| 20 Northwick Avenue, Harrow, HA3 0AB | Dec 2016 | £600,000 | Semi-detached | Freehold |
| 112 Northwick Avenue, Harrow, HA3 0AT | Oct 2016 | £845,000 | Terraced | Freehold |
| 31 Northwick Avenue, Harrow, HA3 0AA | Oct 2016 | £1,210,000 | Detached | Freehold |
| 72 Northwick Avenue, Harrow, HA3 0AT | Aug 2016 | £595,000 | Semi-detached | Freehold |
| Flat 9, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2016 | £270,000 | Flat / maisonette | Leasehold |
| 102 Northwick Avenue, Harrow, HA3 0AT | Mar 2016 | £590,000 | Semi-detached | Freehold |
| 24 Northwick Avenue, Harrow, HA3 0AB | Feb 2016 | £617,200 | Terraced | Freehold |
| 16 Northwick Avenue, Harrow, HA3 0AB | Jun 2015 | £450,000 | Detached | Freehold |
| 66A Northwick Avenue, Harrow, HA3 0AB | May 2015 | £260,000 | Flat / maisonette | Leasehold |
| 52 Northwick Avenue, Harrow, HA3 0AB | May 2015 | £550,000 | Semi-detached | Freehold |
| 7 Northwick Avenue, Harrow, HA3 0AA | Apr 2015 | £750,000 | Detached | Freehold |
| Flat 34, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Sep 2014 | £295,000 | Flat / maisonette | Leasehold |
| Flat 14, Farrans Court Northwick Avenue, Kenton, Harrow, HA3 0AT | Sep 2014 | £220,000 | Flat / maisonette | Leasehold |
| 31 Northwick Avenue, Harrow, HA3 0AA | Jul 2014 | £599,950 | Detached | Freehold |
| 100 Northwick Avenue, Harrow, HA3 0AT | May 2014 | £566,000 | Semi-detached | Freehold |
| 80 Northwick Avenue, Harrow, HA3 0AT | Apr 2014 | £535,000 | Detached | Freehold |
| Flat 5, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Nov 2013 | £189,000 | Flat / maisonette | Leasehold |
| 8 Northwick Avenue, Harrow, HA3 0AB | Sep 2013 | £456,000 | Semi-detached | Freehold |
| 98 Northwick Avenue, Harrow, HA3 0AT | Sep 2013 | £465,000 | Semi-detached | Freehold |
| Flat 2, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Feb 2013 | £182,000 | Flat / maisonette | Leasehold |
| 108 Northwick Avenue, Harrow, HA3 0AT | Oct 2012 | £490,000 | Semi-detached | Freehold |
| 35 Northwick Avenue, Harrow, HA3 0AA | Sep 2012 | £487,000 | Semi-detached | Freehold |
| 4A Northwick Avenue, Harrow, HA3 0AB | Sep 2012 | £324,000 | Terraced | Freehold |
| 48 Northwick Avenue, Harrow, HA3 0AB | Sep 2012 | £400,000 | Semi-detached | Freehold |
| 17 Northwick Avenue, Kenton, Harrow, HA3 0AA | Nov 2011 | £415,000 | Semi-detached | Freehold |
| 5 Northwick Avenue, Kenton, Harrow, HA3 0AA | Nov 2011 | £575,000 | Detached | Freehold |
| 29 Northwick Avenue, Harrow, HA3 0AA | Oct 2011 | £475,000 | Semi-detached | Freehold |
| Flat 6, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Aug 2011 | £250,000 | Flat / maisonette | Leasehold |
| Kunjan Villa, 57A Northwick Avenue, Harrow, HA3 0AU | Aug 2011 | £530,000 | Detached | Freehold |
| Flat 3, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2011 | £164,000 | Flat / maisonette | Leasehold |
| Flat 7, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jul 2011 | £305,000 | Flat / maisonette | Leasehold |
| Flat 2, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £249,950 | Flat / maisonette | Leasehold |
| Flat 3, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £315,000 | Flat / maisonette | Leasehold |
| Flat 10, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £249,950 | Flat / maisonette | Leasehold |
| Flat 9, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £249,999 | Flat / maisonette | Leasehold |
