Our Data Sources
21A, Blackfen Road, Sidcup has a single entry in the Land Registry from September 2020 and a single entry in the EPC database dated September 2017.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21A, Blackfen Road, Sidcup, we estimate a market value of £200,687 and a rental value of £1,311 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £177,751 and £1,161 per month respectively.
Energy Efficiency
21A, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 18 Sep 2017.
The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 21A, Blackfen Road, Sidcup completed on 16th September 2020 at £180,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 97.9% over the period since September 2020.
- Sold Sep 2020£180,000
Properties Sold Nearby
Since 2007 815 properties have sold within 480 metres of 21A, Blackfen Road, Sidcup, per the Land Registry and our network of Estate Agents.
The latest, on the 18th December 2025, was 3, Martel Court 28, Blackfen Road, Sidcup, DA15 8SN, a leasehold flat which sold for £300,000.
Read more about house prices in DA15.
- Sold Dec 2025£300,000 | 2 Bed Flat3, Martel Court 28, Blackfen Road, Sidcup, DA15 8SN3, Martel Court 28, Blackfen Road, Sidcup, DA15 8SN
- Sold May 2025£410,000 | 2 Bed Flat15A, Blackfen Road, Sidcup, DA15 8QD15A, Blackfen Road, Sidcup, DA15 8QD
- Sold Aug 2024£1,100,000 | 3 Bed House19-21, Blackfen Road, Sidcup, DA15 8QD19-21, Blackfen Road, Sidcup, DA15 8QD
- Sold Feb 2024£764,400 | 4 Bed House10, Blackfen Road, Sidcup, DA15 8SN10, Blackfen Road, Sidcup, DA15 8SN
- Sold May 2023£985,000 | 3 Bed House12, Blackfen Road, Sidcup, DA15 8SN12, Blackfen Road, Sidcup, DA15 8SN
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 £286,452, ranging from £148,591 to £642,979.
- 19A Blackfen Road
2 Bed Flat | 5 m | Est. Value: £173,239
- 17A Blackfen Road
2 Bed Flat | 12 m | Est. Value: £154,797
- 15A Blackfen Road
2 Bed Flat | 17 m | Est. Value: £169,727
- 29 Blackfen Road
3 Bed House | 25 m | Est. Value: £595,091
- Flat 2, Heaslip Court 13 Blackfen Road
2 Bed Flat | 26 m | Est. Value: £159,421
Location Comparison
Of the 427 addresses on Blackfen Road, Sidcup, DA15, 21A, Blackfen Road, Sidcup comes out as the 165th largest and the 402nd most expensive in our analysis of the public data.
It is also £313k less expensive than the average property across the DA15 district.
More reading links
Schools Nearby
- Alderwood Primary School300 m away
- Our Lady of the Rosary Catholic Primary School500 m away
- Days Lane Primary School800 m away
- Harris Academy Falconwood800 m away
- Leigh Stationers' Academy800 m away
- Bexley Grammar School1.5 km away
More reading links
Public Transport Nearby
- Falconwood|1.1 km away
- Welling|1.8 km away
- New Eltham|1.9 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
