HM Land Registry records the plot of land for 51, Blackfen Road, Sidcup as measuring 762 m².

That makes it the 3rd largest plot in the postcode, where all 11 other houses have recorded plot data.

51, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Mar 2025.

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 51, Blackfen Road, Sidcup completed on 11th December 2009 at £320,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 118.4% over the period since December 2009.

• Sold Dec 2009£320,000

Since 2019 72 properties similar to 51, Blackfen Road, Sidcup have sold within a radius of 490 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 19th September 2025, was 27, Rennets Close, London, SE9 2NQ, a freehold house which sold for £630,000.

Read more about house prices in DA15.

• Sold Sep 2025£630,000 | 4 Bed House27, Rennets Close, London, SE9 2NQ27, Rennets Close, London, SE9 2NQ
• Sold Aug 2025£665,000 | 4 Bed House15, Rennets Close, London, SE9 2NQ15, Rennets Close, London, SE9 2NQ
• Sold Jul 2025£585,000 | 4 Bed House85, Raeburn Road, Sidcup, DA15 8RE85, Raeburn Road, Sidcup, DA15 8RE
• Sold May 2025£618,000 | 4 Bed House97, Raeburn Road, Sidcup, DA15 8RE97, Raeburn Road, Sidcup, DA15 8RE
• Sold Mar 2025£600,000 | 4 Bed House93, Raeburn Road, Sidcup, DA15 8RE93, Raeburn Road, Sidcup, DA15 8RE
• Sold Jun 2024£688,000 | 4 Bed House29, Rennets Wood Road, London, SE9 2NF29, Rennets Wood Road, London, SE9 2NF
• Sold May 2024£700,000 | 4 Bed House26, Rennets Wood Road, London, SE9 2ND26, Rennets Wood Road, London, SE9 2ND
• Sold Oct 2022£600,000 | 4 Bed House92B, Blackfen Road, Sidcup, DA15 8SW92B, Blackfen Road, Sidcup, DA15 8SW
• Sold Oct 2022£645,000 | 4 Bed House33, Rennets Wood Road, London, SE9 2NF33, Rennets Wood Road, London, SE9 2NF
• Sold Sep 2022£578,500 | 3 Bed House225, Bexley Road, London, SE9 2PN225, Bexley Road, London, SE9 2PN
• Sold Jul 2022£855,000 | 4 Bed House7, Packmores Road, London, SE9 2NB7, Packmores Road, London, SE9 2NB
• Sold Jul 2022£725,000 | 4 Bed House1, Rennets Wood Road, London, SE9 2NF1, Rennets Wood Road, London, SE9 2NF
• Sold Dec 2021£650,000 | 4 Bed House71, Boundary Road, Sidcup, DA15 8SS71, Boundary Road, Sidcup, DA15 8SS
• Sold Sep 2021£613,000 | 4 Bed House37, Packmores Road, London, SE9 2NB37, Packmores Road, London, SE9 2NB
• Sold Sep 2021£730,000 | 4 Bed House39, Packmores Road, London, SE9 2NB39, Packmores Road, London, SE9 2NB
• Sold Jun 2021£525,000 | 4 Bed House6, Fen Grove, Sidcup, DA15 8QN6, Fen Grove, Sidcup, DA15 8QN
• Sold Mar 2021£625,000 | 3 Bed House50, Rennets Wood Road, London, SE9 2ND50, Rennets Wood Road, London, SE9 2ND
• Sold Mar 2021£625,000 | 4 Bed House21, Rennets Wood Road, London, SE9 2NF21, Rennets Wood Road, London, SE9 2NF
• Sold Nov 2019£664,000 | 4 Bed House30, Rennets Wood Road, London, SE9 2ND30, Rennets Wood Road, London, SE9 2ND
• Sold Mar 2019£530,000 | 4 Bed House16, Rennets Wood Road, London, SE9 2ND16, Rennets Wood Road, London, SE9 2ND

Of the 427 addresses on Blackfen Road, Sidcup, DA15, 51, Blackfen Road, Sidcup comes out as the 67th largest and the 28th most expensive in our analysis of the public data.

It is also £179k more expensive than the average property across the DA15 district.

• Alderwood Primary School

  400 m away
• Our Lady of the Rosary Catholic Primary School

  500 m away
• Days Lane Primary School

  800 m away

• Harris Academy Falconwood

  700 m away
• Leigh Stationers' Academy

  900 m away
• Bexley Grammar School

  1.4 km away

• Falconwood

  |

  1.1 km away
• Welling

  |

  1.7 km away
• New Eltham

  |

  2.0 km away

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