| 2 Longfield Road, Harpenden, Harpenden | - | 80 m² | - |
| 3, Longfield Road, Harpenden | - | 76 m² | - |
| 4 Longfield Road, Harpenden, Harpenden | - | 80 m² | - |
| 6, Longfield Road, Harpenden | Freehold | 124 m² | £250,000 (2011) |
| 7 Longfield Road, Harpenden | - | 77 m² | - |
| 8 Longfield Road, Harpenden | Freehold | 75 m² | £425,000 (2025) |
| 9 Longfield Road, Harpenden, Harpenden | - | 77 m² | - |
| 10 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 11, Longfield Road, Harpenden | Freehold | 72 m² | £154,000 (2002) |
| 12 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 13, Longfield Road, Harpenden | Freehold | 77 m² | £140,000 (2012) |
| 14 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 16 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 17 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 20, Longfield Road, Harpenden | - | 78 m² | - |
| 23, Longfield Road, Harpenden | Freehold | 76 m² | £402,500 (2018) |
| 24 Longfield Road, Harpenden | Freehold | 77 m² | £470,000 (2025) |
| 25 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 26 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 27 Longfield Road, Harpenden, Harpenden | - | 80 m² | - |
| 28 Longfield Road, Harpenden, Harpenden | - | 75 m² | - |
| 30 Longfield Road, Harpenden, Harpenden | Freehold | 82 m² | £455,000 (2023) |
| 31 Longfield Road, Harpenden | - | 76 m² | - |
| 32 Longfield Road, Harpenden | - | 66 m² | - |
| 33 Longfield Road, Harpenden, Harpenden | - | 85 m² | - |
| 34 Longfield Road, Harpenden | - | 77 m² | - |
| 36 Longfield Road, Harpenden | - | 66 m² | - |
| 37 Longfield Road, Harpenden | Freehold | 77 m² | £398,250 (2023) |
| 39, Longfield Road, Harpenden | Freehold | 75 m² | £420,000 (2018) |
| 43 Longfield Road, Harpenden | Freehold | 88 m² | £275,000 (2012) |
