425 Blackfen Road, Sidcup, DA15 9NN is a leasehold semi-detached property built between 1983-1990. The property offers approximately 747 square feet of living space. In this location, properties of similar size usually have two bedrooms.

The estimated current market value of the property is £245,489 , which equates to approximately £331 per square foot. It was last sold on 25 Feb 2008 for £122,500. Since then, the value has increased by £122,989, representing a 100.4% increase, or approximately 5.5% per year.

The current estimated value of £245,489 is:

  • 45.8% lower than the average property price on Blackfen Road
  • 42.7% lower than the average in the DA15 9NN postcode area
  • and 51.8% lower than the average price for Sidcup as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded as owner-occupied both times. This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 11 February 2012, the property was recorded as owner-occupied.

View sold house prices in DA15 9NN

Building approximate location

About Property

Type
Semi-Detached House
Built
1983-1990
Interior Size
747 sq ft
Tenure
Leasehold
Price (estimate)
£245,489
Price Per sq ft (estimate)
£331
Bedroom Count (estimate)
2 bedrooms

EPC Summary

425 Blackfen Road, Sidcup, Bexley, Greater London Authority, DA15 9NN has an Energy Performance Certificate (EPC) rating of E, based on the latest assessment carried out on 11 Feb 2012.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. A standard tariff electric immersion heater is used to provide hot water. The windows are mostly double glazed.

The previous EPC assessment was conducted on 18 Feb 2011, when the property was rated C. The current rating of E reflects a decline in energy efficiency of 25.4%.

Since the previous assessment, several changes were observed:

  • The main heating energy efficiency improving from average to good, while the heating system type remained the same (boiler and radiators, mains gas).
  • The hot water system was changed from from main system to electric immersion, standard tariff, with its energy efficiency changing from average to very poor.
  • The roof construction or insulation changed from pitched, 150 mm loft insulation to pitched, 200 mm loft insulation, with no change in energy efficiency (good).
  • The wall construction or insulation changed from cavity wall, filled cavity to cavity wall, as built, insulated (assumed), with no change in energy efficiency (good).
  • The windows were upgraded from full secondary glazing to mostly double glazing.
  • The lighting was updated from low energy lighting in all fixed outlets to low energy lighting in 13% of fixed outlets, with efficiency changing from very good to poor.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
Electric immersion, standard tariff
Very Poor
Roof
Pitched, 200 mm loft insulation
Good
Walls
Cavity wall, as built, insulated (assumed)
Good
Windows
Mostly double glazing
Average
Lighting
Low energy lighting in 13% of fixed outlets
Poor

Compared to DA15 9NN

16 th / 21
Price Rank
43% lower than average
11 th / 17
Size Rank
14% smaller than average
16 th / 17
Price Per Sq FT Rank
34% lower than average

Sale History

Today
£245,489
streetscan.co.uk estimate
+100 %
25 Feb 2008
£122,500
Leasehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

rooms: 4
size: 786 sq ft
sale price: £405,000
sale date: 6 Nov 2025
rooms: 4
size: 797 sq ft
sale price: £450,000
sale date: 15 Feb 2023
rooms: 4
size: 797 sq ft
sale price: £457,000
sale date: 19 Aug 2022
rooms: 5
size: 840 sq ft
sale price: £465,000
sale date: 25 Jun 2021
rooms: 5
size: 657 sq ft
sale price: £426,000
sale date: 28 May 2021

Data Sources

The property at 425 Blackfen Road, Sidcup, DA15 9NN appears once in HM Land Registry records, with the transaction recorded on 25 Feb 2008. It also has three Energy Performance Certificate (EPC) records, the earliest dating back to 11 Feb 2012. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.