20, Seaton Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Mar 2021.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 20, Seaton Square completed on 29th June 2021 at £420,000 and was recorded by HM Land Registry as a leasehold flat.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 11.3% over the period since June 2021.

• Sold Jun 2021£420,000
• Sold Oct 2002£210,000

Since 2017 244 properties similar to 20, Seaton Square have sold within a radius of 520 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 12th February 2026, was 16, Seaton Square, London, NW7 1GB, a leasehold flat which sold for £347,500.

Read more about house prices in NW7.

• Sold Feb 2026£347,500 | 2 Bed Flat16, Seaton Square, London, NW7 1GB16, Seaton Square, London, NW7 1GB
• Sold Oct 2025£285,000 | 2 Bed FlatFlat 45, Farthing Court 33, Langstone Way, London, NW7 1GQFlat 45, Farthing Court 33, Langstone Way, London, NW7 1GQ
• Sold Aug 2025£295,000 | 2 Bed FlatFlat 1, Farthing Court 33, Langstone Way, London, NW7 1GQFlat 1, Farthing Court 33, Langstone Way, London, NW7 1GQ
• Sold Apr 2025£385,500 | 2 Bed Flat14, Seaton Square, London, NW7 1GB14, Seaton Square, London, NW7 1GB
• Sold Mar 2025£448,000 | 2 Bed Flat5, Seaton Square, London, NW7 1GB5, Seaton Square, London, NW7 1GB
• Sold Feb 2025£350,000 | 2 Bed Flat14, Thornbury Close, London, NW7 1HH14, Thornbury Close, London, NW7 1HH
• Sold Sep 2024£325,000 | 2 Bed FlatFlat 18, Farthing Court 33, Langstone Way, London, NW7 1GQFlat 18, Farthing Court 33, Langstone Way, London, NW7 1GQ
• Sold Sep 2024£385,000 | 2 Bed FlatFlat 21, Paveley Court 30, Langstone Way, London, NW7 1GRFlat 21, Paveley Court 30, Langstone Way, London, NW7 1GR
• Sold Feb 2024£400,000 | 2 Bed Flat9, Shillingford Close, London, NW7 1HQ9, Shillingford Close, London, NW7 1HQ
• Sold Oct 2023£395,000 | 2 Bed Flat46, Shillingford Close, London, NW7 1HQ46, Shillingford Close, London, NW7 1HQ
• Sold Jul 2023£395,000 | 2 Bed Flat29, Shillingford Close, London, NW7 1HQ29, Shillingford Close, London, NW7 1HQ
• Sold Apr 2023£400,000 | 2 Bed FlatFlat 30, Paveley Court 30, Langstone Way, London, NW7 1GRFlat 30, Paveley Court 30, Langstone Way, London, NW7 1GR
• Sold Feb 2022£360,000 | 2 Bed Flat9, Seaton Square, London, NW7 1GB9, Seaton Square, London, NW7 1GB
• Sold Apr 2021£400,000 | 2 Bed Flat40, Shillingford Close, London, NW7 1HQ40, Shillingford Close, London, NW7 1HQ
• Sold Apr 2021£376,000 | 2 Bed Flat32, Shillingford Close, London, NW7 1HQ32, Shillingford Close, London, NW7 1HQ
• Sold Mar 2021£400,000 | 2 Bed Flat38, Shillingford Close, London, NW7 1HQ38, Shillingford Close, London, NW7 1HQ
• Sold Mar 2020£330,000 | 2 Bed Flat25, Shillingford Close, London, NW7 1HQ25, Shillingford Close, London, NW7 1HQ
• Sold Jul 2019£375,000 | 2 Bed Flat20, Shillingford Close, London, NW7 1HQ20, Shillingford Close, London, NW7 1HQ
• Sold May 2019£364,000 | 2 Bed Flat12, Seaton Square, London, NW7 1GB12, Seaton Square, London, NW7 1GB
• Sold Mar 2017£378,000 | 2 Bed Flat7, Seaton Square, London, NW7 1GB7, Seaton Square, London, NW7 1GB

Of the 20 addresses on Seaton Square, London, NW7, 20, Seaton Square comes out as the 13th largest and the 13th most expensive in our analysis of the public data.

It is also £349k less expensive than the average property across the NW7 district.

• Millbrook Park Primary School

  700 m away
• Dollis Primary School

  700 m away
• St Mary's CofE Primary School

  1.1 km away

• Hasmonean High School for Boys

  1.2 km away
• Copthall School

  1.2 km away
• Hasmonean High School for Girls

  1.3 km away

• Mill Hill East

  |

  400 m away
• Finchley Central

  |

  1.7 km away
• West Finchley

  |

  1.8 km away

The flood risk here is rated Very Low, based on Environment Agency data.