| Flat 5, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £330,763 | Flat / maisonette | Leasehold |
| Flat 13, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £265,000 | Flat / maisonette | Leasehold |
| Flat 13, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £233,000 | Flat / maisonette | Leasehold |
| Flat 4, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £249,950 | Flat / maisonette | Leasehold |
| Flat 1, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | Jun 2011 | £310,000 | Flat / maisonette | Leasehold |
| Flat 12, Clementine Court, 65 Northwick Avenue, Harrow, HA3 0DG | May 2011 | £249,950 | Flat / maisonette | Leasehold |
| Flat 23, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Feb 2011 | £170,250 | Flat / maisonette | Leasehold |
| 44 Northwick Avenue, Harrow, HA3 0AB | Feb 2011 | £420,000 | Semi-detached | Freehold |
| 37 Northwick Avenue, Harrow, HA3 0AA | Sep 2010 | £462,000 | Semi-detached | Freehold |
| Flat 1, Kelly Court, 116 Northwick Avenue, Harrow, HA3 0AT | Nov 2007 | £165,000 | Flat / maisonette | Leasehold |
| 4E Northwick Avenue, Harrow, HA3 0AB | Oct 2007 | £335,000 | Semi-detached | Freehold |
| 66A Northwick Avenue, Harrow, HA3 0AB | May 2007 | £100,000 | Flat / maisonette | Leasehold |
| Flat 25, Farrans Court Northwick Avenue, Harrow, HA3 0AT | May 2007 | £170,000 | Flat / maisonette | Leasehold |
| Flat 30, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jun 2006 | £182,500 | Flat / maisonette | Leasehold |
| Flat 2, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Apr 2006 | £165,000 | Flat / maisonette | Leasehold |
| Flat 19, Farrans Court Northwick Avenue, Kenton, Harrow, HA3 0AT | Nov 2004 | £199,000 | Flat / maisonette | Leasehold |
| Flat 1, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Oct 2004 | £162,500 | Flat / maisonette | Leasehold |
| Flat 34, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Aug 2004 | £191,500 | Flat / maisonette | Leasehold |
| 78 Northwick Avenue, Harrow, HA3 0AT | Jan 2004 | £159,950 | Flat / maisonette | Leasehold |
| Flat 24, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Sep 2003 | £137,000 | Flat / maisonette | Leasehold |
| Flat 1, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2003 | £143,000 | Flat / maisonette | Leasehold |
| Flat 1, Kelly Court, 116 Northwick Avenue, Harrow, HA3 0AT | Jun 2003 | £129,000 | Flat / maisonette | Leasehold |
| Flat 22, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Feb 2003 | £165,000 | Flat / maisonette | Leasehold |
| 4D Northwick Avenue, Harrow, HA3 0AB | Dec 2002 | £242,000 | Terraced | Freehold |
| 16 Northwick Avenue, Harrow, HA3 0AB | Jan 2001 | £160,000 | Detached | Freehold |
| Flat 5, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Dec 2000 | £91,000 | Flat / maisonette | Leasehold |
| Flat 25, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Nov 2000 | £89,500 | Flat / maisonette | Leasehold |
| 8 Northwick Avenue, Harrow, HA3 0AB | Oct 2000 | £180,000 | Semi-detached | Freehold |
| 4D Northwick Avenue, Harrow, HA3 0AB | Sep 2000 | £165,000 | Terraced | Freehold |
| 34 Northwick Avenue, Harrow, HA3 0AB | Aug 2000 | £170,000 | Semi-detached | Freehold |
| 102 Northwick Avenue, Harrow, HA3 0AT | Aug 2000 | £178,000 | Semi-detached | Freehold |
| Flat 24, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Aug 2000 | £87,000 | Flat / maisonette | Leasehold |
| Flat 34, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2000 | £109,000 | Flat / maisonette | Leasehold |
