| 52D Belsize Park Gardens, London, NW3 4ND | Apr 2026 | £885,000 | Flat / maisonette | Leasehold |
| Flat 2, 35 Belsize Park Gardens, London, NW3 4JJ | Apr 2026 | £2,000,000 | Flat / maisonette | Leasehold |
| Flat E, 19 Belsize Park Gardens, London, NW3 4JG | Feb 2026 | £1,325,000 | Other property | Leasehold |
| Flat G, 80 Belsize Park Gardens, London, NW3 4NG | Jan 2026 | £825,000 | Flat / maisonette | Leasehold |
| Flat D, 71 Belsize Park Gardens, London, NW3 4JP | Jan 2026 | £695,000 | Flat / maisonette | Leasehold |
| Flat I, 78 Belsize Park Gardens, London, NW3 4NG | Nov 2025 | £790,000 | Flat / maisonette | Leasehold |
| Flat H, 80 Belsize Park Gardens, London, NW3 4NG | Nov 2025 | £785,000 | Flat / maisonette | Leasehold |
| Flat 3, 29 Belsize Park Gardens, London, NW3 4JH | Oct 2025 | £1,500,000 | Flat / maisonette | Leasehold |
| Spencer House, 9 - 11 Belsize Park Gardens, London, NW3 4JR | Sep 2025 | £8,125,000 | Other property | Freehold |
| First Floor Flat, 41 Belsize Park Gardens, London, NW3 4JJ | Sep 2025 | £1,875,000 | Flat / maisonette | Leasehold |
| 37A Belsize Park Gardens, London, NW3 4JJ | Sep 2025 | £2,180,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 39 Belsize Park Gardens, London, NW3 4JJ | Jul 2025 | £1,500,000 | Flat / maisonette | Leasehold |
| 79C Belsize Park Gardens, London, NW3 4JP | Jul 2025 | £1,050,000 | Flat / maisonette | Leasehold |
| 25G Belsize Park Gardens, London, NW3 4JH | Jul 2025 | £845,000 | Semi-detached | Leasehold |
| First Floor Flat Front, 59 Belsize Park Gardens, London, NW3 4JN | Jun 2025 | £850,000 | Flat / maisonette | Leasehold |
| 12B Belsize Park Gardens, London, NW3 4LD | Jun 2025 | £887,500 | Flat / maisonette | Leasehold |
| Flat 4, 28 Belsize Park Gardens, London, NW3 4LH | Jun 2025 | £1,150,000 | Flat / maisonette | Leasehold |
| Garden Flat, 64 Belsize Park Gardens, London, NW3 4NE | Jun 2025 | £2,710,000 | Flat / maisonette | Leasehold |
| Flat D, 67 Belsize Park Gardens, London, NW3 4JN | Apr 2025 | £1,530,000 | Flat / maisonette | Leasehold |
| Flat 3, 28 Belsize Park Gardens, London, NW3 4LH | Mar 2025 | £475,000 | Flat / maisonette | Leasehold |
| Flat C, 71 Belsize Park Gardens, London, NW3 4JP | Mar 2025 | £705,000 | Flat / maisonette | Leasehold |
| Flat F, 78 Belsize Park Gardens, London, NW3 4NG | Mar 2025 | £860,000 | Flat / maisonette | Leasehold |
| 25D Belsize Park Gardens, London, NW3 4JH | Feb 2025 | £880,000 | Flat / maisonette | Leasehold |
| Garden Floor Flat, 62 Belsize Park Gardens, London, NW3 4NE | Jan 2025 | £2,905,000 | Flat / maisonette | Leasehold |
| Garden Floor Flat, 76 Belsize Park Gardens, London, NW3 4NG | Jan 2025 | £1,785,800 | Flat / maisonette | Leasehold |
| Flat 5, 13 Belsize Park Gardens, London, NW3 4JG | Jan 2025 | £1,520,000 | Flat / maisonette | Leasehold |
| 7A Belsize Park Gardens, London, NW3 4LB | Dec 2024 | £94,000 | Other property | Freehold |
