| 5 Garthorne Avenue, Darlington | - | 73 m² | - |
| 9 Garthorne Avenue, Darlington | Freehold | 65 m² | £185,000 (2026) |
| 10, Garthorne Avenue, Darlington | Freehold | 98 m² | £177,500 (2015) |
| 11, Garthorne Avenue, Darlington | - | 57 m² | - |
| 14, Garthorne Avenue, Darlington | Freehold | 77 m² | £153,500 (2017) |
| 16, Garthorne Avenue, Darlington | Freehold | 92 m² | £150,000 (2015) |
| 18 Garthorne Avenue, Darlington | Freehold | 59 m² | £190,000 (2023) |
| 19, Garthorne Avenue, Darlington | Freehold | 66 m² | £180,000 (2019) |
| 20, Garthorne Avenue, Darlington | Freehold | 62 m² | £169,000 (2017) |
| 21, Garthorne Avenue, Darlington | Freehold | 78 m² | £210,000 (2018) |
| 22, Garthorne Avenue, Darlington | Freehold | 59 m² | £143,500 (2013) |
| 24, Garthorne Avenue, Darlington | Freehold | 68 m² | £160,000 (2015) |
| 25, Garthorne Avenue, Darlington | Freehold | 170 m² | £189,000 (2013) |
| 26, Garthorne Avenue, Darlington | Freehold | 54 m² | £170,000 (2019) |
| 28, Garthorne Avenue, Darlington | Freehold | 63 m² | £175,000 (2017) |
| 30, Garthorne Avenue, Darlington | Freehold | 68 m² | £185,000 (2021) |
| 31, Garthorne Avenue, Darlington | - | 70 m² | - |
| 33, Garthorne Avenue, Darlington | Freehold | 76 m² | £180,000 (2017) |
| 34, Garthorne Avenue, Darlington | Freehold | 62 m² | £187,250 (2019) |
| 35, Garthorne Avenue, Darlington | Freehold | 58 m² | £225,000 (2022) |
| 36, Garthorne Avenue, Darlington | - | 60 m² | - |
| 37, Garthorne Avenue, Darlington | Freehold | 67 m² | £150,000 (2014) |
| 38, Garthorne Avenue, Darlington | Freehold | 60 m² | £163,000 (2016) |
| 39 Garthorne Avenue, Darlington | Freehold | 68 m² | £200,000 (2022) |
| 40, Garthorne Avenue, Darlington | Freehold | 93 m² | £74,500 (1998) |
| 44, Garthorne Avenue, Darlington | Freehold | 62 m² | £170,000 (2013) |
| 46 Garthorne Avenue, Darlington | Freehold | 57 m² | £160,000 (2014) |
| 50 Garthorne Avenue, Darlington | - | 53 m² | - |