| 36 Marlborough Road, Watford | - | 133 m² | - |
| 38, Marlborough Road, Watford | Freehold | 98 m² | £900,000 (2025) |
| 40, Marlborough Road, Watford | Freehold | 98 m² | £900,000 (2025) |
| 42 Marlborough Road, Watford, Watford | Freehold | 228 m² | £380,000 (2007) |
| 44 Marlborough Road, Watford, Watford | Freehold | 210 m² | £13,950,000 (2017) |
| 46, Marlborough Road, Watford | Freehold | 178 m² | £550,000 (2019) |
| 48, Marlborough Road, Watford | - | 202 m² | - |
| 50 Marlborough Road, Watford | Freehold | 54 m² | £48,000 (2021) |
| 50A Marlborough Road, Watford, Watford | Leasehold | 109 m² | £355,000 (2022) |
| 54 Marlborough Road, Watford, Watford | Freehold | 204 m² | £330,000 (2013) |
| 58 Marlborough Road, Watford | Freehold | 142 m² | £650,000 (2024) |
| 60, Marlborough Road, Watford | - | 153 m² | - |
| 62, Marlborough Road, Watford | - | 164 m² | - |
| 64, Marlborough Road, Watford | Leasehold | 124 m² | £195,000 (2012) |
| 64A, Marlborough Road, Watford | Leasehold | 61 m² | £170,000 (2017) |
| 66 Marlborough Road, Watford | Freehold | 168 m² | £625,000 (2023) |
| 68 Marlborough Road, Watford, Watford | Freehold | 204 m² | £180,000 (2001) |
| 76A Marlborough Road, Watford, Watford | - | 21 m² | - |
| 76B Marlborough Road, Watford, Watford | Leasehold | 118 m² | £157,500 (2010) |
| 78A, Marlborough Road, Watford | - | 58 m² | - |
| Flat 1, 52, Marlborough Road, Watford | Leasehold | 31 m² | £190,000 (2022) |
| Flat 1, 70, Marlborough Road, Watford | Leasehold | 65 m² | £259,000 (2020) |
| Flat 2, 70, Marlborough Road, Watford | Leasehold | 66 m² | £280,000 (2018) |
| Flat 3, 52 Marlborough Road, Watford | - | 16 m² | - |
| Flat 3, 72, Marlborough Road, Watford | - | 46 m² | - |
| Flat 4, 52 Marlborough Road, Watford | - | 30 m² | - |
| Flat 4, 72 Marlborough Road, Watford | - | 33 m² | - |
| Flat 5, 52, Marlborough Road, Watford | Leasehold | 25 m² | £116,500 (2007) |
| Ground Floor, 76 Marlborough Road, Watford | - | 59 m² | - |
| Room 1, 38 Marlborough Road, Watford | - | 15 m² | - |
| Room 2, 38 Marlborough Road, Watford | - | 13 m² | - |
| Room 3, 38 Marlborough Road, Watford | - | 12 m² | - |
| Room 4, 38 Marlborough Road, Watford | - | 19 m² | - |
| Room 5, 38 Marlborough Road, Watford | - | 14 m² | - |
| Room 6, 38 Marlborough Road, Watford | - | 19 m² | - |
| Unit 1, 40, Marlborough Road, Watford | - | 15 m² | - |
| Unit 2, 40, Marlborough Road, Watford | - | 13 m² | - |
| Unit 3, 40, Marlborough Road, Watford | - | 13 m² | - |
| Unit 4, 40, Marlborough Road, Watford | - | 19 m² | - |
| Unit 5, 40, Marlborough Road, Watford | - | 16 m² | - |
| Unit 6, 40, Marlborough Road, Watford | - | 19 m² | - |
