Our Data Sources
15, Heol Islwyn, Porth has no records in the the Land Registry and a single entry in the EPC database dated June 2024.
We combine this information with public data 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 15, Heol Islwyn, Porth would be worth £151,260, with a potential rental value of £878 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £133,973, with a rental value of £778 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
15, Heol Islwyn, Porth occupies a 268 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 34th largest.
Energy Efficiency
15, Heol Islwyn, Porth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Jun 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 890 metres of 15, 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 May 2025£155,000 | 3 Bed House24, Manley Close, Porth, CF39 8NS24, Manley Close, Porth, CF39 8NS
- 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.
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Location Comparison
Our analysis of the public data ranks 15, Heol Islwyn, Porth as the 38th largest and the 38th most expensive of the 48 addresses on Heol Islwyn, Tonyrefail, Porth, CF39.
Against the CF39 postcode district average, it is £2k 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.












