Our Data Sources
342, Blackfen Road, Sidcup has a single entry in the Land Registry from October 2025 and a single entry in the EPC database dated October 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 342, Blackfen Road, Sidcup would be worth £447,730, with a potential rental value of £2,229 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £396,561, with a rental value of £1,974 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
342, Blackfen Road, Sidcup occupies a 366 m2 plot as recorded by HM Land Registry.
All 28 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.
Energy Efficiency
342, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 25 Oct 2021.
The property is not connected to mains gas and has fully double glazed windows. It is heated using electric storage heaters.
Sold Prices
342, Blackfen Road, Sidcup last changed hands on 31st October 2025, selling for £354,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 10.4% since October 2025.
- Sold Oct 2025£354,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 104 sales of comparable properties within 490 metres of 342, Blackfen Road, Sidcup since 2015.
Most recently, 9, Portland Avenue, Sidcup, DA15 9HA, a freehold house, sold at £515,000 on the 21st January 2026.
Read more about house prices in DA15.
- Sold Jan 2026£515,000 | 3 Bed House9, Portland Avenue, Sidcup, DA15 9HA9, Portland Avenue, Sidcup, DA15 9HA
- 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£465,000 | 4 Bed House13, Rochester Close, Sidcup, DA15 9PG13, Rochester Close, Sidcup, DA15 9PG
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 £427,139, ranging from £337,799 to £520,770.
- 340 Blackfen Road
4 Bed House | 8 m | Est. Value: £442,519
- 338 Blackfen Road
3 Bed House | 14 m | Est. Value: £454,453
- 336 Blackfen Road
3 Bed House | 19 m | Est. Value: £420,215
- 348 Blackfen Road
3 Bed House | 21 m | Est. Value: £454,453
- 334 Blackfen Road
3 Bed House | 24 m | Est. Value: £425,672
Location Comparison
Our analysis of the public data ranks 342, Blackfen Road, Sidcup as the 98th largest and the 227th most expensive of the 427 addresses on Blackfen Road, Sidcup, DA15.
Against the DA15 postcode district average, it is £77k less expensive than the typical property.
More reading links
Schools Nearby
- Sherwood Park Primary School400 m away
- Days Lane Primary School700 m away
- Danson Primary School900 m away
- Blackfen School for Girls300 m away
- Bexley Grammar School800 m away
- Hurstmere School1.3 km away
More reading links
Public Transport Nearby
- Sidcup|1.7 km away
- Welling|1.7 km away
- Albany Park|2.0 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.
