HM Land Registry records the plot of land for 171, Blackfen Road, Sidcup as measuring 306 m².

That makes it the 14th largest plot in the postcode, where all 14 other houses have recorded plot data.

171, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 24 Mar 2016.

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 171, Blackfen Road, Sidcup completed on 23rd September 2016 at £366,500 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 22.9% over the period since September 2016.

• Sold Sep 2016£366,500
• Sold Sep 1996£60,000

Since 2020 387 properties similar to 171, Blackfen Road, Sidcup have sold within a radius of 480 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 26th February 2026, was 167, Sutherland Avenue, Welling, DA16 2NW, a freehold house which sold for £465,000.

Read more about house prices in DA15.

• Sold Feb 2026£465,000 | 3 Bed House167, Sutherland Avenue, Welling, DA16 2NW167, Sutherland Avenue, Welling, DA16 2NW
• Sold Jan 2026£575,000 | 3 Bed House20, Leechcroft Avenue, Sidcup, DA15 8RS20, Leechcroft Avenue, Sidcup, DA15 8RS
• Sold Nov 2025£405,000 | 3 Bed House135, Blackfen Road, Sidcup, DA15 8PZ135, Blackfen Road, Sidcup, DA15 8PZ
• Sold Oct 2025£485,000 | 3 Bed House7, Leechcroft Avenue, Sidcup, DA15 8RR7, Leechcroft Avenue, Sidcup, DA15 8RR
• Sold Sep 2025£470,000 | 3 Bed House56, Orchard Rise East, Sidcup, DA15 8RT56, Orchard Rise East, Sidcup, DA15 8RT
• Sold Apr 2025£379,000 | 3 Bed House6, Ridgeway East, Sidcup, DA15 8RZ6, Ridgeway East, Sidcup, DA15 8RZ
• Sold Mar 2025£490,000 | 3 Bed House10, Leechcroft Avenue, Sidcup, DA15 8RS10, Leechcroft Avenue, Sidcup, DA15 8RS
• Sold Dec 2024£450,000 | 3 Bed House8, Burleigh Avenue, Sidcup, DA15 8QA8, Burleigh Avenue, Sidcup, DA15 8QA
• Sold Mar 2024£435,000 | 3 Bed House104, Lyndon Avenue, Sidcup, DA15 8RN104, Lyndon Avenue, Sidcup, DA15 8RN
• Sold Dec 2023£415,000 | 3 Bed House22, Fairfield Close, Sidcup, DA15 8QS22, Fairfield Close, Sidcup, DA15 8QS
• Sold Nov 2023£375,000 | 3 Bed House95, Lyndon Avenue, Sidcup, DA15 8RW95, Lyndon Avenue, Sidcup, DA15 8RW
• Sold Oct 2023£432,000 | 3 Bed House20, Orchard Rise East, Sidcup, DA15 8RT20, Orchard Rise East, Sidcup, DA15 8RT
• Sold Oct 2023£423,000 | 3 Bed House12, Sycamore Avenue, Sidcup, DA15 8PL12, Sycamore Avenue, Sidcup, DA15 8PL
• Sold Sep 2023£490,000 | 3 Bed House181, Blackfen Road, Sidcup, DA15 8PY181, Blackfen Road, Sidcup, DA15 8PY
• Sold Apr 2023£483,000 | 3 Bed House21, Orchard Rise East, Sidcup, DA15 8RU21, Orchard Rise East, Sidcup, DA15 8RU
• Sold Dec 2022£475,000 | 3 Bed House17, Sycamore Avenue, Sidcup, DA15 8PL17, Sycamore Avenue, Sidcup, DA15 8PL
• Sold Sep 2022£430,000 | 3 Bed House37, Orchard Rise East, Sidcup, DA15 8RU37, Orchard Rise East, Sidcup, DA15 8RU
• Sold Jun 2021£390,000 | 3 Bed House129, Lyndon Avenue, Sidcup, DA15 8RW129, Lyndon Avenue, Sidcup, DA15 8RW
• Sold Mar 2021£432,500 | 3 Bed House15, Leechcroft Avenue, Sidcup, DA15 8RR15, Leechcroft Avenue, Sidcup, DA15 8RR
• Sold Jun 2020£475,000 | 3 Bed House169, Blackfen Road, Sidcup, DA15 8PY169, Blackfen Road, Sidcup, DA15 8PY

Of the 427 addresses on Blackfen Road, Sidcup, DA15, 171, Blackfen Road, Sidcup comes out as the 176th largest and the 143rd most expensive in our analysis of the public data.

It is also £34k less expensive than the average property across the DA15 district.

• Days Lane Primary School

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

  600 m away
• Alderwood Primary School

  800 m away

• Bexley Grammar School

  900 m away
• Harris Academy Falconwood

  900 m away
• Blackfen School for Girls

  1.1 km away

• Welling

  |

  1.5 km away
• Falconwood

  |

  1.5 km away
• Sidcup

  |

  1.9 km away

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