| Garden Flat, 71 Belsize Park Gardens, London, NW3 4JP | Dec 2024 | £1,940,000 | Flat / maisonette | Leasehold |
| 54D Belsize Park Gardens, London, NW3 4ND | Dec 2024 | £1,800,000 | Flat / maisonette | Leasehold |
| 23F Belsize Park Gardens, London, NW3 4JH | Nov 2024 | £625,000 | Flat / maisonette | Leasehold |
| 44B Belsize Park Gardens, London, NW3 4LY | Nov 2024 | £1,085,000 | Flat / maisonette | Leasehold |
| Flat 6, 42 Belsize Park Gardens, London, NW3 4LY | Nov 2024 | £675,000 | Flat / maisonette | Leasehold |
| 63B - 63E Belsize Park Gardens, London, NW3 4JN | Nov 2024 | £625,000 | Flat / maisonette | Leasehold |
| Flat C, 37 Belsize Park Gardens, London, NW3 4JJ | Nov 2024 | £1,779,500 | Flat / maisonette | Leasehold |
| Basement Flat A, 59 Belsize Park Gardens, London, NW3 4JN | Oct 2024 | £425,000 | Flat / maisonette | Leasehold |
| Garden Flat, 68 Belsize Park Gardens, London, NW3 4NE | Oct 2024 | £2,750,000 | Flat / maisonette | Leasehold |
| Rear Ground Floor Flat, 12 Belsize Park Gardens, London, NW3 4LD | Sep 2024 | £850,000 | Flat / maisonette | Leasehold |
| Third Floor Flat, 61 Belsize Park Gardens, London, NW3 4JN | Jul 2024 | £30,000 | Other property | Leasehold |
| Second Floor Flat, 43 Belsize Park Gardens, London, NW3 4JJ | Jul 2024 | £1,580,000 | Flat / maisonette | Leasehold |
| Flat 2, 51 Belsize Park Gardens, London, NW3 4JL | Jun 2024 | £775,000 | Flat / maisonette | Leasehold |
| Flat E, 67 Belsize Park Gardens, London, NW3 4JN | May 2024 | £785,000 | Flat / maisonette | Leasehold |
| First Floor Flat, 54 Belsize Park Gardens, London, NW3 4ND | Apr 2024 | £950,000 | Flat / maisonette | Leasehold |
| Flat A (Rear), 67 Belsize Park Gardens, London, NW3 4JN | Mar 2024 | £747,000 | Flat / maisonette | Leasehold |
| Flat 7, 42 Belsize Park Gardens, London, NW3 4LY | Mar 2024 | £360,000 | Flat / maisonette | Leasehold |
| First Floor Flat, 17 Belsize Park Gardens, London, NW3 4JG | Feb 2024 | £1,838,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 44 Belsize Park Gardens, London, NW3 4LY | Feb 2024 | £1,750,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 17 Belsize Park Gardens, London, NW3 4JG | Feb 2024 | £1,750,000 | Flat / maisonette | Leasehold |
| Flat 2, 8 Belsize Park Gardens, London, NW3 4LD | Dec 2023 | £1,850,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 17 Belsize Park Gardens, London, NW3 4JG | Dec 2023 | £625,000 | Flat / maisonette | Leasehold |
| First Floor Flat, 22 Belsize Park Gardens, London, NW3 4LH | Sep 2023 | £1,685,000 | Flat / maisonette | Leasehold |
| Flat 5, 28 Belsize Park Gardens, London, NW3 4LH | Sep 2023 | £780,000 | Flat / maisonette | Leasehold |
| Flat 7, 73 Belsize Park Gardens, London, NW3 4JP | Sep 2023 | £810,500 | Flat / maisonette | Leasehold |
| Flat 2, 29 Belsize Park Gardens, London, NW3 4JH | Sep 2023 | £1,337,000 | Flat / maisonette | Leasehold |
