| Flat 47, Oxenholme Harrington Square, London, NW1 2JN | Jul 2026 | £380,000 | Flat / maisonette | Leasehold |
| Flat 13, Hurdwick House Harrington Square, London, NW1 2JH | Jun 2021 | £500,000 | Flat / maisonette | Leasehold |
| Flat 52, Dalehead Harrington Square, London, NW1 2JL | Apr 2020 | £449,000 | Flat / maisonette | Leasehold |
| Flat E, 17 - 18 Harrington Square, London, NW1 2JJ | Dec 2019 | £730,000 | Flat / maisonette | Leasehold |
| Flat 59, Dalehead Harrington Square, London, NW1 2JL | Jul 2019 | £475,000 | Flat / maisonette | Leasehold |
| 21 Harrington Square, London, NW1 2JJ | Apr 2019 | £2,100,000 | Terraced | Freehold |
| Flat 78, Oxenholme Harrington Square, London, NW1 2JN | Jun 2018 | £400,000 | Flat / maisonette | Leasehold |
| Flat 19, Oxenholme Harrington Square, London, NW1 2JN | Mar 2016 | £480,000 | Flat / maisonette | Leasehold |
| Flat 1, Hurdwick House Harrington Square, London, NW1 2JH | Feb 2016 | £592,000 | Flat / maisonette | Leasehold |
| Flat 4, Hurdwick House Harrington Square, London, NW1 2JH | Feb 2016 | £592,000 | Flat / maisonette | Leasehold |
| Flat A, 22 Harrington Square, London, NW1 2JJ | Jul 2013 | £660,000 | Flat / maisonette | Leasehold |
| Flat 74, Oxenholme Harrington Square, London, NW1 2JN | Sep 2012 | £240,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 24 Harrington Square, London, NW1 2JJ | Aug 2012 | £295,000 | Flat / maisonette | Leasehold |
| 19A Harrington Square, London, NW1 2JJ | Jan 2012 | £500,000 | Flat / maisonette | Leasehold |
| Second And Third Floor Flat, 24 Harrington Square, London, NW1 2JJ | Nov 2010 | £500,000 | Flat / maisonette | Leasehold |
| Flat 26, Dalehead Harrington Square, London, NW1 2JL | Oct 2010 | £235,000 | Flat / maisonette | Leasehold |
| First Floor Flat, 24 Harrington Square, London, NW1 2JJ | Oct 2009 | £266,000 | Flat / maisonette | Leasehold |
| 15C Harrington Square, London, NW1 2JJ | Dec 2008 | £285,000 | Flat / maisonette | Leasehold |
| Flat 9, Dalehead Harrington Square, London, NW1 2JL | Mar 2008 | £201,000 | Flat / maisonette | Leasehold |
| 24A Harrington Square, London, NW1 2JJ | Mar 2007 | £317,500 | Flat / maisonette | Leasehold |
| Flat 17, Hurdwick House Harrington Square, London, NW1 2JH | Mar 2004 | £172,000 | Flat / maisonette | Leasehold |
| Flat 10, Hurdwick House Harrington Square, London, NW1 2JH | May 2001 | £180,000 | Flat / maisonette | Leasehold |
| Flat 18, Hurdwick House Harrington Square, London, NW1 2JH | Mar 1998 | £97,000 | Flat / maisonette | Leasehold |