Our Data Sources
15, Heol Islwyn, Swansea has no recent1 records in the the Land Registry and a single entry in the EPC database dated April 2021.
We combine this information with public data 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.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 15, Heol Islwyn, Swansea, we estimate a market value of £159,929 and a rental value of £1,072 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £141,651 and £950 per month respectively.
Plot Size
HM Land Registry records the plot of land for 15, Heol Islwyn, Swansea as measuring 182 m2.
That makes it the 15th largest plot in the postcode, where 23 of the 28 other houses have recorded plot data.
Energy Efficiency
15, Heol Islwyn, Swansea has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Apr 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 15, Heol Islwyn, Swansea completed on 30th August 2001 at £30,750 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Aug 2001£30,750
- Sold Jul 2001£32,000
Similar Properties Sold Nearby
Over the past 2 years 37 properties similar to 15, Heol Islwyn, Swansea have sold within a radius of 900 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 10th October 2025, was 13, Heol Islwyn, Swansea, SA4 4LJ, a freehold house which sold for £142,000.
Read more about house prices in SA4.
- Sold Oct 2025£142,000 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
- Sold Jul 2021£104,950 | 3 Bed House11, Heol Islwyn, Swansea, SA4 4LJ11, Heol Islwyn, Swansea, SA4 4LJ
- Sold Dec 2019£103,000 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 28 addresses on Heol Islwyn, Gorseinon, Swansea, SA4, 15, Heol Islwyn, Swansea comes out as the 23rd largest and the 18th most expensive in our analysis of the public data.
It is also £80k less expensive than the average property across the SA4 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llangennech|2.8 km away
- Gowerton|3.4 km away
- Bynea|3.8 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