| Flat 1, 8 Belsize Park Gardens, London, NW3 4LD | Aug 2023 | £1,850,000 | Flat / maisonette | Leasehold |
| Flat 9, 28 Belsize Park Gardens, London, NW3 4LH | Jun 2023 | £935,000 | Flat / maisonette | Leasehold |
| 66A Belsize Park Gardens, London, NW3 4NE | May 2023 | £2,450,000 | Flat / maisonette | Leasehold |
| 63D Belsize Park Gardens, London, NW3 4JN | Apr 2023 | £1,650,000 | Flat / maisonette | Leasehold |
| 56A Belsize Park Gardens, London, NW3 4ND | Mar 2023 | £1,730,000 | Flat / maisonette | Leasehold |
| 65B Belsize Park Gardens, London, NW3 4JN | Mar 2023 | £1,680,000 | Flat / maisonette | Leasehold |
| Flat B, 71 Belsize Park Gardens, London, NW3 4JP | Jan 2023 | £820,000 | Flat / maisonette | Leasehold |
| Flat 3, 33 Belsize Park Gardens, London, NW3 4JJ | Dec 2022 | £1,150,000 | Flat / maisonette | Leasehold |
| 83 Belsize Park Gardens, London, NW3 4NJ | Oct 2022 | £7,100,000 | Other property | Freehold |
| 65E Belsize Park Gardens, London, NW3 4JN | Oct 2022 | £885,000 | Flat / maisonette | Leasehold |
| Third Floor Flat, 44 Belsize Park Gardens, London, NW3 4LY | Oct 2022 | £749,950 | Flat / maisonette | Leasehold |
| Flat E, 80 Belsize Park Gardens, London, NW3 4NG | Jul 2022 | £847,000 | Flat / maisonette | Leasehold |
| Flat B Top Maisonette, 6 Belsize Park Gardens, London, NW3 4LD | Jun 2022 | £2,450,000 | Flat / maisonette | Leasehold |
| 81 Belsize Park Gardens, London, NW3 4NJ | May 2022 | £6,250,000 | Other property | Freehold |
| 80B Belsize Park Gardens, London, NW3 4NG | May 2022 | £751,700 | Flat / maisonette | Leasehold |
| Flat 1, 82 Belsize Park Gardens, London, NW3 4NG | Feb 2022 | £740,000 | Flat / maisonette | Leasehold |
| 6 Belsize Park Gardens, London, NW3 4LD | Feb 2022 | £1,600,000 | Flat / maisonette | Leasehold |
| Flat 6, 59 Belsize Park Gardens, London, NW3 4JN | Feb 2022 | £33,500 | Other property | Leasehold |
| 80C Belsize Park Gardens, London, NW3 4NG | Jan 2022 | £975,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 66 Belsize Park Gardens, London, NW3 4NE | Dec 2021 | £1,635,000 | Flat / maisonette | Leasehold |
| Second And Third Floor Flat, 22 Belsize Park Gardens, London, NW3 4LH | Dec 2021 | £2,850,000 | Flat / maisonette | Leasehold |
| 42A Belsize Park Gardens, London, NW3 4LY | Dec 2021 | £1,450,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 74 Belsize Park Gardens, London, NW3 4NG | Nov 2021 | £1,395,000 | Flat / maisonette | Leasehold |
| 49A Belsize Park Gardens, London, NW3 4JL | Oct 2021 | £620,000 | Flat / maisonette | Leasehold |
| 65F Belsize Park Gardens, London, NW3 4JN | Jun 2021 | £620,000 | Flat / maisonette | Leasehold |
| Garden Flat, 75 Belsize Park Gardens, London, NW3 4JP | Jun 2021 | £2,650,000 | Flat / maisonette | Leasehold |
| Flat 5, 14 Belsize Park Gardens, London, NW3 4LD | Jun 2021 | £875,000 | Flat / maisonette | Leasehold |
