| 32 Napier Street, Mountain Ash, CF45 3HW | Nov 2025 | £60,000 | Terraced | Freehold |
| 31 Napier Street, Mountain Ash, CF45 3HW | Sep 2025 | £112,000 | Terraced | Freehold |
| 55 Napier Street, Mountain Ash, CF45 3HW | Dec 2024 | £85,000 | Terraced | Freehold |
| 28 Napier Street, Mountain Ash, CF45 3HW | Jul 2024 | £63,000 | Terraced | Freehold |
| 45 Napier Street, Mountain Ash, CF45 3HW | Mar 2024 | £119,000 | Terraced | Freehold |
| 24 Napier Street, Mountain Ash, CF45 3HW | Feb 2024 | £89,000 | Terraced | Freehold |
| 30 Napier Street, Mountain Ash, CF45 3HW | Oct 2023 | £78,500 | Terraced | Freehold |
| 54 Napier Street, Mountain Ash, CF45 3HW | Oct 2023 | £88,500 | Terraced | Freehold |
| 57 Napier Street, Mountain Ash, CF45 3HW | Aug 2023 | £100,000 | Terraced | Freehold |
| 37 Napier Street, Mountain Ash, CF45 3HW | Oct 2022 | £74,500 | Other property | Freehold |
| 35 Napier Street, Mountain Ash, CF45 3HW | Jul 2022 | £87,500 | Terraced | Freehold |
| 36 Napier Street, Mountain Ash, CF45 3HW | Mar 2021 | £72,500 | Terraced | Freehold |
| 11 Napier Street, Mountain Ash, CF45 3HW | Nov 2019 | £40,600 | Terraced | Freehold |
| 4 Napier Street, Mountain Ash, CF45 3HW | Feb 2018 | £58,000 | Terraced | Freehold |
| 2 Napier Street, Mountain Ash, CF45 3HW | Oct 2017 | £70,000 | Terraced | Freehold |
| 33 Napier Street, Mountain Ash, CF45 3HW | Sep 2017 | £37,000 | Terraced | Freehold |
| 23 Napier Street, Mountain Ash, CF45 3HW | Jul 2017 | £55,000 | Terraced | Freehold |
| 8 Napier Street, Mountain Ash, CF45 3HW | Aug 2016 | £59,000 | Terraced | Freehold |
| 14 Napier Street, Mountain Ash, CF45 3HW | Apr 2016 | £59,000 | Terraced | Freehold |
| 39 Napier Street, Mountain Ash, CF45 3HW | Jul 2015 | £60,000 | Detached | Freehold |
| 21 Napier Street, Mountain Ash, CF45 3HW | Feb 2008 | £60,000 | Terraced | Freehold |
| 16 Napier Street, Mountain Ash, CF45 3HW | Oct 2006 | £69,950 | Terraced | Freehold |
| 38 Napier Street, Mountain Ash, CF45 3HW | Jan 2006 | £67,000 | Terraced | Freehold |
| 12 Napier Street, Mountain Ash, CF45 3HW | Mar 2005 | £53,500 | Terraced | Freehold |
| 41 Napier Street, Mountain Ash, CF45 3HW | Nov 2002 | £20,500 | Semi-detached | Freehold |
| 27 Napier Street, Mountain Ash, CF45 3HW | Feb 2002 | £15,000 | Terraced | Freehold |
| 42 Napier Street, Mountain Ash, CF45 3HW | Apr 2001 | £15,500 | Terraced | Freehold |
| 25 Napier Street, Mountain Ash, CF45 3HW | Mar 2000 | £24,000 | Terraced | Freehold |
| 43 Napier Street, Mountain Ash, CF45 3HW | Mar 2000 | £33,000 | Terraced | Freehold |
| 9 Napier Street, Mountain Ash, CF45 3HW | Jan 2000 | £29,000 | Terraced | Freehold |
| 56 Napier Street, Mountain Ash, CF45 3HW | May 1999 | £25,000 | Terraced | Freehold |
| 10 Napier Street, Mountain Ash, CF45 3HW | Dec 1998 | £7,000 | Terraced | Freehold |
| 47 Napier Street, Mountain Ash, CF45 3HW | Jun 1998 | £10,000 | Terraced | Freehold |
| 26 Napier Street, Mountain Ash, CF45 3HW | Apr 1998 | £24,000 | Terraced | Freehold |
| 46 Napier Street, Mountain Ash, CF45 3HW | Dec 1997 | £25,500 | Terraced | Freehold |
| 18 Napier Street, Mountain Ash, CF45 3HW | Jun 1997 | £27,500 | Terraced | Freehold |
| 50 Napier Street, Mountain Ash, CF45 3HW | Feb 1997 | £11,000 | Terraced | Freehold |
| 51 Napier Street, Mountain Ash, CF45 3HW | Aug 1996 | £10,000 | Terraced | Leasehold |