| 34 North Western Avenue, Watford, WD25 0AE | Dec 2025 | £500,000 | Semi-detached | Freehold |
| 16 North Western Avenue, Watford, WD25 0AE | Aug 2025 | £485,000 | Semi-detached | Freehold |
| 44 North Western Avenue, Watford, WD25 0AE | Oct 2024 | £535,000 | Semi-detached | Freehold |
| 20 North Western Avenue, Watford, WD25 0AE | Aug 2023 | £278,000 | Flat / maisonette | Leasehold |
| 18 North Western Avenue, Watford, WD25 0AE | Jun 2023 | £525,000 | Semi-detached | Freehold |
| Dome Filling Station North Western Avenue, Watford, WD25 0AE | Dec 2022 | £137,600 | Other property | Freehold |
| 58 North Western Avenue, Watford, WD25 0AE | Aug 2022 | £680,000 | Detached | Freehold |
| 56 North Western Avenue, Watford, WD25 0AE | Aug 2021 | £555,000 | Semi-detached | Freehold |
| 50 North Western Avenue, Watford, WD25 0AE | May 2021 | £560,000 | Semi-detached | Freehold |
| 36 North Western Avenue, Watford, WD25 0AE | Oct 2020 | £430,000 | Semi-detached | Freehold |
| 52 North Western Avenue, Watford, WD25 0AE | Oct 2016 | £485,000 | Semi-detached | Freehold |
| 54 North Western Avenue, Watford, WD25 0AE | Sep 2016 | £475,000 | Semi-detached | Freehold |
| 28 North Western Avenue, Watford, WD25 0AE | Dec 2015 | £510,000 | Detached | Freehold |
| 68 North Western Avenue, Watford, WD25 0AE | Jan 2014 | £298,000 | Semi-detached | Freehold |
| 40 North Western Avenue, Watford, WD25 0AE | Oct 2013 | £301,000 | Semi-detached | Freehold |
| 70 North Western Avenue, Watford, WD25 0AE | Jul 2013 | £250,000 | Semi-detached | Freehold |
| 24 North Western Avenue, Watford, WD25 0AE | Nov 2010 | £330,000 | Semi-detached | Freehold |
| 46A North Western Avenue, Watford, WD25 0AE | Jun 2010 | £143,000 | Flat / maisonette | Leasehold |
| 48 North Western Avenue, Watford, WD25 0AE | Jan 2008 | £305,000 | Semi-detached | Freehold |
| 26 North Western Avenue, Watford, WD25 0AE | Sep 2004 | £249,950 | Semi-detached | Freehold |
| 30 North Western Avenue, Watford, WD25 0AE | Aug 2004 | £300,000 | Semi-detached | Freehold |
| 46B North Western Avenue, Watford, WD25 0AE | Dec 2003 | £118,000 | Flat / maisonette | Leasehold |
| 22 North Western Avenue, Watford, WD25 0AE | Aug 2001 | £205,000 | Detached | Freehold |
| 14 North Western Avenue, Watford, WD25 0AE | Apr 2000 | £163,000 | Semi-detached | Freehold |
| 64 North Western Avenue, Watford, WD25 0AE | Jul 1999 | £111,000 | Semi-detached | Freehold |
| 66 North Western Avenue, Watford, WD25 0AE | Apr 1999 | £87,000 | Semi-detached | Freehold |
| 12 North Western Avenue, Watford, WD25 0AE | Mar 1998 | £140,000 | Detached | Freehold |