Our Data Sources
Flat 8, 423, Blackfen Road, Sidcup has no recent1 records in the Land Registry and a single entry in the EPC database dated October 2019.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate Flat 8, 423, Blackfen Road, Sidcup would be worth £252,508, with a potential rental value of £1,338 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £223,650, with a rental value of £1,185 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 8, 423, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Oct 2019.
The property is not connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).
Sold Prices
Flat 8, 423, Blackfen Road, Sidcup last changed hands on 30th July 1999, selling for £52,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold twice since 1995.
- Sold Jul 1999£52,000
- Sold Apr 1996£37,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 11 sales of comparable properties within 590 metres of Flat 8, 423, Blackfen Road, Sidcup since 2007.
Most recently, Flat 6, 423, Blackfen Road, Sidcup, DA15 9NN, a leasehold flat, sold at £230,000 on the 25th April 2025.
Read more about house prices in DA15.
- Sold Apr 2025£230,000 | 1 Bed FlatFlat 6, 423, Blackfen Road, Sidcup, DA15 9NNFlat 6, 423, Blackfen Road, Sidcup, DA15 9NN
- Sold Sep 2022£222,500 | 1 Bed FlatFlat 1, 423, Blackfen Road, Sidcup, DA15 9NNFlat 1, 423, Blackfen Road, Sidcup, DA15 9NN
- Sold Apr 2022£230,000 | 1 Bed FlatFlat 4, 423, Blackfen Road, Sidcup, DA15 9NNFlat 4, 423, Blackfen Road, Sidcup, DA15 9NN
- Sold Apr 2022£225,000 | 1 Bed FlatFlat 3, 423, Blackfen Road, Sidcup, DA15 9NNFlat 3, 423, Blackfen Road, Sidcup, DA15 9NN
- Sold Mar 2021£225,000 | 1 Bed Flat76, Westerham Drive, Sidcup, DA15 9NR76, Westerham Drive, Sidcup, DA15 9NR
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £370,260, ranging from £220,484 to £735,880.
- Flat 6, 423 Blackfen Road
1 Bed Flat | 0 m | Est. Value: £223,909
- Flat 2, 423 Blackfen Road
2 Bed Flat | 0 m | Est. Value: £287,171
- Flat 3, 423 Blackfen Road
1 Bed Flat | 0 m | Est. Value: £220,484
- Flat 5, 423 Blackfen Road
1 Bed Flat | 0 m | Est. Value: £250,036
- Flat 4, 423 Blackfen Road
1 Bed Flat | 0 m | Est. Value: £220,484
Location Comparison
Our analysis of the public data ranks Flat 8, 423, Blackfen Road, Sidcup as the 400th largest and the 373rd most expensive of the 427 addresses on Blackfen Road, Sidcup, DA15.
Against the DA15 postcode district average, it is £263k less expensive than the typical property.
More reading links
Schools Nearby
- Sherwood Park Primary School300 m away
- Danson Primary School1.0 km away
- Days Lane Primary School1.0 km away
- Blackfen School for Girls100 m away
- Bexley Grammar School900 m away
- Hurstmere School1.2 km away
More reading links
Public Transport Nearby
- Sidcup|1.8 km away
- Albany Park|1.8 km away
- Welling|1.9 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












