| 37 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Mar 2025 | £152,000 | Semi-detached | Freehold |
| 4 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Nov 2024 | £170,000 | Semi-detached | Freehold |
| 25 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Nov 2024 | £100,000 | Semi-detached | Freehold |
| 26 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Aug 2024 | £191,000 | Semi-detached | Freehold |
| 8 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jul 2024 | £140,000 | Semi-detached | Freehold |
| 5 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Nov 2023 | £150,000 | Semi-detached | Freehold |
| 41 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Oct 2023 | £125,000 | Semi-detached | Freehold |
| 20 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jun 2023 | £150,000 | Semi-detached | Freehold |
| 2 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Aug 2022 | £160,000 | Semi-detached | Freehold |
| 14 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Nov 2019 | £110,000 | Semi-detached | Freehold |
| 33 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Mar 2015 | £66,000 | Semi-detached | Freehold |
| 9 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Dec 2014 | £80,000 | Semi-detached | Freehold |
| 23 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jul 2013 | £64,000 | Semi-detached | Freehold |
| 42 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Dec 2012 | £78,000 | Semi-detached | Freehold |
| 22 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jul 2011 | £100,000 | Semi-detached | Freehold |
| 3 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jan 2004 | £55,000 | Terraced | Freehold |
| 16 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Apr 2003 | £30,000 | Semi-detached | Freehold |
| 1A Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Sep 2001 | £23,950 | Semi-detached | Freehold |
| 43 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Apr 2001 | £33,000 | Terraced | Freehold |
| 40 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Nov 2000 | £31,995 | Semi-detached | Freehold |
| 30 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jun 1998 | £25,000 | Terraced | Freehold |
| 11 Heol Islwyn, Tonyrefail, Porth, CF39 8NR | Jan 1997 | £29,950 | Semi-detached | Freehold |