| Flat 3, 8 Belsize Park Gardens, London, NW3 4LD | Jun 2021 | £790,000 | Flat / maisonette | Leasehold |
| Flat 5, 81A Belsize Park Gardens, London, NW3 4NJ | Jun 2021 | £850,000 | Flat / maisonette | Leasehold |
| Flat D, 80 Belsize Park Gardens, London, NW3 4NG | May 2021 | £380,000 | Flat / maisonette | Leasehold |
| Front Basement Flat, 61 Belsize Park Gardens, London, NW3 4JN | Apr 2021 | £575,000 | Flat / maisonette | Leasehold |
| 26B Belsize Park Gardens, London, NW3 4LH | Apr 2021 | £1,475,000 | Flat / maisonette | Leasehold |
| Flat 2, 16 Belsize Park Gardens, London, NW3 4LD | Apr 2021 | £1,675,000 | Flat / maisonette | Leasehold |
| Flat 4, 59 Belsize Park Gardens, London, NW3 4JN | Mar 2021 | £850,000 | Flat / maisonette | Leasehold |
| Flat 2, 20 Belsize Park Gardens, London, NW3 4LH | Mar 2021 | £1,280,000 | Flat / maisonette | Leasehold |
| 1A Belsize Park Gardens, London, NW3 4LB | Mar 2021 | £1,360,000 | Flat / maisonette | Leasehold |
| Flat 1, 81A Belsize Park Gardens, London, NW3 4NJ | Feb 2021 | £895,000 | Flat / maisonette | Leasehold |
| 49B Belsize Park Gardens, London, NW3 4JL | Feb 2021 | £1,899,950 | Flat / maisonette | Leasehold |
| Flat B, 75 Belsize Park Gardens, London, NW3 4JP | Dec 2020 | £1,920,000 | Flat / maisonette | Leasehold |
| Front First Floor Flat, 5 Belsize Park Gardens, London, NW3 4LB | Sep 2020 | £630,000 | Flat / maisonette | Leasehold |
| Garden Flat, 50 Belsize Park Gardens, London, NW3 4ND | Jun 2020 | £1,700,000 | Flat / maisonette | Leasehold |
| 68B Belsize Park Gardens, London, NW3 4NE | May 2020 | £1,415,000 | Flat / maisonette | Leasehold |
| 7E Belsize Park Gardens, London, NW3 4LB | Feb 2020 | £620,000 | Flat / maisonette | Leasehold |
| Flat 2, 27 Belsize Park Gardens, London, NW3 4JH | Dec 2019 | £1,300,000 | Flat / maisonette | Leasehold |
| 50D Belsize Park Gardens, London, NW3 4ND | Dec 2019 | £695,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 49 Belsize Park Gardens, London, NW3 4JL | Nov 2019 | £1,200,000 | Flat / maisonette | Leasehold |
| Flat 3, 1 Belsize Park Gardens, London, NW3 4LB | Nov 2019 | £1,250,000 | Flat / maisonette | Leasehold |
| Flat 1, 13 Belsize Park Gardens, London, NW3 4JG | Oct 2019 | £1,876,000 | Flat / maisonette | Leasehold |
| 34B Belsize Park Gardens, London, NW3 4LH | Jun 2019 | £1,050,000 | Flat / maisonette | Leasehold |
| 52E Belsize Park Gardens, London, NW3 4ND | Jun 2019 | £390,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 79 Belsize Park Gardens, London, NW3 4JP | May 2019 | £1,450,000 | Flat / maisonette | Leasehold |
| Second And Third Floor Flat, 5 Belsize Park Gardens, London, NW3 4LB | Apr 2019 | £950,000 | Flat / maisonette | Leasehold |
| Lower Ground Floor Flat, 72 Belsize Park Gardens, London, NW3 4NG | Apr 2019 | £975,000 | Flat / maisonette | Leasehold |
| Flat 2, 50 Belsize Park Gardens, London, NW3 4ND | Jan 2019 | £1,340,000 | Flat / maisonette | Leasehold |
