Our Data Sources
21, Wellington Avenue, Sidcup has a single entry in the Land Registry from December 2023 and a single entry in the EPC database dated May 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium 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, Wellington Avenue, Sidcup is in very good condition we estimate a sale value of £698,920 and a rental value of £3,370 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £619,043 and a rental value of £2,985 per month.
Plot Size
According to data from HM Land Registry, 21, Wellington Avenue, Sidcup sits on a plot of 348 m2.
We have plot size data on 44 out of 44 other houses in the postcode and 21, Wellington Avenue, Sidcup sits on the 3rd largest plot.
Energy Efficiency
21, Wellington Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 May 2022.
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
According to HM Land Registry, 21, Wellington Avenue, Sidcup was last sold on 14th December 2023 for £650,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since December 2023, the market for similar properties has risen by 0.5%.
- Sold Dec 2023£650,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 6 sales of properties similar to 21, Wellington Avenue, Sidcup within a radius of 470 metres since 2014.
The most recent example is 202, Burnt Oak Lane, Sidcup, DA15 9DG, a freehold house which sold for £742,500 on the 26th September 2025.
Read more about house prices in DA15.
- Sold Sep 2025£742,500 | 5 Bed House202, Burnt Oak Lane, Sidcup, DA15 9DG202, Burnt Oak Lane, Sidcup, DA15 9DG
- Sold Mar 2022£620,000 | 5 Bed House1, Sycamore Avenue, Sidcup, DA15 8PL1, Sycamore Avenue, Sidcup, DA15 8PL
- Sold Oct 2018£640,000 | 5 Bed House379, Blackfen Road, Sidcup, DA15 9NJ379, Blackfen Road, Sidcup, DA15 9NJ
- Sold Apr 2017£630,000 | 5 Bed House82, Wellington Avenue, Sidcup, DA15 9HQ82, Wellington Avenue, Sidcup, DA15 9HQ
- Sold Oct 2015£525,000 | 5 Bed House351, Blackfen Road, Sidcup, DA15 9NJ351, Blackfen Road, Sidcup, DA15 9NJ
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 £485,886, ranging from £392,885 to £795,827.
- 23 Wellington Avenue
3 Bed House | 5 m | Est. Value: £431,062
- 25 Wellington Avenue
3 Bed House | 10 m | Est. Value: £459,751
- 19 Wellington Avenue
5 Bed House | 29 m | Est. Value: £795,827
- 33 Wellington Avenue
3 Bed House | 36 m | Est. Value: £399,225
- 17 Wellington Avenue
3 Bed House | 37 m | Est. Value: £522,647
Location Comparison
Wellington Avenue, Sidcup, DA15 has a total of 135 addresses. According to our analysis of all the public data, 21, Wellington Avenue, Sidcup is the 2nd largest and the 5th most expensive property on the street.
When compared to the postcode district it is £159k more expensive than the average property in DA15.
More reading links
Schools Nearby
- Days Lane Primary School400 m away
- Sherwood Park Primary School600 m away
- Our Lady of the Rosary Catholic Primary School800 m away
- Blackfen School for Girls600 m away
- Bexley Grammar School1.0 km away
- Hurstmere School1.3 km away
More reading links
Public Transport Nearby
- Sidcup|1.5 km away
- Welling|1.9 km away
- Albany Park|2.1 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
