3, Onyx Mews has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Nov 2020.

The property is not connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).

3, Onyx Mews last changed hands on 26th August 2022, selling for £300,000. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 10.7% since August 2022.

• Sold Aug 2022£300,000
• Sold Dec 2003£260,000

Land Registry records and our Estate Agent network show 58 sales of comparable properties within 310 metres of 3, Onyx Mews since 2011.

Most recently, Flat 52, The Quadrangle House 84, Romford Road, London, E15 4EJ, a leasehold flat, sold at £320,000 on the 21st November 2025.

Read more about house prices in E15.

• Sold Nov 2025£320,000 | 2 Bed FlatFlat 52, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 52, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Nov 2025£285,000 | 3 Bed Flat8, Onyx Mews, London, E15 4HU8, Onyx Mews, London, E15 4HU
• Sold Dec 2024£370,000 | 2 Bed FlatFlat 28, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 28, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Oct 2024£300,000 | 2 Bed FlatFlat 7, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 7, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold May 2024£310,000 | 2 Bed FlatFlat 54, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 54, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Jul 2023£275,000 | 2 Bed Flat6, Onyx Mews, London, E15 4HU6, Onyx Mews, London, E15 4HU
• Sold Jun 2023£318,000 | 2 Bed FlatFlat 51, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 51, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Dec 2022£332,000 | 2 Bed FlatFlat 49, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 49, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Dec 2022£370,000 | 2 Bed FlatFlat 18, 10, Maitland Road, London, E15 4GHFlat 18, 10, Maitland Road, London, E15 4GH
• Sold Jul 2022£410,000 | 3 Bed FlatFlat 21, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 21, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Aug 2021£335,000 | 3 Bed Flat12, Onyx Mews, London, E15 4HU12, Onyx Mews, London, E15 4HU
• Sold Jun 2021£325,000 | 2 Bed Flat2, Onyx Mews, London, E15 4HU2, Onyx Mews, London, E15 4HU
• Sold Apr 2020£395,000 | 3 Bed Flat4, Onyx Mews, London, E15 4HU4, Onyx Mews, London, E15 4HU
• Sold Oct 2017£375,000 | 3 Bed FlatFlat 65, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 65, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold May 2017£420,000 | 2 Bed FlatFlat 27, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 27, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Jan 2017£420,000 | 2 Bed FlatFlat 67, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 67, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Mar 2015£352,500 | 2 Bed FlatFlat 4, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 4, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Aug 2014£341,500 | 3 Bed FlatFlat 44, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 44, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold May 2014£320,000 | 2 Bed FlatFlat 46, The Quadrangle House 84, Romford Road, London, E15 4EJFlat 46, The Quadrangle House 84, Romford Road, London, E15 4EJ
• Sold Oct 2011£280,000 | 3 Bed Flat11, Onyx Mews, London, E15 4HU11, Onyx Mews, London, E15 4HU

Our analysis of the public data ranks 3, Onyx Mews as the 5th largest and the 5th most expensive of the 15 addresses on Onyx Mews, London, E15.

Against the E15 postcode district average, it is £108k less expensive than the typical property.

• Park Primary School

  400 m away
• West Ham Church Primary School

  600 m away
• St Francis' Catholic Primary School

  600 m away

• Sarah Bonnell School

  200 m away
• Stratford School Academy

  1.0 km away
• St Bonaventure's RC School

  1.1 km away

• Maryland

  |

  400 m away
• Stratford

  |

  800 m away

Environment Agency data suggests this area has a Very Low risk of flooding.