Our Data Sources
55, Gloucester Avenue, Sidcup has 2 entries in the Land Registry , most recently in January 2026 and a single entry in the EPC database dated September 2025.
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 55, Gloucester Avenue, Sidcup, we estimate a market value of £743,219 and a rental value of £2,637 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £658,280 and £2,336 per month respectively.
Plot Size
HM Land Registry records the plot of land for 55, Gloucester Avenue, Sidcup as measuring 221 m2.
That makes it the 28th largest plot in the postcode, where 35 of the 37 other houses have recorded plot data.
Energy Efficiency
55, Gloucester Avenue, Sidcup has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 11 Sep 2025.
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 55, Gloucester Avenue, Sidcup completed on 21st January 2026 at £760,500 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have dropped by 9.9% over the period since January 2026.
- Sold Jan 2026£760,500
- Sold Jun 2015£430,000
Similar Properties Sold Nearby
Over the past 2 years 227 properties similar to 55, Gloucester Avenue, Sidcup have sold within a radius of 550 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 2nd October 2025, was 28, Gloucester Avenue, Sidcup, DA15 7LL, a freehold house which sold for £715,000.
Read more about house prices in DA15.
- Sold Oct 2025£715,000 | 4 Bed House28, Gloucester Avenue, Sidcup, DA15 7LL28, Gloucester Avenue, Sidcup, DA15 7LL
- Sold Sep 2025£650,000 | 4 Bed House16, Little Birches, Sidcup, DA15 7LW16, Little Birches, Sidcup, DA15 7LW
- Sold Jan 2024£690,000 | 4 Bed House36, Gloucester Avenue, Sidcup, DA15 7LL36, Gloucester Avenue, Sidcup, DA15 7LL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 61 addresses on Gloucester Avenue, Sidcup, DA15, 55, Gloucester Avenue, Sidcup comes out as the 9th largest and the 5th most expensive in our analysis of the public data.
It is also £204k more expensive than the average property across the DA15 district.
More reading links
Schools Nearby
- Longlands Primary School300 m away
- Burnt Oak Junior School800 m away
- Dulverton Primary School800 m away
- Chislehurst and Sidcup Grammar School1.2 km away
- Hurstmere School1.7 km away
- Chislehurst School for Girls1.7 km away
More reading links
Public Transport Nearby
- Sidcup|800 m away
- New Eltham|1.5 km away
- Albany Park|2.4 km away
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.