| Front Second Floor Flat, 5 Belsize Park Gardens, London, NW3 4LB | Dec 2018 | £522,000 | Flat / maisonette | Leasehold |
| 7B Belsize Park Gardens, London, NW3 4LB | Nov 2018 | £1,200,000 | Flat / maisonette | Leasehold |
| 74A Belsize Park Gardens, London, NW3 4NG | Nov 2018 | £1,580,000 | Flat / maisonette | Leasehold |
| 72A Belsize Park Gardens, London, NW3 4NG | Nov 2018 | £855,000 | Flat / maisonette | Leasehold |
| Second Floor Flat, 32 Belsize Park Gardens, London, NW3 4LH | Aug 2018 | £1,520,000 | Flat / maisonette | Leasehold |
| Second And Third Floor Flat, 19 Belsize Park Gardens, London, NW3 4JG | Aug 2018 | £1,073,500 | Flat / maisonette | Leasehold |
| Third Floor Flat, 51 Belsize Park Gardens, London, NW3 4JL | Aug 2018 | £899,950 | Flat / maisonette | Leasehold |
| Flat 2, 82 Belsize Park Gardens, London, NW3 4NG | Aug 2018 | £795,000 | Flat / maisonette | Leasehold |
| 44A Belsize Park Gardens, London, NW3 4LY | Jun 2018 | £1,250,000 | Flat / maisonette | Leasehold |
| Flat 3, 35 Belsize Park Gardens, London, NW3 4JJ | Jun 2018 | £785,000 | Flat / maisonette | Leasehold |
| Flat 3, 13 Belsize Park Gardens, London, NW3 4JG | May 2018 | £630,000 | Flat / maisonette | Leasehold |
| 10E Belsize Park Gardens, London, NW3 4LD | May 2018 | £1,000,000 | Flat / maisonette | Leasehold |
| Flat 1, 15 Belsize Park Gardens, London, NW3 4JG | May 2018 | £1,560,000 | Flat / maisonette | Leasehold |
| Flat 3, 51 Belsize Park Gardens, London, NW3 4JL | Dec 2017 | £485,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 64 Belsize Park Gardens, London, NW3 4NE | Dec 2017 | £1,500,000 | Flat / maisonette | Leasehold |
| Flat 5, 35 Belsize Park Gardens, London, NW3 4JJ | Nov 2017 | £850,000 | Flat / maisonette | Leasehold |
| 24D Belsize Park Gardens, London, NW3 4JH | Oct 2017 | £1,365,000 | Flat / maisonette | Leasehold |
| Flat 3, 14 Belsize Park Gardens, London, NW3 4LD | Mar 2017 | £940,000 | Flat / maisonette | Leasehold |
| Front Second Floor Flat, 53 Belsize Park Gardens, London, NW3 4JL | Mar 2017 | £710,000 | Flat / maisonette | Leasehold |
| Flat E, 75 Belsize Park Gardens, London, NW3 4JP | Feb 2017 | £1,200,000 | Flat / maisonette | Leasehold |
| Flat D, 75 Belsize Park Gardens, London, NW3 4JP | Jan 2017 | £1,695,000 | Flat / maisonette | Leasehold |
| Flat 4, 82 Belsize Park Gardens, London, NW3 4NG | Dec 2016 | £834,000 | Flat / maisonette | Leasehold |
| Flat C, 75 Belsize Park Gardens, London, NW3 4JP | Dec 2016 | £1,775,000 | Flat / maisonette | Leasehold |
| 2C Belsize Park Gardens, London, NW3 4LD | Nov 2016 | £4,578,750 | Detached | Freehold |
| Flat 4, 47 Belsize Park Gardens, London, NW3 4JL | Oct 2016 | £630,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 62 Belsize Park Gardens, London, NW3 4NE | Oct 2016 | £1,500,000 | Flat / maisonette | Leasehold |
