Our Data Sources
42, Heol Islwyn, Porth has a single entry in the Land Registry from December 2012 and a single entry in the EPC database dated April 2012.
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
In very good condition, we estimate 42, Heol Islwyn, Porth would be worth £152,233, with a potential rental value of £881 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £134,835, with a rental value of £780 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
42, Heol Islwyn, Porth occupies a 431 m2 plot as recorded by HM Land Registry.
All 48 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.
Energy Efficiency
42, Heol Islwyn, Porth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Apr 2012.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
42, Heol Islwyn, Porth last changed hands on 3rd December 2012, selling for £78,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 54.5% since December 2012.
- Sold Dec 2012£78,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 840 metres of 42, Heol Islwyn, Porth across the last 2 years.
Most recently, 15, Winslade Avenue, Porth, CF39 8NP, a freehold house, sold at £156,000 on the 13th January 2026.
Read more about house prices in CF39.
- Sold Jan 2026£156,000 | 3 Bed House15, Winslade Avenue, Porth, CF39 8NP15, Winslade Avenue, Porth, CF39 8NP
- Sold Jul 2024£135,000 | 3 Bed House13, Winslade Avenue, Porth, CF39 8NP13, Winslade Avenue, Porth, CF39 8NP
- Sold Oct 2023£125,000 | 3 Bed House41, Heol Islwyn, Porth, CF39 8NR41, Heol Islwyn, Porth, CF39 8NR
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 42, Heol Islwyn, Porth as the 37th largest and the 36th most expensive of the 48 addresses on Heol Islwyn, Tonyrefail, Porth, CF39.
Against the CF39 postcode district average, it is £724 less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- 3.1kmPorth
- 3.5kmDinas (Rhondda)
- 3.9kmTonypandy
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.












