3, Union Park has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Jul 2020.

The property is not connected to mains gas and has fully double glazed windows. It is heated using electric underfloor heating.

3, Union Park last changed hands on 20th February 2025, selling for £385,000. 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 5.0% since February 2025.

Land Registry records and our Estate Agent network show 140 sales of comparable properties within 290 metres of 3, Union Park since 2016.

Most recently, Flat 603, 18, Hawthorne Crescent, London, SE10 9GU, a leasehold flat, sold at £432,500 on the 8th April 2026.

Read more about house prices in SE10.

• Sold Apr 2026£432,500 | 2 Bed FlatFlat 603, 18, Hawthorne Crescent, London, SE10 9GUFlat 603, 18, Hawthorne Crescent, London, SE10 9GU
• Sold Oct 2025£93,750 | 2 Bed FlatFlat 103, 16, Hawthorne Crescent, London, SE10 9GTFlat 103, 16, Hawthorne Crescent, London, SE10 9GT
• Sold Sep 2025£91,250 | 2 Bed FlatFlat 24, 11, Lambarde Square, London, SE10 9GFFlat 24, 11, Lambarde Square, London, SE10 9GF
• Sold Sep 2025£395,000 | 2 Bed FlatFlat 404, 18, Hawthorne Crescent, London, SE10 9GUFlat 404, 18, Hawthorne Crescent, London, SE10 9GU
• Sold Aug 2025£435,000 | 2 Bed FlatFlat 3, 11, Lambarde Square, London, SE10 9GFFlat 3, 11, Lambarde Square, London, SE10 9GF
• Sold May 2025£400,000 | 2 Bed FlatFlat 28, Sailacre House, Woolwich Road, London, SE10 0JDFlat 28, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Jun 2024£325,000 | 2 Bed FlatFlat 11, 11, Lambarde Square, London, SE10 9GFFlat 11, 11, Lambarde Square, London, SE10 9GF
• Sold May 2024£425,000 | 2 Bed FlatFlat 404, 14, Hawthorne Crescent, London, SE10 9GSFlat 404, 14, Hawthorne Crescent, London, SE10 9GS
• Sold May 2024£375,300 | 2 Bed FlatFlat 31, 11, Lambarde Square, London, SE10 9GFFlat 31, 11, Lambarde Square, London, SE10 9GF
• Sold Nov 2023£455,000 | 2 Bed FlatFlat 21, 11, Lambarde Square, London, SE10 9GFFlat 21, 11, Lambarde Square, London, SE10 9GF
• Sold Aug 2023£440,000 | 2 Bed FlatFlat 1, 11, Lambarde Square, London, SE10 9GFFlat 1, 11, Lambarde Square, London, SE10 9GF
• Sold Jan 2023£365,000 | 2 Bed FlatFlat 7, 8, Lambarde Square, London, SE10 9GBFlat 7, 8, Lambarde Square, London, SE10 9GB
• Sold Jul 2022£175,000 | 2 Bed FlatFlat 10, 11, Lambarde Square, London, SE10 9GFFlat 10, 11, Lambarde Square, London, SE10 9GF
• Sold Jun 2020£365,000 | 2 Bed FlatFlat 37, Sailacre House, Woolwich Road, London, SE10 0JDFlat 37, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Oct 2018£390,000 | 2 Bed Flat47, Union Park, London, SE10 0JA47, Union Park, London, SE10 0JA
• Sold Jul 2018£142,000 | 2 Bed FlatFlat 20, Sailacre House, Woolwich Road, London, SE10 0JDFlat 20, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Mar 2016£355,000 | 2 Bed FlatFlat 33, Sailacre House, Woolwich Road, London, SE10 0JDFlat 33, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Mar 2016£356,000 | 2 Bed FlatFlat 9, Sailacre House, Woolwich Road, London, SE10 0JDFlat 9, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Mar 2016£350,000 | 2 Bed FlatFlat 25, Sailacre House, Woolwich Road, London, SE10 0JDFlat 25, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Jan 2016£375,000 | 2 Bed FlatFlat 36, Sailacre House, Woolwich Road, London, SE10 0JDFlat 36, Sailacre House, Woolwich Road, London, SE10 0JD

Our analysis of the public data ranks 3, Union Park as the 46th largest and the 46th most expensive of the 56 addresses on Union Park, London, SE10.

Against the SE10 postcode district average, it is £192k less expensive than the typical property.

• Halstow Primary School

  300 m away
• St Joseph's Catholic Primary School

  400 m away
• Christ Church Church of England Primary School

  400 m away

• The John Roan School

  800 m away
• George Green's School

  1.3 km away
• Leigh Academy Blackheath

  1.5 km away

• Westcombe Park

  |

  500 m away
• Maze Hill

  |

  600 m away
• Charlton

  |

  1.4 km away

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