Our Data Sources
23, Heol Islwyn, Swansea has a single entry in the Land Registry from April 2007 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the 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 23, Heol Islwyn, Swansea, we estimate a market value of £185,125 and a rental value of £1,162 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £163,968 and £1,029 per month respectively.
Plot Size
HM Land Registry records the plot of land for 23, Heol Islwyn, Swansea as measuring 189 m2.
That makes it the 13th largest plot in the postcode, where 23 of the 28 other houses have recorded plot data.
Sold Prices
The most recent sale of 23, Heol Islwyn, Swansea completed on 20th April 2007 at £117,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 49.7% over the period since April 2007.
- Sold Apr 2007£117,000
Similar Properties Sold Nearby
Over the past 2 years 171 properties similar to 23, Heol Islwyn, Swansea have sold within a radius of 910 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 22nd January 2026, was 41, Beech Crescent, Swansea, SA4 4YR, a freehold house which sold for £170,000.
Read more about house prices in SA4.
- Sold Jan 2026£170,000 | 3 Bed House41, Beech Crescent, Swansea, SA4 4YR41, Beech Crescent, Swansea, SA4 4YR
- Sold Dec 2021£134,000 | 3 Bed House7, Heol Islwyn, Swansea, SA4 4LJ7, Heol Islwyn, Swansea, SA4 4LJ
- Sold Dec 2021£169,995 | 3 Bed House88, Heol Gwenallt, Swansea, SA4 4JN88, Heol Gwenallt, Swansea, SA4 4JN
•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, 23, Heol Islwyn, Swansea comes out as the 3rd largest and the 12th most expensive in our analysis of the public data.
It is also £56k 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.
