| 3, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Nov 2025 | £425,000 | Flat / maisonette | Leasehold |
| 8, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Sep 2025 | £465,000 | Flat / maisonette | Leasehold |
| 23 Northwick Park Road, Harrow, HA1 2NY | Mar 2025 | £1,188,000 | Semi-detached | Freehold |
| 19 Northwick Park Road, Harrow, HA1 2NY | Oct 2024 | £1,170,000 | Detached | Freehold |
| 29 Northwick Park Road, Harrow, HA1 2NY | Jan 2024 | £685,000 | Semi-detached | Freehold |
| 9 Northwick Park Road, Harrow, HA1 2NY | Sep 2023 | £850,000 | Semi-detached | Freehold |
| 15 Northwick Park Road, Harrow, HA1 2NY | Jan 2023 | £1,060,000 | Detached | Freehold |
| 9, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Jun 2021 | £503,000 | Flat / maisonette | Leasehold |
| 4, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Jan 2021 | £460,000 | Flat / maisonette | Leasehold |
| 1, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Dec 2016 | £240,000 | Flat / maisonette | Leasehold |
| 27 Northwick Park Road, Harrow, HA1 2NY | Jul 2016 | £745,000 | Semi-detached | Freehold |
| 5, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Jun 2016 | £420,000 | Flat / maisonette | Leasehold |
| 6, Excelsior Apartments, 1 Northwick Park Road, Harrow, HA1 2NY | Jun 2016 | £427,000 | Flat / maisonette | Leasehold |
| 31 Northwick Park Road, Harrow, HA1 2NY | Mar 2013 | £422,000 | Semi-detached | Freehold |
| 35 Northwick Park Road, Harrow, HA1 2NY | Jun 2005 | £315,000 | Semi-detached | Freehold |
| 25 Northwick Park Road, Harrow, HA1 2NY | Mar 2004 | £471,500 | Detached | Freehold |
| 13 Northwick Park Road, Harrow, HA1 2NY | Jan 2004 | £472,000 | Detached | Freehold |
| 11 Northwick Park Road, Harrow, HA1 2NY | Aug 2003 | £489,000 | Semi-detached | Freehold |
| 43 Northwick Park Road, Harrow, HA1 2NY | May 2003 | £328,000 | Semi-detached | Freehold |
| 37 Northwick Park Road, Harrow, HA1 2NY | Mar 2003 | £295,000 | Semi-detached | Freehold |
| 21 Northwick Park Road, Harrow, HA1 2NY | Dec 1999 | £320,000 | Semi-detached | Freehold |