| 1 Thornley Avenue, Billingham | Freehold | 79 m² | £149,950 (2025) |
| 2, Thornley Avenue, Billingham | Freehold | 91 m² | £118,000 (2012) |
| 3, Thornley Avenue, Billingham | Freehold | 95 m² | £157,000 (2021) |
| 6, Thornley Avenue, Billingham | Freehold | 93 m² | £136,000 (2017) |
| 7, Thornley Avenue, Billingham | Freehold | 81 m² | £145,000 (2024) |
| 8, Thornley Avenue, Billingham | Freehold | 75 m² | £40,500 (1998) |
| 10, Thornley Avenue, Billingham | Freehold | 75 m² | £135,000 (2024) |
| 11, Thornley Avenue, Billingham | Freehold | 77 m² | £105,000 (2010) |
| 12 Thornley Avenue, Billingham | Freehold | 74 m² | £158,000 (2026) |
| 13, Thornley Avenue, Billingham | Freehold | 91 m² | £115,000 (2019) |
| 14, Thornley Avenue, Billingham | - | 85 m² | - |
| 15, Thornley Avenue, Billingham | Freehold | 100 m² | £86,500 (2003) |
| 19 Thornley Avenue, Billingham | Freehold | 69 m² | £124,000 (2024) |
| 23, Thornley Avenue, Billingham | Freehold | 71 m² | £115,000 (2021) |
| 25 Thornley Avenue, Billingham | Freehold | 70 m² | £130,000 (2023) |
| 27 Thornley Avenue, Billingham | Freehold | 69 m² | £51,950 (2002) |
| 31, Thornley Avenue, Billingham | Freehold | 68 m² | £62,000 (2013) |
| 33, Thornley Avenue, Billingham | Freehold | 71 m² | £95,000 (2015) |
| 35 Thornley Avenue, Billingham | Freehold | 69 m² | £112,500 (2024) |
| 39 Thornley Avenue, Billingham | Freehold | 72 m² | £118,000 (2023) |
| 47, Thornley Avenue, Billingham | Freehold | 69 m² | £120,500 (2025) |
| 49, Thornley Avenue, Billingham | Freehold | 71 m² | £32,000 (2000) |
| 51, Thornley Avenue, Billingham | Freehold | 68 m² | £70,000 (2015) |
| 55, Thornley Avenue, Billingham | Freehold | 76 m² | £111,000 (2009) |
