| 2 Clifton Lodge, 2, Underdown Road, Southwick, Brighton | Leasehold | 81 m² | £250,000 (2020) |
| 3 Clifton Lodge, Underdown Road, Southwick, Brighton | Leasehold | 52 m² | £155,000 (2010) |
| 4 Clifton Lodge, 2 Underdown Road, Southwick, Brighton | Leasehold | 88 m² | £428,000 (2023) |
| 4 Underdown Road, Southwick, Brighton | - | 58 m² | - |
| 6 Underdown Road, Southwick | - | 41 m² | - |
| 6A Underdown Road, Southwick, Brighton | - | 33 m² | - |
| 8A, Underdown Road, Southwick, Brighton | - | 37 m² | - |
| 10, Underdown Road, Southwick, Brighton | Freehold | 121 m² | £525,000 (2019) |
| 12, Underdown Road, Southwick, Brighton | - | 55 m² | - |
| 16, Underdown Road, Southwick, Brighton | - | 121 m² | - |
| 18, Underdown Road, Southwick, Brighton | Freehold | 85 m² | £400,000 (2019) |
| 20, Underdown Road, Southwick, Brighton | Freehold | 96 m² | £249,950 (2007) |
| 26, Underdown Road, Southwick, Brighton | Freehold | 114 m² | £420,000 (2018) |
| 32, Underdown Road, Southwick, Brighton | Freehold | 59 m² | £256,500 (2012) |
| 38, Underdown Road, Southwick, Brighton | Freehold | 66 m² | £390,000 (2026) |
| 40 Underdown Road, Southwick, Brighton | Freehold | 72 m² | £385,000 (2025) |
| 42, Underdown Road, Southwick, Brighton | Freehold | 107 m² | £450,000 (2018) |
| 44 Underdown Road, Southwick, Brighton | Freehold | 103 m² | £320,000 (2023) |
| 46 Underdown Road, Southwick, Brighton | Freehold | 82 m² | £400,000 (2025) |
| 48 Underdown Road, Southwick, Brighton | Freehold | 84 m² | £420,000 (2024) |
| 54, Underdown Road, Southwick, Brighton | Freehold | 33 m² | £153,000 (2004) |
| 56 Underdown Road, Southwick, Brighton | Freehold | 83 m² | £190,000 (2013) |
| 58, Underdown Road, Southwick, Brighton | Freehold | 94 m² | £333,000 (2016) |
| 58B, Underdown Road, Southwick, Brighton | Freehold | 101 m² | £475,000 (2017) |
| 64 Underdown Road, Southwick, Brighton | Freehold | 79 m² | £196,000 (2014) |
| 66, Underdown Road, Southwick, Brighton | Freehold | 118 m² | £274,950 (2010) |
| 68, Underdown Road, Southwick, Brighton | Freehold | 105 m² | £447,000 (2020) |
| 70 Underdown Road, Southwick, Brighton | Freehold | 158 m² | £795,000 (2025) |
| 72, Underdown Road, Southwick, Brighton | Freehold | 159 m² | £586,916 (2021) |
| 74, Underdown Road, Southwick, Brighton | Freehold | 183 m² | £575,000 (2015) |
| 80 Underdown Road, Southwick, Brighton | Freehold | 129 m² | £79,995 (1996) |
| 82, Underdown Road, Southwick, Brighton | Freehold | 125 m² | £375,000 (2015) |
| 84 Underdown Road, Southwick, Brighton | Freehold | 130 m² | £366,000 (2015) |
| 86 Underdown Road, Southwick, Brighton | Freehold | 124 m² | £360,000 (2015) |
| 88 Underdown Road, Southwick, Brighton | Freehold | 124 m² | £575,000 (2026) |
| 90, Underdown Road, Southwick, Brighton | Freehold | 91 m² | £233,500 (2008) |
| 92, Underdown Road, Southwick, Brighton | Freehold | 89 m² | £320,000 (2016) |
| 94, Underdown Road, Southwick, Brighton | Freehold | 92 m² | £358,750 (2019) |
| 96, Underdown Road, Southwick, Brighton | Freehold | 125 m² | £525,000 (2025) |
| 98, Underdown Road, Southwick, Brighton | Freehold | 88 m² | £318,950 (2012) |
| 100 Underdown Road, Southwick, Brighton | Freehold | 124 m² | £541,000 (2025) |
| 102, Underdown Road, Southwick, Brighton | Freehold | 131 m² | £443,000 (2019) |
| First Floor Flat, 54 Underdown Road, Southwick, Brighton | Leasehold | 40 m² | £117,000 (2004) |
| Ground Floor Flat, 54 Underdown Road, Southwick | Leasehold | 34 m² | £120,000 (2005) |
