21, Union Park has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Oct 2015.

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

21, Union Park last changed hands on 25th May 2016, selling for £490,150. 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 5.8% since May 2016.

Land Registry records and our Estate Agent network show 140 sales of comparable properties within 290 metres of 21, Union Park since 2016.

Most recently, Flat 202, 14, Hawthorne Crescent, London, SE10 9GS, a leasehold flat, sold at £455,000 on the 22nd May 2026.

Read more about house prices in SE10.

• Sold May 2026£455,000 | 2 Bed FlatFlat 202, 14, Hawthorne Crescent, London, SE10 9GSFlat 202, 14, Hawthorne Crescent, London, SE10 9GS
• Sold Apr 2026£380,000 | 3 Bed FlatApartment 12, Blue Building 115, Woolwich Road, London, SE10 0RFApartment 12, Blue Building 115, Woolwich Road, London, SE10 0RF
• Sold Jan 2025£565,000 | 2 Bed FlatFlat 306, 16, Hawthorne Crescent, London, SE10 9GTFlat 306, 16, Hawthorne Crescent, London, SE10 9GT
• Sold Aug 2023£500,000 | 3 Bed FlatFlat 12, 9, Hazel Lane, London, SE10 9FZFlat 12, 9, Hazel Lane, London, SE10 9FZ
• Sold Jan 2023£495,000 | 2 Bed FlatFlat 19, 4, Lambarde Square, London, SE10 9GBFlat 19, 4, Lambarde Square, London, SE10 9GB
• Sold Nov 2022£517,500 | 2 Bed FlatFlat 43, 4, Lambarde Square, London, SE10 9GBFlat 43, 4, Lambarde Square, London, SE10 9GB
• Sold Aug 2022£500,000 | 3 Bed FlatFlat 36, 9, Hazel Lane, London, SE10 9FZFlat 36, 9, Hazel Lane, London, SE10 9FZ
• Sold Jul 2022£118,750 | 2 Bed FlatFlat 6, 8, Lambarde Square, London, SE10 9GBFlat 6, 8, Lambarde Square, London, SE10 9GB
• Sold May 2022£482,500 | 2 Bed FlatFlat 27, 9, Hazel Lane, London, SE10 9FZFlat 27, 9, Hazel Lane, London, SE10 9FZ
• Sold Apr 2022£520,000 | 3 Bed FlatFlat 18, 9, Hazel Lane, London, SE10 9FZFlat 18, 9, Hazel Lane, London, SE10 9FZ
• Sold Jan 2022£492,000 | 2 Bed FlatFlat 35, 4, Lambarde Square, London, SE10 9GBFlat 35, 4, Lambarde Square, London, SE10 9GB
• Sold Dec 2021£487,000 | 3 Bed Flat39, Union Park, London, SE10 0JA39, Union Park, London, SE10 0JA
• Sold Oct 2021£445,000 | 2 Bed Flat110, Calvert Road, London, SE10 0DF110, Calvert Road, London, SE10 0DF
• Sold Oct 2020£450,000 | 2 Bed Flat22, Union Park, London, SE10 0JA22, Union Park, London, SE10 0JA
• Sold Dec 2019£435,000 | 2 Bed Flat9, Union Park, London, SE10 0JA9, Union Park, London, SE10 0JA
• Sold Aug 2018£449,999 | 2 Bed Flat24, Union Park, London, SE10 0JA24, Union Park, London, SE10 0JA
• Sold May 2018£470,000 | 3 Bed Flat29, Union Park, London, SE10 0JA29, Union Park, London, SE10 0JA
• Sold Dec 2017£450,000 | 2 Bed Flat34, Union Park, London, SE10 0JA34, Union Park, London, SE10 0JA
• Sold Apr 2016£425,000 | 2 Bed FlatFlat 29, Sailacre House, Woolwich Road, London, SE10 0JDFlat 29, Sailacre House, Woolwich Road, London, SE10 0JD
• Sold Apr 2016£422,500 | 2 Bed FlatFlat 13, Sailacre House, Woolwich Road, London, SE10 0JDFlat 13, Sailacre House, Woolwich Road, London, SE10 0JD

Our analysis of the public data ranks 21, Union Park as the 17th largest and the 17th most expensive of the 56 addresses on Union Park, London, SE10.

Against the SE10 postcode district average, it is £127k 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.