| 99 Portman Street, Middlesbrough | Freehold | 70 m² | £55,000 (2024) |
| 100 Portman Street, Middlesbrough | Freehold | 78 m² | £59,000 (2006) |
| 101 Portman Street, Middlesbrough | Freehold | 63 m² | £50,000 (2023) |
| 102 Portman Street, Middlesbrough | - | 86 m² | - |
| 103 Portman Street, Middlesbrough | Freehold | 68 m² | £27,950 (2003) |
| 104 Portman Street, Middlesbrough | Freehold | 68 m² | £60,000 (2017) |
| 105 Portman Street, Middlesbrough | Freehold | 67 m² | £55,000 (2025) |
| 106, Portman Street, Middlesbrough | - | 84 m² | - |
| 107, Portman Street, Middlesbrough | Freehold | 66 m² | £17,000 (1999) |
| 108 Portman Street, Middlesbrough | Freehold | 71 m² | £77,330 (2022) |
| 109 Portman Street, Middlesbrough | Freehold | 64 m² | £3,000 (1996) |
| 110 Portman Street, Middlesbrough | Freehold | 79 m² | £50,000 (2004) |
| 111 Portman Street, Middlesbrough | - | 57 m² | - |
| 112 Portman Street, Middlesbrough | Freehold | 79 m² | £65,250 (2008) |
| 113 Portman Street, Middlesbrough | Freehold | 86 m² | £30,000 (2023) |
| 114 Portman Street, Middlesbrough | Freehold | 73 m² | £60,000 (2021) |
| 115 Portman Street, Middlesbrough | Freehold | 65 m² | £72,000 (2022) |
| 116 Portman Street, Middlesbrough | Freehold | 84 m² | £79,000 (2025) |
| 117, Portman Street, Middlesbrough | Freehold | 72 m² | £34,500 (2014) |
| 118 Portman Street, Middlesbrough | Freehold | 86 m² | £43,000 (2004) |
| 119 Portman Street, Middlesbrough | Freehold | 66 m² | £30,000 (2020) |
| 121, Portman Street, Middlesbrough | - | 68 m² | - |
| 122, Portman Street, Middlesbrough | Freehold | 76 m² | £35,000 (2013) |
| 123 Portman Street, Middlesbrough | Freehold | 68 m² | £34,000 (2016) |
| 124 Portman Street, Middlesbrough | Freehold | 70 m² | £62,500 (2024) |
| 125, Portman Street, Middlesbrough | Freehold | 66 m² | £58,500 (2012) |
| 126, Portman Street, Middlesbrough | Freehold | 73 m² | £19,000 (1995) |
| 127 Portman Street, Middlesbrough | Freehold | 67 m² | £39,999 (2025) |
| 128 Portman Street, Middlesbrough | Freehold | 75 m² | £60,000 (2024) |
| 129 Portman Street, Middlesbrough | Freehold | 65 m² | £87,000 (2018) |
| 130, Portman Street, Middlesbrough | Freehold | 96 m² | £39,995 (2020) |
| 131, Portman Street, Middlesbrough | Freehold | 57 m² | £21,000 (1998) |
| 132 Portman Street, Middlesbrough | Freehold | 76 m² | £66,000 (2022) |
| 133 Portman Street, Middlesbrough | Freehold | 62 m² | £37,250 (2007) |
| 134 Portman Street, Middlesbrough | - | 87 m² | - |
| 135, Portman Street, Middlesbrough | Freehold | 65 m² | £68,000 (2025) |
| 136 Portman Street, Middlesbrough | Freehold | 79 m² | £79,000 (2025) |
| 138, Portman Street, Middlesbrough | Freehold | 73 m² | £39,000 (2020) |
| 139 Portman Street, Middlesbrough | Freehold | 67 m² | £50,500 (2017) |
| 142, Portman Street, Middlesbrough | Freehold | 76 m² | £59,950 (2004) |
| 144 Portman Street, Middlesbrough, Middlesbrough | Freehold | 74 m² | £78,000 (2026) |
| 146, Portman Street, Middlesbrough | - | 74 m² | - |
| 148 Portman Street, Middlesbrough | - | 98 m² | - |
| 150, Portman Street, Middlesbrough | - | 113 m² | - |