Our Data Sources
9, Portland Avenue, Sidcup has 31 entries in the Land Registry , most recently in January 2026 and a single entry in the EPC database dated December 2018.
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.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 9, Portland Avenue, Sidcup, we estimate a market value of £508,177 and a rental value of £2,269 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £450,100 and £2,010 per month respectively.
Plot Size
HM Land Registry records the plot of land for 9, Portland Avenue, Sidcup as measuring 179 m2.
That makes it the 45th largest plot in the postcode, where 52 of the 60 other houses have recorded plot data.
Energy Efficiency
9, Portland Avenue, Sidcup has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 18 Dec 2018.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 9, Portland Avenue, Sidcup completed on 21st January 2026 at £515,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 4.7% over the period since January 2026.
- Sold Jan 2026£515,000
- Sold Jul 2019£439,995
- Sold Apr 1997£64,500
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 9, Portland Avenue, Sidcup have sold within a radius of 480 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 1st May 2024, was 11, Portland Avenue, Sidcup, DA15 9HA, a freehold house which sold for £430,000.
Read more about house prices in DA15.
- Sold May 2024£430,000 | 3 Bed House11, Portland Avenue, Sidcup, DA15 9HA11, Portland Avenue, Sidcup, DA15 9HA
- Sold Mar 2024£440,000 | 3 Bed House26, Portland Avenue, Sidcup, DA15 9HA26, Portland Avenue, Sidcup, DA15 9HA
- Sold May 2023£385,000 | 3 Bed House15, Portland Avenue, Sidcup, DA15 9HA15, Portland Avenue, Sidcup, DA15 9HA
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 60 addresses on Portland Avenue, Sidcup, DA15, 9, Portland Avenue, Sidcup comes out as the 27th largest and the 27th most expensive in our analysis of the public data.
It is also £20k less expensive than the average property across the DA15 district.
More reading links
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
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