| Flat 8, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2000 | £85,000 | Flat / maisonette | Leasehold |
| Flat 30, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 2000 | £118,250 | Flat / maisonette | Leasehold |
| 18 Northwick Avenue, Harrow, HA3 0AB | Jun 2000 | £289,000 | Semi-detached | Freehold |
| 110 Northwick Avenue, Harrow, HA3 0AT | Apr 2000 | £360,000 | Detached | Freehold |
| Flat 1, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Mar 2000 | £94,000 | Flat / maisonette | Leasehold |
| 4C Northwick Avenue, Harrow, HA3 0AB | Feb 2000 | £153,000 | Terraced | Freehold |
| 46 Northwick Avenue, Harrow, HA3 0AB | Jan 2000 | £241,000 | Semi-detached | Freehold |
| Flat 4, Kelly Court, 116 Northwick Avenue, Harrow, HA3 0AT | Jan 2000 | £86,000 | Flat / maisonette | Leasehold |
| 21 Northwick Avenue, Harrow, HA3 0AA | Nov 1999 | £260,000 | Detached | Freehold |
| 4B Northwick Avenue, Harrow, HA3 0AB | Oct 1999 | £166,500 | Terraced | Freehold |
| 4E Northwick Avenue, Harrow, HA3 0AB | Oct 1999 | £168,000 | Semi-detached | Freehold |
| Flat 21, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Oct 1999 | £85,000 | Flat / maisonette | Leasehold |
| Flat 1, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Oct 1999 | £83,950 | Flat / maisonette | Leasehold |
| Flat 8, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jul 1999 | £74,950 | Flat / maisonette | Leasehold |
| 21 Northwick Avenue, Harrow, HA3 0AA | Jul 1999 | £185,000 | Detached | Freehold |
| 78 Northwick Avenue, Harrow, HA3 0AT | May 1999 | £76,950 | Flat / maisonette | Leasehold |
| Flat 22, Farrans Court Northwick Avenue, Harrow, HA3 0AT | May 1999 | £80,000 | Flat / maisonette | Leasehold |
| 114 Northwick Avenue, Harrow, HA3 0AT | Mar 1999 | £100,000 | Semi-detached | Freehold |
| Flat 33, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Mar 1999 | £77,500 | Flat / maisonette | Leasehold |
| Flat 19, Farrans Court Northwick Avenue, Kenton, Harrow, HA3 0AT | Feb 1999 | £81,000 | Flat / maisonette | Leasehold |
| 30 Northwick Avenue, Harrow, HA3 0AB | Feb 1999 | £172,000 | Semi-detached | Freehold |
| Flat 4, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Jan 1999 | £62,500 | Flat / maisonette | Leasehold |
| Flat 2, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Dec 1998 | £66,000 | Flat / maisonette | Leasehold |
| 78 Northwick Avenue, Harrow, HA3 0AT | Jul 1998 | £66,000 | Flat / maisonette | Leasehold |
| Flat 25, Farrans Court Northwick Avenue, Harrow, HA3 0AT | May 1998 | £57,000 | Flat / maisonette | Leasehold |
| 108 Northwick Avenue, Harrow, HA3 0AT | Apr 1998 | £130,000 | Semi-detached | Freehold |
| Flat 8, Farrans Court Northwick Avenue, Harrow, HA3 0AT | May 1997 | £53,000 | Flat / maisonette | Leasehold |
| Flat 19, Farrans Court Northwick Avenue, Kenton, Harrow, HA3 0AT | Mar 1997 | £57,500 | Flat / maisonette | Leasehold |
| Flat 5, Farrans Court Northwick Avenue, Harrow, HA3 0AT | Aug 1996 | £49,995 | Flat / maisonette | Leasehold |
| Flat 1, Kelly Court, 116 Northwick Avenue, Harrow, HA3 0AT | Jul 1996 | £48,000 | Flat / maisonette | Leasehold |
| 44 Northwick Avenue, Harrow, HA3 0AB | Feb 1996 | £126,750 | Semi-detached | Freehold |
| 4C Northwick Avenue, Harrow, HA3 0AB | Jun 1995 | £77,000 | Terraced | Freehold |
| Flat 14, Farrans Court Northwick Avenue, Kenton, Harrow, HA3 0AT | May 1995 | £55,000 | Flat / maisonette | Leasehold |