| 22 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Mar 2025 | £248,000 | Semi-detached | Freehold |
| 21 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Feb 2025 | £278,000 | Semi-detached | Freehold |
| 20 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Jan 2024 | £230,000 | Semi-detached | Freehold |
| 10 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Sep 2023 | £229,950 | Semi-detached | Freehold |
| 13 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Aug 2022 | £250,000 | Semi-detached | Freehold |
| 18 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Apr 2021 | £160,000 | Semi-detached | Freehold |
| 4 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Oct 2019 | £180,000 | Semi-detached | Freehold |
| 5 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Aug 2019 | £172,500 | Semi-detached | Freehold |
| 6 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Feb 2019 | £225,000 | Semi-detached | Freehold |
| 3 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | May 2018 | £150,000 | Semi-detached | Freehold |
| 23 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Jun 2017 | £180,000 | Semi-detached | Freehold |
| 11 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Sep 2016 | £145,500 | Semi-detached | Freehold |
| 16 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Aug 2015 | £140,000 | Semi-detached | Freehold |
| 19 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Sep 2011 | £185,000 | Semi-detached | Freehold |
| 24 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Feb 2010 | £150,000 | Semi-detached | Freehold |
| 12 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Nov 2009 | £134,000 | Semi-detached | Freehold |
| 8 Alder Avenue, Ystradgynlais, Swansea, SA9 1AQ | Aug 2003 | £114,000 | Semi-detached | Freehold |