Heol IslwynHouse Prices / Wales, Swansea
Last updated Jun 2026
Key Street Insights
Heol Islwyn is a residential street with 28 addresses.
It ranks as the 693rd largest and 214th most expensive of the 1,076 streets in the SA4 area. The dominant property type is a mid-century house built between 1936 and 1979.
The street contains a total of 28 properties: 28 houses.
28
Properties
- Houses
Key Street Insights
Heol Islwyn is a residential street with 28 addresses.
It ranks as the 693rd largest and 214th most expensive of the 1,076 streets in the SA4 area. The dominant property type is a mid-century house built between 1936 and 1979.
The street contains a total of 28 properties: 28 houses.
28
Properties
- Houses
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House Priceson Heol Islwyn
Sale prices range from £146,066 for 3 bedroom leasehold houses with a garden (731 ft2) to £242,451 for 3 bedroom freehold houses with a garden (1,085 ft2) .
Monthly rental prices range from £982 pcm for 3 bed houses to £1,238 pcm for 3 bed houses.
The gross rental yield is between 6.1% and 8.1%.
The average value per square foot is £205.
Average Sale Value
£180,372
Average Rental Value
£1,082 pcm
Average Rental Yield
7.2% /year
Average Value Per Sqft
£205 /ft2
Sales Market Trendson Heol Islwyn
The last sale on Heol Islwyn sold for £142,000 on 10th October 2025. Since then prices are up an average of 1.5%.
The current average value in the street is £180,372.
The Heol Islwyn Sales Market has increased by 70.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 2.5% | £180,372 |
| May 2025 | 5.3% | £175,972 |
| May 2024 | 4.1% | £167,147 |
| May 2023 | 2.2% | £160,516 |
| May 2022 | 12.3% | £157,075 |
| May 2021 | 13.4% | £139,823 |
| May 2020 | 5.4% | £123,327 |
| May 2019 | 0.4% | £117,013 |
| May 2018 | 10.9% | £116,586 |
| May 2017 | -0.7% | £105,157 |
| May 2016 | 1.9% | £105,867 |
| May 2015 | 1.8% | £103,897 |
| May 2014 | 3% | £102,057 |
| May 2013 | -0.5% | £99,091 |
| May 2012 | -2.9% | £99,585 |
| May 2011 | -1.4% | £102,596 |
| May 2010 | 6.2% | £104,050 |
| May 2009 | -14.2% | £97,992 |
| May 2008 | -0.5% | £114,168 |
| May 2007 | 0% | £114,753 |
Rental Market Trendson Heol Islwyn
The current average rental value in the street is £1,082.
The Heol Islwyn Rental Market has increased by 70.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 4.1% | £1,082pcm |
| May 2025 | 5% | £1,039pcm |
| May 2024 | 6.4% | £990pcm |
| May 2023 | 7.7% | £930pcm |
| May 2022 | 14.6% | £864pcm |
| May 2021 | 8.6% | £754pcm |
| May 2020 | 1.3% | £694pcm |
| May 2019 | 2.9% | £685pcm |
| May 2018 | 1.4% | £665pcm |
| May 2017 | 3.7% | £656pcm |
| May 2016 | 3.1% | £633pcm |
| May 2015 | 0.7% | £614pcm |
| May 2014 | 2% | £609pcm |
| May 2013 | 0.1% | £598pcm |
| May 2012 | 1.8% | £597pcm |
| May 2011 | -0.8% | £587pcm |
| May 2010 | 2.2% | £591pcm |
| May 2009 | -6.6% | £579pcm |
| May 2008 | 4.6% | £619pcm |
| May 2007 | 0% | £592pcm |
Explore Propertieson Heol Islwyn, Gorseinon, Swansea, SA4
- 1, Heol Islwyn, Swansea, SA4 4LJ
- 2, Heol Islwyn, Swansea, SA4 4LJ
- 3, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 4, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 5, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 6, Heol Islwyn, Swansea, SA4 4LJ3 bed house
- 7, Heol Islwyn, Swansea, SA4 4LJ3 bed house
- 8, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 9, Heol Islwyn, Swansea, SA4 4LJ
- 10, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 11, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 12, Heol Islwyn, Swansea, SA4 4LJ
- 13, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 15, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 17, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 19, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 21, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 23, Heol Islwyn, Swansea, SA4 4LJ3 bed house
- 25, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 27, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 29, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 31, Heol Islwyn, Swansea, SA4 4LJ3 bed modern house
- 33, Heol Islwyn, Swansea, SA4 4LJ
- 35, Heol Islwyn, Swansea, SA4 4LJ
- 37, Heol Islwyn, Swansea, SA4 4LJ
- 39, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 41, Heol Islwyn, Swansea, SA4 4LJ3 bed mid-century house
- 43, Heol Islwyn, Swansea, SA4 4LJ
Sales Historyon Heol Islwyn, Gorseinon, Swansea, SA4
The last sale was on 10th October 2025 for £142,000 and since then the market in the area has increased by 1.5%. The street has had a total of 57 sales since 1995.
