| 12 Robert Ellis Court, St Martins Road, Knebworth, Knebworth | Leasehold | 68 m² | £318,000 (2022) |
| 20 Robert Ellis Court, St Martins Road, Knebworth, Knebworth | Leasehold | 79 m² | £375,000 (2021) |
| Apartment 1 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 63 m² | £256,000 (2015) |
| Apartment 2 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 73 m² | £325,000 (2017) |
| Apartment 3 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 63 m² | £200,000 (2013) |
| Apartment 4, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 73 m² | £395,000 (2025) |
| Apartment 5 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 70 m² | £217,000 (2012) |
| Apartment 6 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 67 m² | £345,000 (2019) |
| Apartment 7 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 82 m² | £235,000 (2011) |
| Apartment 8 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 102 m² | £227,000 (2013) |
| Apartment 9 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 93 m² | £300,000 (2010) |
| Apartment 10, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 76 m² | £415,000 (2026) |
| Apartment 11, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 87 m² | £300,000 (2009) |
| Apartment 14 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 83 m² | £235,000 (2012) |
| Apartment 15, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 61 m² | £365,000 (2023) |
| Apartment 16 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 71 m² | £275,000 (2017) |
| Apartment 17, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 61 m² | £285,000 (2022) |
| Apartment 18, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 76 m² | £300,000 (2025) |
| Apartment 19 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 67 m² | £240,000 (2014) |
| Apartment 21 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 62 m² | £265,000 (2015) |
| Apartment 22, Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 75 m² | £290,000 (2017) |
| Apartment 23 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 67 m² | £325,000 (2017) |
| Apartment 24 Robert Ellis Court, St. Martins Road, Knebworth | Leasehold | 83 m² | £420,000 (2023) |
