphilly, CF83 2BW7, Caledfryn Way, Caerphilly, CF83 2BW
- Sold Sep 2021£336,000 | 4 Bed House20, Heol Serth, Caerphilly, CF83 2AN20, Heol Serth, Caerphilly, CF83 2AN
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Heol Serth, Caerphilly, CF83 has a total of 23 addresses. According to our analysis of all the public data, 21, Heol Serth, Caerphilly is the largest and the 3rd most expensive property on the street.
When compared to the postcode district it is £203k more expensive than the average property in CF83.
More reading links
Schools Nearby
Public Transport Nearby
- Energlyn & Churchill Park|1.4 km away
- Llanbradach|1.9 km away
- Aber|2.0 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.












