| Flat 1, Castle Court, River Park, Marlborough | Leasehold | 55 m² | £149,000 (2023) |
| Flat 2 Castle Court, River Park, Marlborough | Leasehold | 40 m² | £200,000 (2012) |
| Flat 4 Castle Court, River Park, Marlborough | Leasehold | 58 m² | £235,000 (2022) |
| Flat 5 Castle Court, River Park, Marlborough | Leasehold | 47 m² | £155,000 (2024) |
| Flat 6, Castle Court, River Park, Marlborough | Leasehold | 45 m² | £160,000 (2025) |
| Flat 7, Castle Court, River Park, Marlborough | Leasehold | 63 m² | £144,000 (2002) |
| Flat 8, Castle Court, River Park, Marlborough | Leasehold | 58 m² | £240,000 (2024) |
| Flat 10 Castle Court, River Park, Marlborough | Leasehold | 64 m² | £200,000 (2020) |
| Flat 11 Castle Court, River Park, Marlborough | Leasehold | 53 m² | £190,000 (2023) |
| Flat 12 Castle Court, River Park, Marlborough | Leasehold | 52 m² | £167,000 (2016) |
| Flat 14, Castle Court, River Park, Marlborough | Leasehold | 50 m² | £125,000 (2025) |
| Flat 15 Castle Court, River Park, Marlborough | Leasehold | 44 m² | £155,000 (2018) |
| Flat 17 Castle Court, River Park, Marlborough | Leasehold | 46 m² | £139,000 (2025) |
| Flat 20, Castle Court, River Park, Marlborough | Leasehold | 61 m² | £205,000 (2019) |
| Flat 21 Castle Court, River Park, Marlborough | Leasehold | 62 m² | £185,000 (2013) |
| Flat 22, Castle Court, River Park, Marlborough | Leasehold | 58 m² | £222,500 (2022) |
| Flat 23 Castle Court, River Park, Marlborough | Leasehold | 79 m² | £190,000 (2020) |
| Flat 24 Castle Court, River Park, Marlborough | Leasehold | 59 m² | £205,000 (2022) |
| Flat 26, Castle Court, Marlborough | Leasehold | 47 m² | £175,000 (2016) |
| Flat 27, Castle Court, River Park, Marlborough | Leasehold | 45 m² | £100,000 (2024) |
| Flat 28, Castle Court, River Park, Marlborough | Leasehold | 43 m² | £125,000 (2025) |
| Flat 29 Castle Court, River Park, Marlborough | Leasehold | 43 m² | £125,000 (2024) |
| Flat 30 Castle Court, River Park, Marlborough | Leasehold | 44 m² | £185,000 (2016) |
| Flat 31 Castle Court, River Park, Marlborough | Leasehold | 82 m² | £215,000 (2022) |
| Flat 32, Castle Court, River Park, Marlborough | Leasehold | 82 m² | £210,000 (2022) |
| Flat 33, Castle Court, River Park, Marlborough | Leasehold | 46 m² | £120,000 (2025) |
| Flat 34 Castle Court, River Park, Marlborough | Leasehold | 63 m² | £195,000 (2014) |
| Flat 35, Castle Court, River Park, Marlborough | Leasehold | 63 m² | £208,000 (2013) |
| Flat 36, Castle Court, River Park, Marlborough | Leasehold | 57 m² | £190,000 (2016) |
| Flat 37 Castle Court, River Park, Marlborough | Leasehold | 57 m² | £175,000 (2011) |
| Flat 38, Castle Court, River Park, Marlborough | Leasehold | 62 m² | £220,000 (2022) |
| Flat 39 Castle Court, River Park, Marlborough | Leasehold | 45 m² | £172,000 (2016) |
| Flat 40, Castle Court, River Park, Marlborough | Leasehold | 57 m² | £190,000 (2024) |
| Flat 41, Castle Court, River Park, Marlborough | Leasehold | 49 m² | £135,000 (2025) |
| Flat 42 Castle Court, River Park, Marlborough | Leasehold | 49 m² | £125,000 (2021) |
| Flat 43 Castle Court, River Park, Marlborough | Leasehold | 82 m² | £250,000 (2023) |
| Flat 44, Castle Court, River Park, Marlborough | Leasehold | 46 m² | £160,000 (2015) |
| Flat 45, Castle Court, River Park, Marlborough | Leasehold | 51 m² | £150,000 (2024) |
| Flat 46 Castle Court, River Park, Marlborough | - | 43 m² | - |
| Flat 47, Castle Court, River Park, Marlborough | Leasehold | 67 m² | £130,000 (2026) |
| Flat 48, Castle Court, River Park, Marlborough | Leasehold | 93 m² | £167,000 (2013) |
| Wardens Flat 9, Castle Court, River Park, Marlborough | Leasehold | 60 m² | £170,000 (2026) |
