| 1 Trenethick Avenue, Helston, Helston | Freehold | 82 m² | £355,000 (2022) |
| 2 Trenethick Avenue, Helston | Freehold | 81 m² | £78,000 (1997) |
| 3, Trenethick Avenue, Helston | Freehold | 83 m² | £250,000 (2021) |
| 4 Trenethick Avenue, Helston | Freehold | 103 m² | £375,000 (2023) |
| 6 Trenethick Avenue, Helston | Freehold | 78 m² | £185,000 (2009) |
| 7, Trenethick Avenue, Helston | Freehold | 79 m² | £217,400 (2018) |
| 8 Trenethick Avenue, Helston | - | 81 m² | - |
| 10, Trenethick Avenue, Helston | Freehold | 80 m² | £275,000 (2019) |
| 11 Trenethick Avenue, Helston | Freehold | 98 m² | £225,000 (2008) |
| 12, Trenethick Avenue, Helston | Freehold | 82 m² | £275,000 (2020) |
| 15, Trenethick Avenue, Helston | Freehold | 90 m² | £222,000 (2017) |
| 17, Trenethick Avenue, Helston | Freehold | 65 m² | £209,950 (2014) |
| 19, Trenethick Avenue, Helston | - | 77 m² | - |
| 20, Trenethick Avenue, Helston | Freehold | 63 m² | £280,000 (2023) |
| 21 Trenethick Avenue, Helston | Freehold | 112 m² | £66,000 (1999) |
| 22 Trenethick Avenue, Helston | Freehold | 121 m² | £405,000 (2023) |
| 24, Trenethick Avenue, Helston | Freehold | 77 m² | £235,000 (2015) |
| 25, Trenethick Avenue, Helston | Freehold | 92 m² | £223,000 (2019) |
| 27, Trenethick Avenue, Helston | Freehold | 148 m² | £217,500 (2013) |
| 28 Trenethick Avenue, Helston, Helston | Freehold | 75 m² | £185,000 (2021) |
| 30 Trenethick Avenue, Helston | Freehold | 75 m² | £162,000 (2014) |
| 31, Trenethick Avenue, Helston | - | 82 m² | - |
| 33 Trenethick Avenue, Helston | Freehold | 80 m² | £263,000 (2025) |
| 34, Trenethick Avenue, Helston | Freehold | 74 m² | £175,000 (2020) |
| 35, Trenethick Avenue, Helston | Freehold | 73 m² | £145,000 (2010) |
| 36, Trenethick Avenue, Helston | - | 75 m² | - |
| 40 Trenethick Avenue, Helston | Freehold | 98 m² | £275,000 (2021) |
| 41 Trenethick Avenue, Helston | Freehold | 88 m² | £149,000 (2013) |
| 43, Trenethick Avenue, Helston | Freehold | 79 m² | £167,900 (2017) |
| 47 Trenethick Avenue, Helston | Freehold | 76 m² | £260,000 (2021) |