Our Data Sources
405B, Blackfen Road, Sidcup has 21 entries in the Land Registry, most recently in January 2025 and a single entry in the EPC database dated July 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 405B, Blackfen Road, Sidcup would be worth £516,606, with a potential rental value of £2,546 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £457,565, with a rental value of £2,255 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
405B, Blackfen Road, Sidcup occupies a 253 m2 plot as recorded by HM Land Registry.
Of the 17 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 14th largest.
Energy Efficiency
405B, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Jul 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
405B, Blackfen Road, Sidcup last changed hands on 30th January 2025, selling for £470,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 14.1% since January 2025.
- Sold Jan 2025£470,000
- Sold May 1998£93,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 188 sales of comparable properties within 580 metres of 405B, Blackfen Road, Sidcup since 2019.
Most recently, 59, Park Mead, Sidcup, DA15 9PJ, a freehold house, sold at £450,000 on the 14th November 2025.
Read more about house prices in DA15.
- Sold Nov 2025£450,000 | 3 Bed House59, Park Mead, Sidcup, DA15 9PJ59, Park Mead, Sidcup, DA15 9PJ
- Sold Oct 2025£450,000 | 3 Bed House30, Wellan Close, Sidcup, DA15 9PN30, Wellan Close, Sidcup, DA15 9PN
- Sold Jul 2025£455,000 | 3 Bed House405, Blackfen Road, Sidcup, DA15 9NN405, Blackfen Road, Sidcup, DA15 9NN
- Sold Mar 2025£505,000 | 3 Bed House71, Sherwood Park Avenue, Sidcup, DA15 9HU71, Sherwood Park Avenue, Sidcup, DA15 9HU
- Sold Mar 2025£475,000 | 3 Bed House395A, Blackfen Road, Sidcup, DA15 9NJ395A, Blackfen Road, Sidcup, DA15 9NJ
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 £453,022, ranging from £366,119 to £582,997.
- 409A Blackfen Road
4 Bed House | 11 m | Est. Value: £582,997
- 405 Blackfen Road
3 Bed House | 12 m | Est. Value: £467,911
- 403 Blackfen Road
4 Bed House | 31 m | Est. Value: £537,764
- 3 Cobham Close
3 Bed House | 31 m | Est. Value: £389,741
- 5 Cobham Close
3 Bed House | 33 m | Est. Value: £392,772
Location Comparison
Our analysis of the public data ranks 405B, Blackfen Road, Sidcup as the 94th largest and the 123rd most expensive of the 427 addresses on Blackfen Road, Sidcup, DA15.
Against the DA15 postcode district average, it is £12k 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.