Heol Islwyn, Gorseinon, Swansea, SA4 has seen 3 sales in the last three years and 1 sale in the last twelve months.
Sold Oct 2025£142,000 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 2025£140,000 | 3 Bed House17, Heol Islwyn, Swansea, SA4 4LJ17, Heol Islwyn, Swansea, SA4 4LJ
Sold Nov 2024£165,000 | 3 Bed House25, Heol Islwyn, Swansea, SA4 4LJ25, Heol Islwyn, Swansea, SA4 4LJ
Sold Dec 2021£134,000 | 3 Bed House7, Heol Islwyn, Swansea, SA4 4LJ7, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2021£104,950 | 3 Bed House11, Heol Islwyn, Swansea, SA4 4LJ11, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 2021£175,000 | 3 Bed House41, Heol Islwyn, Swansea, SA4 4LJ41, Heol Islwyn, Swansea, SA4 4LJ
Sold Jan 2021£108,000 | 3 Bed House27, Heol Islwyn, Swansea, SA4 4LJ27, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2020£85,000 | 3 Bed House21, Heol Islwyn, Swansea, SA4 4LJ21, Heol Islwyn, Swansea, SA4 4LJ
Sold Dec 2019£103,000 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 2019£98,000 | 3 Bed House19, Heol Islwyn, Swansea, SA4 4LJ19, Heol Islwyn, Swansea, SA4 4LJ
Sold Dec 2015£120,000 | 3 Bed House6, Heol Islwyn, Swansea, SA4 4LJ6, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2015£84,000 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
Sold Apr 2014£115,000 | 3 Bed House6, Heol Islwyn, Swansea, SA4 4LJ6, Heol Islwyn, Swansea, SA4 4LJ
Sold Jan 2014£125,000 | 3 Bed House41, Heol Islwyn, Swansea, SA4 4LJ41, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 2013£100,000 | 3 Bed House25, Heol Islwyn, Swansea, SA4 4LJ25, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 2012£84,000 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
Sold Apr 2011£148,000 | 3 Bed House8, Heol Islwyn, Swansea, SA4 4LJ8, Heol Islwyn, Swansea, SA4 4LJ
Sold Oct 2010£114,000 | 3 Bed House39, Heol Islwyn, Swansea, SA4 4LJ39, Heol Islwyn, Swansea, SA4 4LJ
Sold May 2010£91,000 | 3 Bed House17, Heol Islwyn, Swansea, SA4 4LJ17, Heol Islwyn, Swansea, SA4 4LJ
Sold Jan 2010£100,000 | 3 Bed House3, Heol Islwyn, Swansea, SA4 4LJ3, Heol Islwyn, Swansea, SA4 4LJ
Sold May 2009£83,000 | 3 Bed House27, Heol Islwyn, Swansea, SA4 4LJ27, Heol Islwyn, Swansea, SA4 4LJ
Sold Apr 2009£89,000 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
Sold Dec 2008£114,000 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
Sold Apr 2008£112,000 | 3 Bed House4, Heol Islwyn, Swansea, SA4 4LJ4, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 2008£106,500 | 3 Bed House11, Heol Islwyn, Swansea, SA4 4LJ11, Heol Islwyn, Swansea, SA4 4LJ
Sold Apr 2007£117,000 | 3 Bed House23, Heol Islwyn, Swansea, SA4 4LJ23, Heol Islwyn, Swansea, SA4 4LJ
Sold Dec 2006£67,900 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
Sold Oct 2006£118,000 | 3 Bed House31, Heol Islwyn, Swansea, SA4 4LJ31, Heol Islwyn, Swansea, SA4 4LJ
Sold Jan 2006£85,000 | 3 Bed House11, Heol Islwyn, Swansea, SA4 4LJ11, Heol Islwyn, Swansea, SA4 4LJ
Sold Nov 2005£92,000 | 3 Bed House19, Heol Islwyn, Swansea, SA4 4LJ19, Heol Islwyn, Swansea, SA4 4LJ
Sold Aug 2004£90,000 | 3 Bed House7, Heol Islwyn, Swansea, SA4 4LJ7, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 2004£99,995 | 3 Bed House29, Heol Islwyn, Swansea, SA4 4LJ29, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2003£57,999 | 3 Bed House21, Heol Islwyn, Swansea, SA4 4LJ21, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2003£83,000 | 3 Bed House37, Heol Islwyn, Swansea, SA4 4LJ37, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 2003£77,000 | 3 Bed House10, Heol Islwyn, Swansea, SA4 4LJ10, Heol Islwyn, Swansea, SA4 4LJ
