| 385 North Western Avenue, Watford | Freehold | 177 m² | £696,505 (2022) |
| 387 North Western Avenue, Watford | Freehold | 76 m² | £122,000 (1999) |
| 389 North Western Avenue, Watford | Freehold | 88 m² | £470,000 (2022) |
| 399 North Western Avenue, Watford, Watford | Freehold | 94 m² | £519,940 (2022) |
| 401 North Western Avenue, Watford | Freehold | 81 m² | £514,000 (2024) |
| 409, North Western Avenue, Watford | - | 127 m² | - |
| 411, North Western Avenue, Watford | Freehold | 83 m² | £370,000 (2019) |
| 413 North Western Avenue, Watford | Freehold | 41 m² | £300,000 (2014) |
| 413A, North Western Avenue, Watford | - | 42 m² | - |
| 419, North Western Avenue, Watford | Freehold | 82 m² | £398,000 (2016) |
| 421 North Western Avenue, Watford | - | 53 m² | - |
| 423, North Western Avenue, Watford | Leasehold | 53 m² | £46,500 (1997) |
| 427 North Western Avenue, Watford | Leasehold | 59 m² | £270,000 (2021) |
| 431 North Western Avenue, Watford | Leasehold | 57 m² | £150,000 (2010) |
| 433, North Western Avenue, Watford | Leasehold | 61 m² | £294,000 (2018) |
| 435 North Western Avenue, Watford | Leasehold | 59 m² | £315,000 (2023) |
| 437 North Western Avenue, Watford | Leasehold | 58 m² | £290,000 (2023) |
| 439 North Western Avenue, Watford | Leasehold | 60 m² | £65,950 (1997) |
| 441 North Western Avenue, Watford, Watford | Leasehold | 59 m² | £278,750 (2021) |
| 447, North Western Avenue, Watford | Freehold | 94 m² | £200,000 (2004) |
| 449, North Western Avenue, Watford | Freehold | 86 m² | £467,000 (2021) |
| 453, North Western Avenue, Watford | Freehold | 83 m² | £430,000 (2019) |
| 459, North Western Avenue, Watford | - | 87 m² | - |
| 461 North Western Avenue, Watford, Watford | Freehold | 104 m² | £505,000 (2021) |
| 465 North Western Avenue, Watford | Freehold | 96 m² | £560,000 (2026) |
| 469 North Western Avenue, Watford | Freehold | 89 m² | £478,000 (2026) |
| 471, North Western Avenue, Watford | Freehold | 85 m² | £240,000 (2010) |
| 475, North Western Avenue, Watford | Freehold | 74 m² | £385,000 (2015) |
| 477, North Western Avenue, Watford | Freehold | 91 m² | £437,000 (2017) |
| 479, North Western Avenue, Watford | Freehold | 89 m² | £450,000 (2016) |
| 485, North Western Avenue, Watford | - | 84 m² | - |
| 487 North Western Avenue, Watford | Freehold | 98 m² | £205,000 (2005) |
| 491 North Western Avenue, Watford | - | 85 m² | - |
