| 171, Union Street, Middlesbrough | Freehold | 94 m² | £14,000 (2001) |
| 173, Union Street, Middlesbrough | Freehold | 87 m² | £125,000 (2024) |
| 175 Union Street, Middlesbrough | Freehold | 74 m² | £30,000 (2024) |
| 177 Union Street, Middlesbrough | Freehold | 62 m² | £55,000 (2008) |
| 179, Union Street, Middlesbrough | - | 65 m² | - |
| 181 Union Street, Middlesbrough | Freehold | 67 m² | £85,999 (2025) |
| 183 Union Street, Middlesbrough | Freehold | 70 m² | £57,000 (2007) |
| 185 Union Street, Middlesbrough, Middlesbrough | - | 73 m² | - |
| 187 Union Street, Middlesbrough | Freehold | 66 m² | £39,995 (2017) |
| 189 Union Street, Middlesbrough | Freehold | 83 m² | £76,000 (2025) |
| 191 Union Street, Middlesbrough | Freehold | 76 m² | £85,000 (2026) |
| 193, Union Street, Middlesbrough | - | 82 m² | - |
| 195 Union Street, Middlesbrough | - | 71 m² | - |
| 197 Union Street, Middlesbrough | Freehold | 71 m² | £61,000 (2025) |
| 199 Union Street, Middlesbrough | Freehold | 72 m² | £70,000 (2024) |
| 201, Union Street, Middlesbrough | Freehold | 73 m² | £12,000 (2001) |
| 203, Union Street, Middlesbrough | Freehold | 72 m² | £83,000 (2023) |
| 205 Union Street, Middlesbrough | Freehold | 62 m² | £54,000 (2010) |
| 207 Union Street, Middlesbrough | Freehold | 65 m² | £65,000 (2024) |
| 209 Union Street, Middlesbrough | Freehold | 68 m² | £55,000 (2025) |
| 211, Union Street, Middlesbrough | Freehold | 62 m² | £35,000 (2023) |
| 213 Union Street, Middlesbrough | Freehold | 68 m² | £86,500 (2023) |
| 215 Union Street, Middlesbrough | Freehold | 82 m² | £88,500 (2022) |
| 217 Union Street, Middlesbrough | - | 84 m² | - |
| 219 Union Street, Middlesbrough | Freehold | 52 m² | £55,000 (2007) |
| 219A Union Street, Middlesbrough | - | 42 m² | - |
| 221 Union Street, Middlesbrough | - | 70 m² | - |
| 223 Union Street, Middlesbrough | - | 62 m² | - |
| 225, Union Street, Middlesbrough | Freehold | 69 m² | £97,000 (2021) |
| 227 Union Street, Middlesbrough | - | 54 m² | - |
| 229 Union Street, Middlesbrough | Freehold | 69 m² | £11,000 (2001) |
| 231 Union Street, Middlesbrough | Freehold | 73 m² | £55,000 (2021) |
| 233 Union Street, Middlesbrough | Freehold | 63 m² | £94,388 (2017) |
| 235 Union Street, Middlesbrough | Freehold | 72 m² | £53,500 (2016) |
| 239 Union Street, Middlesbrough | Freehold | 71 m² | £42,000 (2007) |
| 241, Union Street, Middlesbrough | Freehold | 69 m² | £110,000 (2024) |
| 243 Union Street, Middlesbrough | Freehold | 70 m² | £37,000 (2021) |
| 247 Union Street, Middlesbrough | - | 67 m² | - |
| 249 Union Street, Middlesbrough | Freehold | 65 m² | £52,000 (2021) |
| 251 Union Street, Middlesbrough | - | 81 m² | - |
| 253, Union Street, Middlesbrough | Freehold | 71 m² | £50,000 (2025) |
| 255, Union Street, Middlesbrough | Freehold | 74 m² | £35,000 (2004) |
| 257 Union Street, Middlesbrough | Freehold | 71 m² | £28,500 (2010) |
| 261, Union Street, Middlesbrough | Freehold | 71 m² | £45,000 (2025) |
| 263, Union Street, Middlesbrough | - | 72 m² | - |
| 265 Union Street, Middlesbrough | Freehold | 61 m² | £28,500 (2010) |
| Flat A, 237 Union Street, Middlesbrough | Freehold | 49 m² | £100,000 (2021) |