| 18 St. James Road, Harpenden | Freehold | 97 m² | £680,000 (2023) |
| 18A St. James Road, Harpenden | Freehold | 67 m² | £560,000 (2023) |
| 20 St. James Road, Harpenden | Freehold | 136 m² | £572,500 (2020) |
| 20A St James Road, Harpenden, Harpenden | Freehold | 135 m² | £760,000 (2021) |
| 21, St. James Road, Harpenden | Freehold | 139 m² | £244,500 (2003) |
| 22, St. James Road, Harpenden | Freehold | 85 m² | £744,000 (2021) |
| 23 St. James Road, Harpenden | Freehold | 144 m² | £510,000 (2013) |
| 25, St. James Road, Harpenden | Freehold | 120 m² | £250,000 (2003) |
| 26, St. James Road, Harpenden | Freehold | 79 m² | £430,000 (2011) |
| 27, St. James Road, Harpenden | - | 89 m² | - |
| 28, St. James Road, Harpenden | Freehold | 109 m² | £608,500 (2012) |
| 31, St. James Road, Harpenden | Freehold | 150 m² | £820,000 (2018) |
| 33 St. James Road, Harpenden | Freehold | 162 m² | £925,000 (2023) |
| 34, St. James Road, Harpenden | Freehold | 103 m² | £665,000 (2016) |
| 35, St. James Road, Harpenden | Freehold | 140 m² | £395,000 (2010) |
| 37 St. James Road, Harpenden | - | 98 m² | - |
| 40, St. James Road, Harpenden | Freehold | 96 m² | £130,000 (1997) |
| 41 St James Road, Harpenden, Harpenden | Freehold | 88 m² | £800,000 (2023) |
| 45 St. James Road, Harpenden | Freehold | 98 m² | £225,000 (2002) |
| 46, St. James Road, Harpenden | Freehold | 136 m² | £780,000 (2020) |
| 47 St. James Road, Harpenden | Freehold | 152 m² | £870,000 (2024) |
