Our Data Sources
18, Glentrammon Avenue, Orpington has 31 entries in the Land Registry , most recently in March 2017 and a single entry in the EPC database dated March 2009.
We combine this information with that 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
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 18, Glentrammon Avenue, Orpington, we estimate a market value of £725,533 and a rental value of £2,609 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £642,615 and £2,311 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Glentrammon Avenue, Orpington as measuring 524 m2.
That makes it the 2nd largest plot in the postcode, where all 10 other houses have recorded plot data.
Energy Efficiency
18, Glentrammon Avenue, Orpington has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 27 Mar 2009.
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 18, Glentrammon Avenue, Orpington completed on 10th March 2017 at £530,000 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 27.3% over the period since March 2017.
- Sold Mar 2017£530,000
- Sold May 2009£240,000
- Sold Apr 1996£115,500
Similar Properties Sold Nearby
Over the past 2 years 107 properties similar to 18, Glentrammon Avenue, Orpington have sold within a radius of 680 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 19th December 2025, was 51, Glentrammon Road, Orpington, BR6 6DF, a freehold house which sold for £615,000.
Read more about house prices in BR6.
- Sold Dec 2025£615,000 | 3 Bed House51, Glentrammon Road, Orpington, BR6 6DF51, Glentrammon Road, Orpington, BR6 6DF
- Sold Nov 2025£640,000 | 3 Bed House6, Glentrammon Avenue, Orpington, BR6 6JZ6, Glentrammon Avenue, Orpington, BR6 6JZ
- Sold Oct 2021£640,000 | 3 Bed House54, Woodlands Road, Orpington, BR6 6EB54, Woodlands Road, Orpington, BR6 6EB
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 39 addresses on Glentrammon Avenue, Orpington, BR6, 18, Glentrammon Avenue, Orpington comes out as the 17th largest and the 4th most expensive in our analysis of the public data.
It is also £47k more expensive than the average property across the BR6 district.
More reading links
Schools Nearby
- Green Street Green Primary School200 m away
- Warren Road Primary School700 m away
- Holy Innocents Catholic Primary School1.3 km away
- St Olave's and St Saviour's Grammar School1.5 km away
- Newstead Wood School1.9 km away
- Darrick Wood School2.3 km away
More reading links
Public Transport Nearby
- Chelsfield|1.2 km away
- Orpington|2.1 km away
- Knockholt|2.9 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












