| 45 Courtenay Avenue, Harrow, HA3 5JH | Jul 2026 | £292,000 | Terraced | Freehold |
| Ground Floor Flat, 16 Courtenay Avenue, Harrow, HA3 5JJ | Aug 2025 | £325,000 | Flat / maisonette | Leasehold |
| 114 Courtenay Avenue, Harrow, HA3 6LN | Nov 2024 | £417,000 | Terraced | Freehold |
| 91 Courtenay Avenue, Harrow, HA3 6LJ | Oct 2024 | £448,000 | Terraced | Freehold |
| 122 Courtenay Avenue, Harrow, HA3 6LN | Jun 2023 | £420,000 | Semi-detached | Freehold |
| 199 Courtenay Avenue, Harrow, HA3 6PT | Oct 2022 | £440,000 | Semi-detached | Freehold |
| Flat 1, 157 Courtenay Avenue, Harrow, HA3 6LJ | Sep 2022 | £375,000 | Flat / maisonette | Leasehold |
| 50 Courtenay Avenue, Harrow, HA3 5JJ | Mar 2022 | £475,000 | Semi-detached | Freehold |
| 149 Courtenay Avenue, Harrow, HA3 6LJ | Oct 2021 | £442,000 | Terraced | Freehold |
| 143 Courtenay Avenue, Harrow, HA3 6LJ | Sep 2021 | £555,000 | Semi-detached | Freehold |
| 130 Courtenay Avenue, Harrow, HA3 6LN | Aug 2020 | £368,000 | Semi-detached | Freehold |
| 76 Courtenay Avenue, Harrow, HA3 6LL | Dec 2018 | £362,500 | Terraced | Freehold |
| 161 Courtenay Avenue, Harrow, HA3 6LJ | Aug 2018 | £427,101 | Semi-detached | Freehold |
| 106 Courtenay Avenue, Harrow, HA3 6LN | Aug 2018 | £326,000 | Terraced | Freehold |
| Flat 2, 157 Courtenay Avenue, Harrow, HA3 6LJ | Oct 2017 | £315,000 | Flat / maisonette | Leasehold |
| 87 Courtenay Avenue, Harrow, HA3 6LJ | Jul 2017 | £403,000 | Terraced | Freehold |
| 81 Courtenay Avenue, Harrow, HA3 6LJ | Feb 2016 | £393,000 | Terraced | Freehold |
| 67 Courtenay Avenue, Harrow, HA3 6LJ | Jan 2016 | £365,000 | Terraced | Freehold |
| 15 Courtenay Avenue, Harrow, HA3 5JH | Nov 2015 | £320,000 | Terraced | Freehold |
| 157 Courtenay Avenue, Harrow, HA3 6LJ | Sep 2015 | £396,000 | Semi-detached | Freehold |
| 154 Courtenay Avenue, Harrow, HA3 6LW | Mar 2015 | £160,000 | Terraced | Freehold |
| 118 Courtenay Avenue, Harrow, HA3 6LN | Feb 2015 | £299,000 | Terraced | Freehold |
| 191 Courtenay Avenue, Harrow, HA3 6PT | Nov 2014 | £290,000 | Semi-detached | Freehold |
| 183 Courtenay Avenue, Harrow, HA3 6PT | Mar 2014 | £245,000 | Semi-detached | Freehold |
| 197 Courtenay Avenue, Harrow, HA3 6PT | Dec 2012 | £238,000 | Semi-detached | Freehold |
| 65 Courtenay Avenue, Harrow, HA3 6LJ | Feb 2012 | £250,000 | Terraced | Freehold |
| 85 Courtenay Avenue, Harrow, HA3 6LJ | Apr 2011 | £205,000 | Terraced | Freehold |
| 100 Courtenay Avenue, Harrow, HA3 6LN | Nov 2010 | £192,500 | Semi-detached | Freehold |
| 17 Courtenay Avenue, Harrow, HA3 5JH | Aug 2010 | £249,999 | Semi-detached | Freehold |
| 92 Courtenay Avenue, Harrow, HA3 6LN | Dec 2009 | £196,000 | Terraced | Freehold |