| 1 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 56 m² | £255,000 (2010) |
| 3 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 67 m² | £249,500 (2011) |
| 4 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 64 m² | £348,000 (2016) |
| 5 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 64 m² | £412,000 (2021) |
| 6 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 64 m² | £244,000 (2004) |
| 7 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 63 m² | £365,000 (2019) |
| 8 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 74 m² | £425,000 (2022) |
| 10 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 72 m² | £267,500 (2013) |
| 11 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 75 m² | £155,000 (2000) |
| 12 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 66 m² | £239,950 (2011) |
| 14 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 75 m² | £445,000 (2024) |
| 15 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 74 m² | £240,000 (2011) |
| 16 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 66 m² | £337,000 (2019) |
| 17 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 70 m² | £326,000 (2014) |
| 18 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 71 m² | £165,000 (2000) |
| 19 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 71 m² | £371,000 (2017) |
| 20 Glassmill House, Robertson Road, Berkhamsted, Berkhamsted | Leasehold | 71 m² | £166,500 (2000) |
| 21 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 71 m² | £435,000 (2023) |
| 22 Glassmill House, Robertson Road, Berkhamsted | Leasehold | 70 m² | £450,000 (2025) |
