Our Data Sources
12, Heol Islwyn, Swansea has 31 entries in the Land Registry , most recently in May 2022 and a single entry in the EPC database dated June 2012.
We combine this information with that 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
In very good condition, we estimate 12, Heol Islwyn, Swansea would be worth £287,854, with a potential rental value of £1,369 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £254,956, with a rental value of £1,213 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
12, Heol Islwyn, Swansea occupies a 250 m2 plot as recorded by HM Land Registry.
All 50 other houses in this postcode have recorded plot sizes, and this one ranks as the 26th largest.
Energy Efficiency
12, Heol Islwyn, Swansea has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 11 Jun 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
12, Heol Islwyn, Swansea last changed hands on 11th May 2022, selling for £217,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 9.7% since May 2022.
- Sold May 2022£217,000
- Sold Feb 2019£160,000
- Sold Nov 2006£164,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 85 sales of comparable properties within 1.3 kilometres of 12, Heol Islwyn, Swansea across the last 2 years.
Most recently, 28, Heol Islwyn, Swansea, SA5 4NZ, a freehold house, sold at £318,000 on the 27th March 2026.
Read more about house prices in SA5.
- Sold Mar 2026£318,000 | 4 Bed House28, Heol Islwyn, Swansea, SA5 4NZ28, Heol Islwyn, Swansea, SA5 4NZ
- Sold Oct 2025£290,000 | 4 Bed House3, Heol Islwyn, Swansea, SA5 4NZ3, Heol Islwyn, Swansea, SA5 4NZ
- Sold Aug 2024£250,000 | 4 Bed House9, Heol Islwyn, Swansea, SA5 4NZ9, Heol Islwyn, Swansea, SA5 4NZ
•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 12, Heol Islwyn, Swansea as the 25th largest and the 25th most expensive of the 50 addresses on Heol Islwyn, Fforestfach, Swansea, SA5.
Against the SA5 postcode district average, it is £51k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Gowerton|2.8 km away
- Swansea|4.8 km away
- Llangennech|7.2 km away
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.
