| 10 The Triangle, Mountain Ash, CF45 4BA | Feb 2026 | £160,000 | Terraced | Freehold |
| 34 The Triangle, Mountain Ash, CF45 4BA | Nov 2025 | £169,995 | Terraced | Freehold |
| 26 The Triangle, Mountain Ash, CF45 4BA | Oct 2025 | £130,000 | Terraced | Freehold |
| 27 The Triangle, Mountain Ash, CF45 4BA | Jul 2025 | £175,000 | Terraced | Freehold |
| 39 The Triangle, Mountain Ash, CF45 4BA | Jun 2024 | £242,000 | Detached | Freehold |
| 24 The Triangle, Mountain Ash, CF45 4BA | Mar 2024 | £144,000 | Terraced | Freehold |
| 29 The Triangle, Mountain Ash, CF45 4BA | Jun 2022 | £149,995 | Terraced | Freehold |
| 21 The Triangle, Mountain Ash, CF45 4BA | Jan 2022 | £85,000 | Terraced | Freehold |
| 25 The Triangle, Mountain Ash, CF45 4BA | Dec 2021 | £150,000 | Terraced | Freehold |
| 30 The Triangle, Mountain Ash, CF45 4BA | Feb 2021 | £123,000 | Terraced | Freehold |
| 13 The Triangle, Mountain Ash, CF45 4BA | Aug 2019 | £71,500 | Terraced | Freehold |
| 31 The Triangle, Mountain Ash, CF45 4BA | Jul 2017 | £110,000 | Terraced | Freehold |
| 19 The Triangle, Mountain Ash, CF45 4BA | Aug 2015 | £91,000 | Terraced | Freehold |
| 2 The Triangle, Mountain Ash, CF45 4BA | Aug 2015 | £70,000 | Terraced | Freehold |
| 35 The Triangle, Mountain Ash, CF45 4BA | Feb 2013 | £92,000 | Terraced | Freehold |
| 6 The Triangle, Mountain Ash, CF45 4BA | Sep 2012 | £75,000 | Terraced | Freehold |
| 11 The Triangle, Mountain Ash, CF45 4BA | Mar 2012 | £69,000 | Terraced | Freehold |
| 16 The Triangle, Mountain Ash, CF45 4BA | Apr 2010 | £108,500 | Terraced | Freehold |
| 23 The Triangle, Mountain Ash, CF45 4BA | Sep 2007 | £82,000 | Terraced | Freehold |
| 12 The Triangle, Mountain Ash, CF45 4BA | Mar 2006 | £73,500 | Terraced | Freehold |
| 22 The Triangle, Mountain Ash, CF45 4BA | Jan 2006 | £99,000 | Terraced | Freehold |
| 4 The Triangle, Mountain Ash, CF45 4BA | Mar 2005 | £72,500 | Semi-detached | Freehold |
| 14 The Triangle, Mountain Ash, CF45 4BA | Feb 2004 | £63,000 | Terraced | Freehold |
| 36 The Triangle, Mountain Ash, CF45 4BA | Nov 2002 | £40,000 | Terraced | Freehold |
| 9 The Triangle, Mountain Ash, CF45 4BA | Aug 2001 | £28,000 | Terraced | Freehold |
| 15 The Triangle, Mountain Ash, CF45 4BA | Dec 2000 | £30,000 | Terraced | Freehold |
| 17 The Triangle, Mountain Ash, CF45 4BA | Jul 1999 | £33,000 | Terraced | Freehold |
| 7 The Triangle, Mountain Ash, CF45 4BA | Sep 1997 | £30,000 | Terraced | Freehold |
| 28 The Triangle, Mountain Ash, CF45 4BA | Mar 1997 | £33,000 | Terraced | Freehold |
| 20 The Triangle, Mountain Ash, CF45 4BA | Jun 1996 | £38,500 | Terraced | Freehold |