| Flat 2, Whaddon House William Mews, London, SW1X 9HG | Apr 2022 | £1,375,000 | Flat / maisonette | Leasehold |
| Flat 16, Whaddon House William Mews, London, SW1X 9HG | Jan 2022 | £1,600,000 | Flat / maisonette | Leasehold |
| Flat 6, Whaddon House William Mews, London, SW1X 9HG | Jul 2021 | £1,750,000 | Flat / maisonette | Leasehold |
| Flat 18, Whaddon House William Mews, London, SW1X 9HG | Feb 2021 | £1,470,000 | Flat / maisonette | Leasehold |
| Flat 10, Whaddon House William Mews, London, SW1X 9HG | Jan 2021 | £1,750,000 | Flat / maisonette | Leasehold |
| Flat 5, Whaddon House William Mews, London, SW1X 9HG | Jul 2018 | £1,720,000 | Flat / maisonette | Leasehold |
| Flat 12, Whaddon House William Mews, London, SW1X 9HG | Apr 2018 | £2,500,000 | Flat / maisonette | Leasehold |
| Flat 26, Whaddon House William Mews, London, SW1X 9HG | Apr 2018 | £985,000 | Flat / maisonette | Leasehold |
| Flat 12A, Whaddon House William Mews, London, SW1X 9HG | Jan 2010 | £1,700,000 | Flat / maisonette | Leasehold |
| Flat 9, Whaddon House William Mews, London, SW1X 9HG | Jul 2005 | £807,000 | Flat / maisonette | Leasehold |
| Flat 15, Whaddon House William Mews, London, SW1X 9HG | May 2004 | £820,000 | Flat / maisonette | Leasehold |
| Flat 3, Whaddon House William Mews, London, SW1X 9HG | Jul 2003 | £700,000 | Flat / maisonette | Leasehold |
| Flat 17, Whaddon House William Mews, London, SW1X 9HG | May 1995 | £50,000 | Flat / maisonette | Leasehold |