Our Data Sources
6, Portland Avenue, Sidcup has a single entry in the Land Registry from May 2016 and a single entry in the EPC database dated February 2016.
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 6, Portland Avenue, Sidcup, we estimate a market value of £528,187 and a rental value of £2,325 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £467,823 and £2,059 per month respectively.
Energy Efficiency
6, Portland Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Feb 2016.
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 6, Portland Avenue, Sidcup completed on 16th May 2016 at £335,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 36.0% over the period since May 2016.
- Sold May 2016£335,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 6, Portland Avenue, Sidcup have sold within a radius of 490 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 21st January 2026, was 9, Portland Avenue, Sidcup, DA15 9HA, a freehold house which sold for £515,000.
Read more about house prices in DA15.
- Sold Jan 2026£515,000 | 3 Bed House9, Portland Avenue, Sidcup, DA15 9HA9, Portland Avenue, Sidcup, DA15 9HA
- Sold May 2024£490,000 | 3 Bed House131, Wellington Avenue, Sidcup, DA15 9HB131, Wellington Avenue, Sidcup, DA15 9HB
- 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, 6, Portland Avenue, Sidcup comes out as the 13th largest and the 14th most expensive in our analysis of the public data.
It is also £733 less expensive than the average property across the DA15 district.
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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
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.












