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423, Blackfen Road, Sidcup, DA15 9NN
Home, House Prices, Blackfen Road, Bexley, London
423, Blackfen Road

423, Blackfen Road - DA15 9NN

Last updated Aug 2026

Key Building Insights

423, Blackfen Road is a residential building situated on Blackfen Road, Sidcup, DA15 with 8 addresses.

It ranks as the 208th largest and 32nd most expensive of the 255 buildings in the DA15 area. The most common property type is a modern flat built after 1980.

The building contains a total of 8 properties: 7 flats and 1 other property.

Ave. Sale Price
£239,136
10 Year change
up 8.6%
Ave. Rental Price
£1,273pcm
10 Year change
up 41.0%
Ave. £ per ft²
£547/ft²
Ave. Gross Yield
6.4%/year/yr
All figures are subject to T&Cs
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Sales Market Trends

The last sale in 423, Blackfen Road sold for £230,000 on 25th April 2025. Since then prices are down an average of 0.9%.

The current average value in the building is £239,136.
The 423, Blackfen Road Sales Market has increased by 8.6% over the last 10 years.

PeriodYear on YearAverage Price
June 2026-1.1%£239,136
June 20250.2%£241,754
June 2024-0.2%£241,208
June 2023-0.7%£241,617
June 20224.7%£243,396
June 20212.3%£232,426
June 20203%£227,252
June 2019-2.3%£220,574
June 2018-0.5%£225,689
June 20173%£226,890
June 201615.3%£220,249
June 201513.1%£191,105
June 201411.8%£169,024
June 20133.3%£151,156
June 20120.7%£146,362
June 2011-0.8%£145,287
June 20105.4%£146,521
June 2009-12.7%£139,047
June 20081.3%£159,349
June 20070%£157,374
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Rental Market Trends

The current average rental value in the building is £1,273.
The 423, Blackfen Road Rental Market has increased by 41.0% over the last 10 years.

PeriodYear on YearAverage Price
June 20263.5%£1,273pcm
June 20252.6%£1,229pcm
June 20248.2%£1,198pcm
June 20239.3%£1,108pcm
June 20226.9%£1,014pcm
June 20213.1%£948pcm
June 20202.7%£920pcm
June 20190.5%£895pcm
June 20180.6%£891pcm
June 2017-1.9%£886pcm
June 20166.9%£903pcm
June 20157.3%£844pcm
June 20144.7%£787pcm
June 20132.1%£751pcm
June 20123.9%£736pcm
June 20113.2%£708pcm
June 20100.4%£686pcm
June 2009-3.1%£684pcm
June 20085.9%£706pcm
June 20070%£666pcm
properties list title title

Sales History

The last recorded sale was on 25th April 2025 for £230,000 and since then the market in the area has decreased by 0.9%.

423, Blackfen Road, Sidcup, DA15 9NN has had 3 sales since 1995, with 1 in the last three years and none in the last twelve months.

properties list title title

Property Types

  • 6 modern flats built after 1980
  • 1 flat of an unknown age
  • 1 other address of unknown type
  • modern flat (6)
  • flat (1)
  • Unknown (1)
Energy Efficiency

Energy Efficiency

  • Energy Performance Certificate (EPC) surveys have been conducted for 6 properties.
  • The most common rating is C.
  • A (0)
  • E (0)
  • B (1)
  • F (0)
  • C (3)
  • G (0)
  • D (2)
  • No EPC (2)
properties list title title

Top 3 Most Expensive Sales

Schools Nearby

Schools Nearby

The nearest primary school to 423, Blackfen Road, Sidcup, DA15 9NN is Sherwood Park Primary School, which is 300 metres away.
  • Sherwood Park Primary School
    300 m away
  • Danson Primary School
    1.0 km away
  • Days Lane Primary School
    1.0 km away
The nearest secondary school is Blackfen School for Girls, which is 100 metres away.
  • Blackfen School for Girls
    100 m away
  • Bexley Grammar School
    900 m away
  • Hurstmere School
    1.2 km away
More reading links
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Schools and house prices
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearby

The closest station to 423, Blackfen Road, Sidcup, DA15 9NN is Sidcup station, which is 1.8 kilometres away.

  • Sidcup
    |
    1.8 km away
  • Albany Park
    |
    1.8 km away
  • Welling
    |
    1.9 km away
  • Bexleyheath
    |
    2.1 km away
Source: National Rail
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