Our Data Sources
9A, Portland Avenue, Sidcup has no records in the the Land Registry and a single entry in the EPC database dated March 2016.
We combine this information with public data 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 9A, Portland Avenue, Sidcup is in very good condition we estimate a sale value of £630,161 and a rental value of £2,606 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £558,142 and a rental value of £2,308 per month.
Plot Size
According to data from HM Land Registry, 9A, Portland Avenue, Sidcup sits on a plot of 353 m2.
We have plot size data on 52 out of 60 other houses in the postcode and 9A, Portland Avenue, Sidcup sits on the 7th largest plot.
Energy Efficiency
9A, Portland Avenue, Sidcup has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 14 Mar 2016.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 9A, Portland Avenue, Sidcup within a radius of 480 metres over the last 2 years.
The most recent example is 72A, Sherwood Park Avenue, Sidcup, DA15 9HX, a freehold house which sold for £585,000 on the 6th February 2026.
Read more about house prices in DA15.
- Sold Feb 2026£585,000 | 4 Bed House72A, Sherwood Park Avenue, Sidcup, DA15 9HX72A, Sherwood Park Avenue, Sidcup, DA15 9HX
- Sold Nov 2022£582,500 | 4 Bed House150, Burns Avenue, Sidcup, DA15 9HR150, Burns Avenue, Sidcup, DA15 9HR
- Sold Jul 2012£300,000 | 4 Bed House1A, Penshurst Avenue, Sidcup, DA15 9EZ1A, Penshurst Avenue, Sidcup, DA15 9EZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Portland Avenue, Sidcup, DA15 has a total of 60 addresses. According to our analysis of all the public data, 9A, Portland Avenue, Sidcup is the 2nd largest and the 2nd most expensive property on the street.
When compared to the postcode district it is £96k more expensive than the average property in DA15.
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Schools Nearby
- 400mSherwood Park Primary School
- 500mDays Lane Primary School
- 700mChatsworth Infant School
- 500mBlackfen School for Girls
- 1.1kmBexley Grammar School
- 1.1kmHurstmere School
More reading links
Public Transport Nearby
- 1.4kmSidcup
- 1.9kmAlbany Park
- 2.0kmWelling
Available Internet Speeds
According to recent data from Ofcom, ultrafast broadband is available in this area.
According to recent data from Ofcom, Ultrafast 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.












