Our Data Sources
17, Heol Islwyn, Swansea has no recent1 records in the the Land Registry and a single entry in the EPC database dated February 2011.
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 17, Heol Islwyn, Swansea would be worth £342,297, with a potential rental value of £1,423 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £303,177, with a rental value of £1,261 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
17, Heol Islwyn, Swansea occupies a 340 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 11th largest.
Energy Efficiency
17, Heol Islwyn, Swansea has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 Feb 2011.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
17, Heol Islwyn, Swansea last changed hands on 21st July 2006, selling for £209,995. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
- Sold Jul 2006£209,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 58 sales of comparable properties within 1.3 kilometres of 17, 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.
More reading links
Location Comparison
Our analysis of the public data ranks 17, Heol Islwyn, Swansea as the 2nd largest and the most expensive of the 50 addresses on Heol Islwyn, Fforestfach, Swansea, SA5.
Against the SA5 postcode district average, it is £103k 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.
