Our Data Sources
350, Blackfen Road, Sidcup has 41 entries in the Land Registry, most recently in December 2025 and a single entry in the EPC database dated April 2021.
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
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 350, Blackfen Road, Sidcup, we estimate a market value of £408,199 and a rental value of £2,099 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £361,548 and £1,859 per month respectively.
Plot Size
HM Land Registry records the plot of land for 350, Blackfen Road, Sidcup as measuring 136 m2.
That makes it the 28th largest plot in the postcode, where all 28 other houses have recorded plot data.
Energy Efficiency
350, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Apr 2021.
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
The most recent sale of 350, Blackfen Road, Sidcup completed on 1st December 2025 at £400,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 4 times.
Values of comparable properties have risen by 4.6% over the period since December 2025.
- Sold Dec 2025£400,000
- Sold Sep 2021£362,000
- Sold May 2010£175,000
Similar Properties Sold Nearby
Since 2020 286 properties similar to 350, Blackfen Road, Sidcup have sold within a radius of 490 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 25th March 2026, was 144, Burns Avenue, Sidcup, DA15 9HR, a freehold house which sold for £400,000.
Read more about house prices in DA15.
- Sold Mar 2026£400,000 | 3 Bed House144, Burns Avenue, Sidcup, DA15 9HR144, Burns Avenue, Sidcup, DA15 9HR
- Sold Nov 2025£340,000 | 3 Bed House370, Blackfen Road, Sidcup, DA15 9NY370, Blackfen Road, Sidcup, DA15 9NY
- Sold Nov 2025£425,000 | 2 Bed House69, Penshurst Avenue, Sidcup, DA15 9EZ69, Penshurst Avenue, Sidcup, DA15 9EZ
- Sold Oct 2025£370,000 | 3 Bed House54, Burns Avenue, Sidcup, DA15 9HP54, Burns Avenue, Sidcup, DA15 9HP
- Sold Oct 2025£417,000 | 3 Bed House52, Burns Avenue, Sidcup, DA15 9HP52, Burns Avenue, Sidcup, DA15 9HP
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 £431,968, ranging from £337,799 to £517,664.
- 348 Blackfen Road
3 Bed House | 4 m | Est. Value: £454,453
- 352 Blackfen Road
2 Bed House | 4 m | Est. Value: £365,408
- 354 Blackfen Road
2 Bed House | 8 m | Est. Value: £337,799
- 356 Blackfen Road
3 Bed House | 13 m | Est. Value: £388,761
- 358 Blackfen Road
3 Bed House | 17 m | Est. Value: £431,055
Location Comparison
Of the 427 addresses on Blackfen Road, Sidcup, DA15, 350, Blackfen Road, Sidcup comes out as the 288th largest and the 260th most expensive in our analysis of the public data.
It is also £115k less expensive than the average property across the DA15 district.
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
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.
