| 1, Collison Avenue, Barnet | Freehold | 182 m² | £950,000 (2018) |
| 2 Collison Avenue, Barnet | - | 124 m² | - |
| 3, Collison Avenue, Barnet | Freehold | 179 m² | £930,000 (2025) |
| 4 Collison Avenue, Barnet | - | 262 m² | - |
| 5, Collison Avenue, Barnet | Freehold | 169 m² | £915,000 (2018) |
| 6 Collison Avenue, Barnet | - | 233 m² | - |
| 7, Collison Avenue, Barnet | Freehold | 169 m² | £945,000 (2018) |
| 8 Collison Avenue, Barnet | - | 223 m² | - |
| 9, Collison Avenue, Barnet | Freehold | 179 m² | £941,000 (2019) |
| 11, Collison Avenue, Barnet | Freehold | 179 m² | £970,000 (2019) |
| 20 Collison Avenue, Barnet | - | 223 m² | - |
| 22 Collison Avenue, Barnet | - | 233 m² | - |
| 24 Collison Avenue, Barnet | - | 223 m² | - |
| 26 Collison Avenue, Barnet | - | 124 m² | - |
| 30 Collison Avenue, Barnet | - | 266 m² | - |
| Flat 1, 13, Collison Avenue, Barnet | Leasehold | 83 m² | £520,000 (2017) |
| Flat 1, 15, Collison Avenue, Barnet | Leasehold | 81 m² | £510,000 (2018) |
| Flat 1, 17, Collison Avenue, Barnet | - | 69 m² | - |
| Flat 1, 19, Collison Avenue, Barnet | Leasehold | 78 m² | £435,000 (2026) |
| Flat 2, 13, Collison Avenue, Barnet | Leasehold | 89 m² | £550,000 (2017) |
| Flat 2, 15, Collison Avenue, Barnet | Leasehold | 54 m² | £320,000 (2025) |
| Flat 2, 17, Collison Avenue, Barnet | Leasehold | 76 m² | £455,000 (2026) |
| Flat 2, 19, Collison Avenue, Barnet | - | 73 m² | - |
| Flat 3, 13, Collison Avenue, Barnet | Leasehold | 84 m² | £560,000 (2022) |
| Flat 3, 15, Collison Avenue, Barnet | Leasehold | 58 m² | £350,000 (2024) |
| Flat 3, 17, Collison Avenue, Barnet | Leasehold | 74 m² | £235,000 (2019) |
| Flat 3, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 4, 13, Collison Avenue, Barnet | Leasehold | 83 m² | £525,000 (2017) |
| Flat 4, 15, Collison Avenue, Barnet | Leasehold | 73 m² | £464,500 (2018) |
| Flat 4, 17, Collison Avenue, Barnet | - | 68 m² | - |
| Flat 4, 19, Collison Avenue, Barnet | - | 72 m² | - |
| Flat 5, 13, Collison Avenue, Barnet | Leasehold | 89 m² | £565,000 (2022) |
| Flat 5, 15, Collison Avenue, Barnet | Leasehold | 81 m² | £499,999 (2018) |
| Flat 5, 17, Collison Avenue, Barnet | Leasehold | 69 m² | £462,500 (2025) |
| Flat 5, 19, Collison Avenue, Barnet | Leasehold | 78 m² | £141,000 (2019) |
| Flat 6, 13, Collison Avenue, Barnet | Leasehold | 84 m² | £525,000 (2017) |
| Flat 6, 15, Collison Avenue, Barnet | Leasehold | 54 m² | £355,000 (2018) |
| Flat 6, 17, Collison Avenue, Barnet | Leasehold | 76 m² | £485,000 (2018) |
| Flat 6, 19, Collison Avenue, Barnet | Leasehold | 73 m² | £117,500 (2019) |
| Flat 7, 13, Collison Avenue, Barnet | Leasehold | 83 m² | £540,000 (2017) |
| Flat 7, 15, Collison Avenue, Barnet | Leasehold | 58 m² | £370,000 (2023) |
| Flat 7, 17, Collison Avenue, Barnet | Leasehold | 74 m² | £475,000 (2018) |
| Flat 7, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 8, 13, Collison Avenue, Barnet | Leasehold | 89 m² | £560,000 (2017) |
| Flat 8, 15, Collison Avenue, Barnet | Leasehold | 73 m² | £450,000 (2024) |
