| 1 Northumberland Gardens, London | Freehold | 90 m² | £455,000 (2025) |
| 3, Northumberland Gardens, London | Freehold | 100 m² | £225,000 (2009) |
| 5 Northumberland Gardens, London | Freehold | 79 m² | £440,000 (2023) |
| 6 Northumberland Gardens, London | - | 55 m² | - |
| 6A Northumberland Gardens, Edmonton, Edmonton | - | 42 m² | - |
| 7 Northumberland Gardens, London | - | 88 m² | - |
| 8 Northumberland Gardens, London | Freehold | 90 m² | £210,000 (2009) |
| 9, Northumberland Gardens, London | Freehold | 88 m² | £250,000 (2011) |
| 10, Northumberland Gardens, London | Freehold | 103 m² | £457,000 (2020) |
| 12 Northumberland Gardens, Edmonton, Edmonton | Freehold | 100 m² | £400,000 (2016) |
| 13, Northumberland Gardens, London | Freehold | 96 m² | £420,000 (2020) |
| 14 Northumberland Gardens, London | Freehold | 90 m² | £375,000 (2025) |
| 15, Northumberland Gardens, London | Freehold | 91 m² | £250,000 (2013) |
| 17, Northumberland Gardens, London | Freehold | 98 m² | £388,000 (2017) |
| 18, Northumberland Gardens, London | Freehold | 97 m² | £395,000 (2019) |
| 19, Northumberland Gardens, London | Freehold | 89 m² | £77,000 (1996) |
| 20 Northumberland Gardens, London | Freehold | 86 m² | £450,000 (2026) |
| 21 Northumberland Gardens, London | Freehold | 101 m² | £210,000 (2003) |
| 22, Northumberland Gardens, London | Freehold | 85 m² | £290,000 (2014) |
| 24, Northumberland Gardens, London | Freehold | 131 m² | £387,500 (2019) |
| 25, Northumberland Gardens, London | Freehold | 115 m² | £210,000 (2009) |
| 25A Northumberland Gardens, London | - | 67 m² | - |
| 26 Northumberland Gardens, London | Freehold | 91 m² | £470,000 (2022) |
| 27 Northumberland Gardens, London | Freehold | 145 m² | £207,000 (2011) |
| 29 Northumberland Gardens, London | Freehold | 88 m² | £515,000 (2024) |
| 35 Northumberland Gardens, Edmonton, Edmonton | Freehold | 84 m² | £592,500 (2021) |
