Our Data Sources
401, Blackfen Road, Sidcup has no recent1 records in the Land Registry and a single entry in the EPC database dated December 2023.
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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 401, Blackfen Road, Sidcup is in very good condition we estimate a sale value of £486,868 and a rental value of £2,378 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £431,226 and a rental value of £2,106 per month.
Plot Size
According to data from HM Land Registry, 401, Blackfen Road, Sidcup sits on a plot of 177 m2.
We have plot size data on 30 out of 32 other houses in the postcode and 401, Blackfen Road, Sidcup sits on the 28th largest plot.
Energy Efficiency
401, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 Dec 2023.
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
According to HM Land Registry, 401, Blackfen Road, Sidcup was last sold on 1st December 2004 for £239,950 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Dec 2004£239,950
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 263 sales of properties similar to 401, Blackfen Road, Sidcup within a radius of 570 metres since 2017.
The most recent example is 1, Clayworth Close, Sidcup, DA15 9HJ, a freehold house which sold for £435,000 on the 19th December 2025.
Read more about house prices in DA15.
- Sold Dec 2025£435,000 | 3 Bed House1, Clayworth Close, Sidcup, DA15 9HJ1, Clayworth Close, Sidcup, DA15 9HJ
- 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 Jun 2025£450,000 | 3 Bed House96, Westerham Drive, Sidcup, DA15 9NS96, Westerham Drive, Sidcup, DA15 9NS
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 £505,760, ranging from £461,000 to £590,758.
- 403 Blackfen Road
4 Bed House | 10 m | Est. Value: £537,764
- 397 Blackfen Road
4 Bed House | 13 m | Est. Value: £494,739
- 395A Blackfen Road
3 Bed House | 20 m | Est. Value: £463,684
- 395 Blackfen Road
3 Bed House | 25 m | Est. Value: £471,196
- 18 Overcourt Close
3 Bed House | 29 m | Est. Value: £497,518
Location Comparison
Blackfen Road, Sidcup, DA15 has a total of 427 addresses. According to our analysis of all the public data, 401, Blackfen Road, Sidcup is the 135th largest and the 169th most expensive property on the street.
When compared to the postcode district it is £40k less expensive than the average property in DA15.
More reading links
Schools Nearby
- Sherwood Park Primary School400 m away
- Days Lane Primary School800 m away
- Danson Primary School800 m away
- Blackfen School for Girls200 m away
- Bexley Grammar School700 m away
- Hurstmere School1.3 km away
More reading links
Public Transport Nearby
- Welling|1.7 km away
- Sidcup|1.8 km away
- Albany Park|2.0 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












