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According to the public record, Flat 6, 423, Blackfen Road, Sidcup is a modern leasehold apartment with 398 ft2 of internal area.
Apartments of this size in this area normally have 1 bedroom.
Based on available information, and assuming reasonable condition, the estimated sale value for Flat 6, 423, Blackfen Road, Sidcup is £226,242 and the estimated rental value is £1,192 per month.
The apartment is within 423, Blackfen Road, Sidcup, DA15.
Blackfen Road, Sidcup, DA15 is located in the borough of Bexley within the DA15 postal district.
Flat 6, 423, Blackfen Road, Sidcup has 51 entries in the Land Registry , most recently in April 2025 and a single entry in the EPC database dated January 2022.
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.
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If Flat 6, 423, Blackfen Road, Sidcup is in very good condition we estimate a sale value of £237,554 and a rental value of £1,252 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £210,405 and a rental value of £1,109 per month.
Over the last 12 months the sale value of Flat 6 423 Blackfen Road Sidcup has decreased by an estimated £139 (0.1%) and its rental value has increased by an estimated £62 per month (5.2%), giving an expected gross yield of 6.3%.
Flat 6, 423, Blackfen Road, Sidcup has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 Jan 2022.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Electric storage heaters.
According to HM Land Registry, Flat 6, 423, Blackfen Road, Sidcup was last sold on 25th April 2025 for £230,000 and was recorded as a leasehold flat.
The property has had 5 sales since 1995.
Since April 2025, the market for similar properties has dropped 0.1%
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to Flat 6, 423, Blackfen Road, Sidcup within a radius of 590 metres over the last 2 years.
The most recent example is Flat 1, 423, Blackfen Road, Sidcup, DA15 9NN, a leasehold flat which sold for £222,500 on the 16th September 2022.
Read more about house prices in DA15.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Blackfen Road, Sidcup, DA15 has a total of 418 addresses. According to our analysis of all the public data, Flat 6, 423, Blackfen Road, Sidcup is the 411th largest and the 374th most expensive property on the street.
When compared to the postcode district it is £280k less expensive than the average property in DA15.
The nearest school is Blackfen School for Girls which is 105 metres away. The nearest train station is Sidcup which is 1.8 kilometres away.
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