| 60 Portland Place, Northampton | - | 45 m² | - |
| 61 Portland Place, Northampton | - | 51 m² | - |
| 62, Portland Place, Northampton | - | 49 m² | - |
| 63 Portland Place, Northampton | - | 50 m² | - |
| 64 Portland Place, Northampton | - | 47 m² | - |
| 65 Portland Place, Northampton | - | 50 m² | - |
| 66 Portland Place, Northampton | - | 52 m² | - |
| 67, Portland Place, Northampton | - | 50 m² | - |
| 68 Portland Place, Northampton | - | 43 m² | - |
| 69, Portland Place, Northampton | - | 46 m² | - |
| 70 Portland Place, Northampton | - | 56 m² | - |
| 71, Portland Place, Northampton | Leasehold | 49 m² | £36,995 (2001) |
| 72, Portland Place, Northampton | Leasehold | 51 m² | £102,000 (2016) |
| 73, Portland Place, Northampton | - | 56 m² | - |
| 74, Portland Place, Northampton | - | 101 m² | - |
| 75 Portland Place, Northampton | - | 43 m² | - |
| 76 Portland Place, Northampton | - | 50 m² | - |
| 78, Portland Place, Northampton | - | 47 m² | - |
| 79 Portland Place, Northampton | - | 43 m² | - |
| 80, Portland Place, Northampton | Leasehold | 48 m² | £90,000 (2016) |
| 81, Portland Place, Northampton | Leasehold | 48 m² | £105,000 (2020) |
| 82 Portland Place, Northampton | - | 43 m² | - |
| 83 Portland Place, Northampton | - | 49 m² | - |
| 84, Portland Place, Northampton | - | 46 m² | - |
| 85 Portland Place, Northampton | - | 49 m² | - |
| 86, Portland Place, Northampton | - | 46 m² | - |
| 87 Portland Place, Northampton | - | 49 m² | - |
| 88, Portland Place, Northampton | - | 46 m² | - |
| 89, Portland Place, Northampton | - | 56 m² | - |
| 90 Portland Place, Northampton | - | 56 m² | - |
| 91, Portland Place, Northampton | - | 48 m² | - |
| 92 Portland Place, Northampton | - | 35 m² | - |
| 93, Portland Place, Northampton | - | 49 m² | - |
| 94, Portland Place, Northampton | - | 51 m² | - |
| 95, Portland Place, Northampton | - | 49 m² | - |
| 96 Portland Place, Northampton | - | 53 m² | - |
| 97 Portland Place, Northampton | - | 49 m² | - |
| 98 Portland Place, Northampton | - | 49 m² | - |
| 100, Portland Place, Northampton | - | 45 m² | - |
| 102, Portland Place, Northampton | - | 52 m² | - |
| 103 Portland Place, Northampton | Leasehold | 51 m² | £49,000 (2021) |
| 104 Portland Place, Northampton | - | 45 m² | - |
| 105 Portland Place, Northampton | - | 47 m² | - |
| 106, Portland Place, Northampton | - | 49 m² | - |
| 108 Portland Place, Northampton | - | 56 m² | - |
| 109 Portland Place, Northampton | - | 44 m² | - |
| 110 Portland Place, Northampton | - | 56 m² | - |
| 111, Portland Place, Northampton | - | 53 m² | - |
| 112, Portland Place, Northampton | - | 48 m² | - |
| 113 Portland Place, Northampton | - | 49 m² | - |
| 114 Portland Place, Northampton | - | 48 m² | - |
| 115, Portland Place, Northampton | - | 46 m² | - |
| 116 Portland Place, Northampton | - | 50 m² | - |
| 117 Portland Place, Northampton | - | 56 m² | - |