| 1, Portland Terrace, Gainsborough | Freehold | 75 m² | £35,000 (2022) |
| 1A, Portland Terrace, Gainsborough | - | 61 m² | - |
| 1B Portland Terrace, Gainsborough | Freehold | 61 m² | £83,750 (2008) |
| 2 Portland Terrace, Gainsborough | Freehold | 62 m² | £28,000 (2011) |
| 3, Portland Terrace, Gainsborough | Freehold | 74 m² | £60,000 (2024) |
| 4 Portland Terrace, Gainsborough | Freehold | 60 m² | £35,250 (2015) |
| 5 Portland Terrace, Gainsborough | Freehold | 73 m² | £46,000 (2022) |
| 6 Portland Terrace, Gainsborough | Freehold | 65 m² | £39,995 (2019) |
| 7, Portland Terrace, Gainsborough | - | 73 m² | - |
| 8, Portland Terrace, Gainsborough | Freehold | 70 m² | £35,000 (2003) |
| 9 Portland Terrace, Gainsborough, Gainsborough | Freehold | 63 m² | £32,000 (2013) |
| 10, Portland Terrace, Gainsborough | Freehold | 58 m² | £21,000 (1997) |
| 11 Portland Terrace, Gainsborough | Freehold | 63 m² | £36,000 (2024) |
| 12, Portland Terrace, Gainsborough | Freehold | 58 m² | £36,500 (2005) |
| 13, Portland Terrace, Gainsborough | Freehold | 58 m² | £58,500 (2022) |
| 14 Portland Terrace, Gainsborough | Freehold | 71 m² | £45,000 (2018) |
| 16, Portland Terrace, Gainsborough | Freehold | 48 m² | £75,000 (2008) |
| 17, Portland Terrace, Gainsborough | Freehold | 63 m² | £50,000 (2024) |
| 18 Portland Terrace, Gainsborough | Freehold | 64 m² | £35,000 (2020) |
| 19, Portland Terrace, Gainsborough | Freehold | 73 m² | £56,150 (2005) |
| 20, Portland Terrace, Gainsborough | Freehold | 74 m² | £60,000 (2007) |
| 21 Portland Terrace, Gainsborough | Freehold | 57 m² | £39,500 (2019) |
| 22 Portland Terrace, Gainsborough | Freehold | 58 m² | £32,000 (2016) |
| 23 Portland Terrace, Gainsborough | Freehold | 60 m² | £35,000 (2026) |
| 24, Portland Terrace, Gainsborough | Freehold | 68 m² | £50,000 (2021) |
| 26 Portland Terrace, Gainsborough | Freehold | 73 m² | £50,000 (2021) |
| 28, Portland Terrace, Gainsborough | Freehold | 73 m² | £41,550 (2017) |
| 30 Portland Terrace, Gainsborough | Freehold | 66 m² | £35,000 (2020) |
| 32, Portland Terrace, Gainsborough | Freehold | 70 m² | £45,000 (2018) |