| Flat 1, Avenue House Belsize Park Gardens, London, NW3 4LA | Oct 2016 | £1,300,000 | Flat / maisonette | Leasehold |
| 7C Belsize Park Gardens, London, NW3 4LB | Sep 2016 | £1,700,000 | Flat / maisonette | Leasehold |
| Flat 1, 42 Belsize Park Gardens, London, NW3 4LY | Sep 2016 | £525,000 | Flat / maisonette | Leasehold |
| 85 Belsize Park Gardens, London, NW3 4NJ | Aug 2016 | £5,735,000 | Semi-detached | Freehold |
| Back First Floor Flat, 5 Belsize Park Gardens, London, NW3 4LB | Aug 2016 | £766,000 | Flat / maisonette | Leasehold |
| 24C Belsize Park Gardens, London, NW3 4LH | Jul 2016 | £1,850,000 | Flat / maisonette | Leasehold |
| Flat 9, 20 Belsize Park Gardens, London, NW3 4LH | Jun 2016 | £1,150,000 | Flat / maisonette | Leasehold |
| 2D Belsize Park Gardens, London, NW3 4LD | Jun 2016 | £4,950,000 | Detached | Freehold |
| 75 Belsize Park Gardens, London, NW3 4JP | Apr 2016 | £9,850,000 | Semi-detached | Freehold |
| First Floor Flat, 59 Belsize Park Gardens, London, NW3 4JN | Apr 2016 | £930,000 | Flat / maisonette | Leasehold |
| Flat F, 80 Belsize Park Gardens, London, NW3 4NG | Mar 2016 | £825,000 | Flat / maisonette | Leasehold |
| Flat A, 71 Belsize Park Gardens, London, NW3 4JP | Mar 2016 | £1,570,000 | Flat / maisonette | Leasehold |
| Front First Floor Flat, 59 Belsize Park Gardens, London, NW3 4JN | Mar 2016 | £850,000 | Flat / maisonette | Leasehold |
| Flat 6, 20 Belsize Park Gardens, London, NW3 4LH | Mar 2016 | £670,000 | Flat / maisonette | Leasehold |
| Third Floor Flat, 17 Belsize Park Gardens, London, NW3 4JG | Feb 2016 | £865,500 | Flat / maisonette | Leasehold |
| 50A Belsize Park Gardens, London, NW3 4ND | Dec 2015 | £1,875,000 | Flat / maisonette | Leasehold |
| Flat 2, 1 Belsize Park Gardens, London, NW3 4LB | Oct 2015 | £552,500 | Flat / maisonette | Leasehold |
| Flat 4, 8 Belsize Park Gardens, London, NW3 4LD | Oct 2015 | £730,000 | Flat / maisonette | Leasehold |
| Flat 2, 28 Belsize Park Gardens, London, NW3 4LH | Sep 2015 | £1,295,000 | Flat / maisonette | Leasehold |
| Flat 7, 28 Belsize Park Gardens, London, NW3 4LH | Sep 2015 | £862,500 | Flat / maisonette | Leasehold |
| 23A Belsize Park Gardens, London, NW3 4JH | Sep 2015 | £1,700,000 | Flat / maisonette | Leasehold |
| Flat 1, 28 Belsize Park Gardens, London, NW3 4LH | Jul 2015 | £649,999 | Flat / maisonette | Leasehold |
| Garden Flat, 26 Belsize Park Gardens, London, NW3 4LH | Jun 2015 | £2,460,000 | Flat / maisonette | Leasehold |
| Ground Floor Flat, 53 Belsize Park Gardens, London, NW3 4JL | Mar 2015 | £1,435,000 | Flat / maisonette | Leasehold |
| 62C Belsize Park Gardens, London, NW3 4NE | Mar 2015 | £795,000 | Flat / maisonette | Leasehold |
| Flat 6, 15 Belsize Park Gardens, London, NW3 4JG | Jan 2015 | £1,375,000 | Flat / maisonette | Leasehold |
| Flat 7, 4 Belsize Park Gardens, London, NW3 4LD | Dec 2014 | £850,000 | Flat / maisonette | Leasehold |