| Flat 1, 19 Collison Avenue, Barnet, EN5 3BQ | Apr 2026 | £435,000 | Flat / maisonette | Leasehold |
| Flat 2, 17 Collison Avenue, Barnet, EN5 3BQ | Mar 2026 | £455,000 | Flat / maisonette | Leasehold |
| Flat 10, 17 Collison Avenue, Barnet, EN5 3BQ | Jan 2026 | £500,000 | Flat / maisonette | Leasehold |
| Flat 2, 15 Collison Avenue, Barnet, EN5 3BQ | Oct 2025 | £320,000 | Flat / maisonette | Leasehold |
| Flat 11, 17 Collison Avenue, Barnet, EN5 3BQ | Sep 2025 | £442,500 | Flat / maisonette | Leasehold |
| Flat 12, 15 Collison Avenue, Barnet, EN5 3BQ | May 2025 | £465,000 | Flat / maisonette | Leasehold |
| Flat 12, 17 Collison Avenue, Barnet, EN5 3BQ | May 2025 | £445,000 | Flat / maisonette | Leasehold |
| Flat 5, 17 Collison Avenue, Barnet, EN5 3BQ | Mar 2025 | £462,500 | Flat / maisonette | Leasehold |
| 3 Collison Avenue, Barnet, EN5 3BQ | Feb 2025 | £930,000 | Semi-detached | Freehold |
| Flat 8, 15 Collison Avenue, Barnet, EN5 3BQ | Aug 2024 | £450,000 | Flat / maisonette | Leasehold |
| Flat 3, 15 Collison Avenue, Barnet, EN5 3BQ | Jul 2024 | £350,000 | Flat / maisonette | Leasehold |
| Flat 10, 13 Collison Avenue, Barnet, EN5 3BQ | Sep 2023 | £675,000 | Flat / maisonette | Leasehold |
| Flat 7, 15 Collison Avenue, Barnet, EN5 3BQ | Aug 2023 | £370,000 | Flat / maisonette | Leasehold |
| Flat 20, 15 Collison Avenue, Barnet, EN5 3BQ | Jan 2023 | £495,000 | Flat / maisonette | Leasehold |
| Flat 5, 13 Collison Avenue, Barnet, EN5 3BQ | Oct 2022 | £565,000 | Flat / maisonette | Leasehold |
| Flat 15, 17 Collison Avenue, Barnet, EN5 3BQ | Aug 2022 | £367,500 | Flat / maisonette | Leasehold |
| Flat 11, 15 Collison Avenue, Barnet, EN5 3BQ | Aug 2022 | £372,500 | Flat / maisonette | Leasehold |
| Flat 3, 13 Collison Avenue, Barnet, EN5 3BQ | Jul 2022 | £560,000 | Flat / maisonette | Leasehold |
| Flat 19, 15 Collison Avenue, Barnet, EN5 3BQ | Apr 2022 | £570,000 | Flat / maisonette | Leasehold |
| Flat 24, 15 Collison Avenue, Barnet, EN5 3BQ | Mar 2022 | £640,000 | Flat / maisonette | Leasehold |
| Flat 14, 15 Collison Avenue, Barnet, EN5 3BQ | Nov 2021 | £347,500 | Flat / maisonette | Leasehold |
| Flat 21, 15 Collison Avenue, Barnet, EN5 3BQ | Oct 2021 | £500,000 | Flat / maisonette | Leasehold |
| Flat 22, 15 Collison Avenue, Barnet, EN5 3BQ | Jun 2021 | £600,000 | Flat / maisonette | Leasehold |
| Flat 15, 15 Collison Avenue, Barnet, EN5 3BQ | May 2021 | £600,000 | Flat / maisonette | Leasehold |
| Flat 5, 19 Collison Avenue, Barnet, EN5 3BQ | Sep 2019 | £141,000 | Flat / maisonette | Leasehold |
| Flat 6, 19 Collison Avenue, Barnet, EN5 3BQ | Sep 2019 | £117,500 | Flat / maisonette | Leasehold |
| Flat 10, 19 Collison Avenue, Barnet, EN5 3BQ | Aug 2019 | £118,750 | Flat / maisonette | Leasehold |
| Flat 3, 17 Collison Avenue, Barnet, EN5 3BQ | Aug 2019 | £235,000 | Flat / maisonette | Leasehold |
| 11 Collison Avenue, Barnet, EN5 3BQ | Jun 2019 | £970,000 | Semi-detached | Freehold |
| 9 Collison Avenue, Barnet, EN5 3BQ | Apr 2019 | £941,000 | Semi-detached | Freehold |