| 1, Harcourt Street, Darlington | Freehold | 104 m² | £60,000 (2011) |
| 3 Harcourt Street, Darlington | Freehold | 69 m² | £72,500 (2024) |
| 5, Harcourt Street, Darlington | - | 93 m² | - |
| 6, Harcourt Street, Darlington | Freehold | 54 m² | £14,750 (1996) |
| 9 Harcourt Street, Darlington | Freehold | 65 m² | £21,000 (2001) |
| 10, Harcourt Street, Darlington | - | 60 m² | - |
| 11 Harcourt Street, Darlington | Freehold | 83 m² | £79,500 (2007) |
| 12 Harcourt Street, Darlington | - | 59 m² | - |
| 13 Harcourt Street, Darlington | Freehold | 77 m² | £65,000 (2025) |
| 14 Harcourt Street, Darlington | Freehold | 65 m² | £65,000 (2006) |
| 15, Harcourt Street, Darlington | Freehold | 70 m² | £56,000 (2018) |
| 16 Harcourt Street, Darlington | Freehold | 61 m² | £84,500 (2025) |
| 19 Harcourt Street, Darlington | Freehold | 69 m² | £61,500 (2025) |
| 20 Harcourt Street, Darlington | Freehold | 98 m² | £62,500 (2017) |
| 22, Harcourt Street, Darlington | Freehold | 64 m² | £51,000 (2020) |
| 23 Harcourt Street, Darlington, Darlington | Freehold | 57 m² | £60,000 (2021) |
| 24, Harcourt Street, Darlington | - | 76 m² | - |
| 25 Harcourt Street, Darlington | Freehold | 75 m² | £61,000 (2016) |
| 26 Harcourt Street, Darlington | Freehold | 74 m² | £48,500 (2024) |
| 27 Harcourt Street, Darlington | Freehold | 71 m² | £77,000 (2021) |
| 29 Harcourt Street, Darlington | Freehold | 77 m² | £21,000 (1998) |
| 31, Harcourt Street, Darlington | Freehold | 78 m² | £39,999 (2018) |
| 32, Harcourt Street, Darlington | Freehold | 58 m² | £48,000 (2004) |
| 33 Harcourt Street, Darlington | - | 80 m² | - |
| 35, Harcourt Street, Darlington | Freehold | 81 m² | £57,000 (2017) |
| 36, Harcourt Street, Darlington | Freehold | 73 m² | £18,511 (1998) |
| 37 Harcourt Street, Darlington, Darlington | Freehold | 82 m² | £45,000 (2021) |
| 38 Harcourt Street, Darlington | Freehold | 69 m² | £77,000 (2025) |
| 39, Harcourt Street, Darlington | Freehold | 80 m² | £87,500 (2024) |
| 45 Harcourt Street, Darlington | Freehold | 88 m² | £79,000 (2024) |
| 46 Harcourt Street, Darlington | Freehold | 89 m² | £67,000 (2023) |
| Flat 2, 4 Harcourt Street, Darlington, Darlington | Freehold | 28 m² | £67,000 (2006) |