Our Data Sources
355, Blackfen Road, Sidcup has 31 entries in the Land Registry, most recently in November 2018 and a single entry in the EPC database dated June 2026.
We combine this information with that 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 355, Blackfen Road, Sidcup would be worth £490,173, with a potential rental value of £2,402 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £434,154, with a rental value of £2,128 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
355, Blackfen Road, Sidcup occupies a 381 m2 plot as recorded by HM Land Registry.
Of the 32 other houses in this postcode, 30 have recorded plot sizes, and this one ranks as the 17th largest.
Energy Efficiency
355, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Jun 2026.
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
355, Blackfen Road, Sidcup last changed hands on 12th November 2018, selling for £372,500. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 29.8% since November 2018.
- Sold Nov 2018£372,500
- Sold Aug 2013£225,000
- Sold May 1995£78,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 290 sales of comparable properties within 500 metres of 355, Blackfen Road, Sidcup since 2020.
Most recently, 98, Tyrrell Avenue, Welling, DA16 2BU, a freehold house, sold at £445,000 on the 2nd April 2026.
Read more about house prices in DA15.
- Sold Apr 2026£445,000 | 3 Bed House98, Tyrrell Avenue, Welling, DA16 2BU98, Tyrrell Avenue, Welling, DA16 2BU
- Sold Jan 2026£515,000 | 3 Bed House9, Portland Avenue, Sidcup, DA15 9HA9, Portland Avenue, Sidcup, DA15 9HA
- 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 £455,852, ranging from £337,799 to £698,116.
- 353 Blackfen Road
4 Bed House | 6 m | Est. Value: £520,770
- 351 Blackfen Road
5 Bed House | 15 m | Est. Value: £698,116
- 359 Blackfen Road
3 Bed House | 20 m | Est. Value: £487,154
- 347 Blackfen Road
4 Bed House | 36 m | Est. Value: £530,658
- 342 Blackfen Road
4 Bed House | 45 m | Est. Value: £426,410
Location Comparison
Our analysis of the public data ranks 355, Blackfen Road, Sidcup as the 143rd largest and the 160th most expensive of the 427 addresses on Blackfen Road, Sidcup, DA15.
Against the DA15 postcode district average, it is £37k less expensive than the typical property.
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
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
