| Flat 1 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 104 m² | £375,000 (2019) |
| Flat 2 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 63 m² | £210,000 (2025) |
| Flat 3 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 63 m² | £190,000 (2019) |
| Flat 4 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 84 m² | £250,000 (2021) |
| Flat 5 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 84 m² | £240,000 (2021) |
| Flat 6 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £197,500 (2019) |
| Flat 7 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 60 m² | £165,000 (2019) |
| Flat 8 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £220,000 (2024) |
| Flat 9 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 100 m² | £340,000 (2019) |
| Flat 10 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 59 m² | £215,000 (2024) |
| Flat 11 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 59 m² | £179,000 (2020) |
| Flat 12 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £257,500 (2021) |
| Flat 13 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £185,000 (2025) |
| Flat 14 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £200,000 (2024) |
| Flat 15 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 67 m² | £192,500 (2021) |
| Flat 16 Sewell House, Waterside Marina, Brightlingsea, Colchester | Leasehold | 80 m² | £201,250 (2021) |
