Our Data Sources
21, Dene Avenue, Sidcup has 2 entries in the Land Registry , most recently in August 2022 and a single entry in the EPC database dated February 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
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 21, Dene Avenue, Sidcup is in very good condition we estimate a sale value of £766,661 and a rental value of £2,858 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £679,043 and a rental value of £2,531 per month.
Plot Size
According to data from HM Land Registry, 21, Dene Avenue, Sidcup sits on a plot of 416 m2.
We have plot size data on 30 out of 30 other houses in the postcode and 21, Dene Avenue, Sidcup sits on the 16th largest plot.
Energy Efficiency
21, Dene Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Feb 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 21, Dene Avenue, Sidcup was last sold on 31st August 2022 for £657,350 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since August 2022, the market for similar properties has dropped by 1.7%.
- Sold Aug 2022£657,350
- Sold Nov 2007£320,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 119 sales of properties similar to 21, Dene Avenue, Sidcup within a radius of 640 metres over the last 2 years.
The most recent example is 28, Dene Avenue, Sidcup, DA15 9LD, a freehold house which sold for £740,000 on the 24th October 2025.
Read more about house prices in DA15.
- Sold Oct 2025£740,000 | 5 Bed House28, Dene Avenue, Sidcup, DA15 9LD28, Dene Avenue, Sidcup, DA15 9LD
- Sold Oct 2024£760,000 | 4 Bed House15, Dene Avenue, Sidcup, DA15 9LD15, Dene Avenue, Sidcup, DA15 9LD
- Sold Oct 2019£540,000 | 4 Bed House1, Dene Avenue, Sidcup, DA15 9LD1, Dene Avenue, Sidcup, DA15 9LD
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Dene Avenue, Sidcup, DA15 has a total of 30 addresses. According to our analysis of all the public data, 21, Dene Avenue, Sidcup is the 10th largest and the 10th most expensive property on the street.
When compared to the postcode district it is £227k more expensive than the average property in DA15.
More reading links
Schools Nearby
- Sherwood Park Primary School500 m away
- Chatsworth Infant School600 m away
- Holy Trinity Lamorbey Church of England School900 m away
- Hurstmere School500 m away
- Blackfen School for Girls700 m away
- Chislehurst and Sidcup Grammar School800 m away
More reading links
Public Transport Nearby
- Sidcup|1.1 km away
- Albany Park|1.2 km away
- Bexley|2.4 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












