Our Data Sources
143, Blackfen Road, Sidcup has a single entry in the Land Registry from September 2019 and a single entry in the EPC database dated September 2018.
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.
Price Range & Condition
In very good condition, we estimate 143, Blackfen Road, Sidcup would be worth £477,730, with a potential rental value of £2,248 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £423,132, with a rental value of £1,991 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
143, Blackfen Road, Sidcup occupies a 314 m2 plot as recorded by HM Land Registry.
Of the 39 other houses in this postcode, 35 have recorded plot sizes, and this one ranks as the 21st largest.
Energy Efficiency
143, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 10 Sep 2018.
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
143, Blackfen Road, Sidcup last changed hands on 16th September 2019, selling for £362,000. 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 24.2% since September 2019.
- Sold Sep 2019£362,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 410 sales of comparable properties within 480 metres of 143, Blackfen Road, Sidcup since 2020.
Most recently, 9, Chester Road, Sidcup, DA15 8SA, a freehold house, sold at £505,000 on the 16th April 2026.
Read more about house prices in DA15.
- Sold Apr 2026£505,000 | 3 Bed House9, Chester Road, Sidcup, DA15 8SA9, Chester Road, Sidcup, DA15 8SA
- Sold Nov 2025£405,000 | 3 Bed House135, Blackfen Road, Sidcup, DA15 8PZ135, Blackfen Road, Sidcup, DA15 8PZ
- Sold Oct 2025£485,000 | 3 Bed House7, Leechcroft Avenue, Sidcup, DA15 8RR7, Leechcroft Avenue, Sidcup, DA15 8RR
- Sold Jul 2025£418,000 | 3 Bed House35, Orchard Rise East, Sidcup, DA15 8RU35, Orchard Rise East, Sidcup, DA15 8RU
- Sold Apr 2025£379,000 | 3 Bed House6, Ridgeway East, Sidcup, DA15 8RZ6, Ridgeway East, Sidcup, DA15 8RZ
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 £476,972, ranging from £424,103 to £626,822.
- 141 Blackfen Road
3 Bed House | 13 m | Est. Value: £458,090
- 149 Blackfen Road
3 Bed House | 25 m | Est. Value: £458,090
- 137 Blackfen Road
3 Bed House | 31 m | Est. Value: £485,145
- 151 Blackfen Road
3 Bed House | 36 m | Est. Value: £478,621
- 135 Blackfen Road
3 Bed House | 39 m | Est. Value: £454,981
Location Comparison
Our analysis of the public data ranks 143, Blackfen Road, Sidcup as the 251st largest and the 190th most expensive of the 427 addresses on Blackfen Road, Sidcup, DA15.
Against the DA15 postcode district average, it is £49k less expensive than the typical property.
More reading links
Schools Nearby
- Our Lady of the Rosary Catholic Primary School500 m away
- Days Lane Primary School600 m away
- Alderwood Primary School600 m away
- Harris Academy Falconwood700 m away
- Bexley Grammar School1.1 km away
- Leigh Stationers' Academy1.2 km away
More reading links
Public Transport Nearby
- Falconwood|1.3 km away
- Welling|1.6 km away
- Sidcup|2.1 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.