Sold Nov 2002£51,250 | 3 Bed House17, Heol Islwyn, Swansea, SA4 4LJ17, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 2002£73,000 | 3 Bed House2, Heol Islwyn, Swansea, SA4 4LJ2, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2002£49,950 | 3 Bed House11, Heol Islwyn, Swansea, SA4 4LJ11, Heol Islwyn, Swansea, SA4 4LJ
Sold Aug 2001£30,750 | 3 Bed House15, Heol Islwyn, Swansea, SA4 4LJ15, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2001£32,000 | 3 Bed House15, Heol Islwyn, Swansea, SA4 4LJ15, Heol Islwyn, Swansea, SA4 4LJ
Sold Jul 2001£68,000 | 3 Bed House8, Heol Islwyn, Swansea, SA4 4LJ8, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 2001£45,500 | 3 Bed House4, Heol Islwyn, Swansea, SA4 4LJ4, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 2000£35,000 | 3 Bed House7, Heol Islwyn, Swansea, SA4 4LJ7, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 2000£42,000 | 3 Bed House25, Heol Islwyn, Swansea, SA4 4LJ25, Heol Islwyn, Swansea, SA4 4LJ
Sold May 2000£57,500 | 3 Bed House39, Heol Islwyn, Swansea, SA4 4LJ39, Heol Islwyn, Swansea, SA4 4LJ
Sold May 2000£33,000 | 3 Bed House3, Heol Islwyn, Swansea, SA4 4LJ3, Heol Islwyn, Swansea, SA4 4LJ
Sold Nov 1999£37,500 | 3 Bed House19, Heol Islwyn, Swansea, SA4 4LJ19, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 1999£53,000 | 3 Bed House2, Heol Islwyn, Swansea, SA4 4LJ2, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 1999£35,100 | 3 Bed House21, Heol Islwyn, Swansea, SA4 4LJ21, Heol Islwyn, Swansea, SA4 4LJ
Sold Aug 1998£43,000 | 3 Bed House6, Heol Islwyn, Swansea, SA4 4LJ6, Heol Islwyn, Swansea, SA4 4LJ
Sold Jun 1998£37,000 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
Sold Jan 1998£37,950 | 3 Bed House27, Heol Islwyn, Swansea, SA4 4LJ27, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 1997£34,950 | 3 Bed House3, Heol Islwyn, Swansea, SA4 4LJ3, Heol Islwyn, Swansea, SA4 4LJ
Sold Mar 1997£37,000 | 3 Bed House21, Heol Islwyn, Swansea, SA4 4LJ21, Heol Islwyn, Swansea, SA4 4LJ
Sold Nov 1996£35,950 | 3 Bed House13, Heol Islwyn, Swansea, SA4 4LJ13, Heol Islwyn, Swansea, SA4 4LJ
Sold Sep 1996£39,000 | 3 Bed House31, Heol Islwyn, Swansea, SA4 4LJ31, Heol Islwyn, Swansea, SA4 4LJ
Sold Aug 1996£36,500 | 3 Bed House19, Heol Islwyn, Swansea, SA4 4LJ19, Heol Islwyn, Swansea, SA4 4LJ
Top 3 Most Expensive Saleson Heol Islwyn, Gorseinon, Swansea, SA4
Nearby Streetsto Heol Islwyn, Gorseinon, Swansea, SA4
Heol Islwyn, Gorseinon, Swansea, SA4 is the 693rd largest and the 214th most expensive street in the SA4 area.
- 46 mHeol Elfed, Gorseinon, Swansea, SA414 Addresses
- 104 mWestgrove Court, Gorseinon, Swansea, SA413 Addresses
- 112 mHeol Dyfed, Gorseinon, Swansea, SA412 Addresses
- 132 mHeol Gwili, Gorseinon, Swansea, SA424 Addresses
- 155 mFfordd Morgan, Gorseinon, Swansea, SA444 Addresses
- 160 mHeol Crwys, Gorseinon, Swansea, SA416 Addresses
Postcodeson Heol Islwyn, Gorseinon, Swansea, SA4
There is 1 postcode on Heol Islwyn, Gorseinon, Swansea, SA4.
- House prices in SA4 4LJ28 Addresses
Property Typesin Heol Islwyn
- 6 modern houses built after 1980
- 11 mid-century houses built between 1936 and 1979
- 3 houses of an unknown age
- 8 other addresses of unknown type
- modern house (6)
- mid-century house (11)
- house (3)
- Unknown (8)
Energy Efficiencyof properties on Heol Islwyn
- Energy Performance Certificate (EPC) surveys conducted for 17 properties.
- The dominant rating is C.
- A (0)
- E (1)
- B (0)
- F (0)
- C (8)
- G (0)
- D (8)
- No EPC (11)
Schools Nearby
Public Transport Nearby
The closest station to Heol Islwyn, Gorseinon, Swansea, SA4 is Llangennech station, which is 2.8 kilometres away.
- 2.8kmLlangennech
- 3.4kmGowerton
- 3.8kmBynea
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