| Flat 8, 17, Collison Avenue, Barnet | Leasehold | 68 m² | £460,000 (2018) |
| Flat 8, 19 Collison Avenue, Barnet | - | 67 m² | - |
| Flat 9, 13, Collison Avenue, Barnet | Leasehold | 84 m² | £540,000 (2017) |
| Flat 9, 15 Collison Avenue, Barnet | Leasehold | 81 m² | £520,000 (2018) |
| Flat 9, 17, Collison Avenue, Barnet | Leasehold | 69 m² | £475,000 (2018) |
| Flat 9, 19, Collison Avenue, Barnet | - | 78 m² | - |
| Flat 10, 13, Collison Avenue, Barnet | Leasehold | 109 m² | £675,000 (2023) |
| Flat 10, 15, Collison Avenue, Barnet | Leasehold | 54 m² | £370,000 (2018) |
| Flat 10, 17, Collison Avenue, Barnet | Leasehold | 76 m² | £500,000 (2026) |
| Flat 10, 19, Collison Avenue, Barnet | Leasehold | 73 m² | £118,750 (2019) |
| Flat 11, 13, Collison Avenue, Barnet | Leasehold | 103 m² | £611,000 (2017) |
| Flat 11, 15, Collison Avenue, Barnet | Leasehold | 58 m² | £372,500 (2022) |
| Flat 11, 17, Collison Avenue, Barnet | Leasehold | 74 m² | £442,500 (2025) |
| Flat 11, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 12, 15, Collison Avenue, Barnet | Leasehold | 73 m² | £465,000 (2025) |
| Flat 12, 17, Collison Avenue, Barnet | Leasehold | 68 m² | £445,000 (2025) |
| Flat 12, 19, Collison Avenue, Barnet | - | 72 m² | - |
| Flat 13, 15, Collison Avenue, Barnet | Leasehold | 98 m² | £568,000 (2018) |
| Flat 13, 17, Collison Avenue, Barnet | Leasehold | 55 m² | £360,000 (2018) |
| Flat 13, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 14, 15, Collison Avenue, Barnet | Leasehold | 54 m² | £347,500 (2021) |
| Flat 14, 17, Collison Avenue, Barnet | Leasehold | 65 m² | £375,000 (2018) |
| Flat 14, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 15, 15, Collison Avenue, Barnet | Leasehold | 119 m² | £600,000 (2021) |
| Flat 15, 17, Collison Avenue, Barnet | Leasehold | 61 m² | £367,500 (2022) |
| Flat 15, 19 Collison Avenue, Barnet | - | 73 m² | - |
| Flat 16, 15, Collison Avenue, Barnet | Leasehold | 99 m² | £585,000 (2018) |
| Flat 16, 17, Collison Avenue, Barnet | Leasehold | 54 m² | £360,000 (2018) |
| Flat 16, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 17, 15, Collison Avenue, Barnet | Leasehold | 80 m² | £500,000 (2018) |
| Flat 17, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 18, 15, Collison Avenue, Barnet | Leasehold | 71 m² | £450,000 (2018) |
| Flat 18, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 19, 15, Collison Avenue, Barnet | Leasehold | 89 m² | £570,000 (2022) |
| Flat 19, 19 Collison Avenue, Barnet | - | 67 m² | - |
| Flat 20, 15, Collison Avenue, Barnet | Leasehold | 80 m² | £495,000 (2023) |
| Flat 20, 19, Collison Avenue, Barnet | - | 71 m² | - |
| Flat 21, 15, Collison Avenue, Barnet | Leasehold | 71 m² | £500,000 (2021) |
| Flat 21, 19 Collison Avenue, Barnet | - | 73 m² | - |
| Flat 22, 15, Collison Avenue, Barnet | Leasehold | 89 m² | £600,000 (2021) |
| Flat 23, 15, Collison Avenue, Barnet | Leasehold | 113 m² | £640,000 (2018) |
| Flat 24, 15, Collison Avenue, Barnet | Leasehold | 113 m² | £640,000 (2022) |
