Our Data Sources
21, Mahlon Avenue, Ruislip has a single entry in the Land Registry from September 2015 and a single entry in the EPC database dated February 2015.
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
In very good condition, we estimate 21, Mahlon Avenue, Ruislip would be worth £598,460, with a potential rental value of £2,525 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £530,065, with a rental value of £2,237 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Mahlon Avenue, Ruislip occupies a 258 m2 plot as recorded by HM Land Registry.
All 25 other houses in this postcode have recorded plot sizes, and this one ranks as the 16th largest.
Energy Efficiency
21, Mahlon Avenue, Ruislip has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Feb 2015.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, Mahlon Avenue, Ruislip last changed hands on 17th September 2015, selling for £450,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 40.2% since September 2015.
- Sold Sep 2015£450,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 168 sales of comparable properties within 680 metres of 21, Mahlon Avenue, Ruislip since 2009.
Most recently, 263, West End Road, Ruislip, HA4 6QR, a freehold house, sold at £550,000 on the 3rd November 2025.
Read more about house prices in HA4.
- Sold Nov 2025£550,000 | 3 Bed House263, West End Road, Ruislip, HA4 6QR263, West End Road, Ruislip, HA4 6QR
- Sold Jul 2025£597,000 | 3 Bed House28, Priors Gardens, Ruislip, HA4 6UG28, Priors Gardens, Ruislip, HA4 6UG
- Sold Jun 2025£480,000 | 3 Bed House6, Wingfield Way, Ruislip, HA4 6RH6, Wingfield Way, Ruislip, HA4 6RH
- Sold May 2025£560,000 | 3 Bed House261, West End Road, Ruislip, HA4 6QR261, West End Road, Ruislip, HA4 6QR
- Sold Feb 2025£526,000 | 3 Bed House16, Deane Avenue, Ruislip, HA4 6SR16, Deane Avenue, Ruislip, HA4 6SR
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £610,300, ranging from £348,713 to £919,812.
- 19 Mahlon Avenue
3 Bed House | 4 m | Est. Value: £566,654
- 23 Mahlon Avenue
3 Bed House | 11 m | Est. Value: £573,252
- 25 Mahlon Avenue
4 Bed House | 14 m | Est. Value: £675,742
- 17 Mahlon Avenue
3 Bed House | 16 m | Est. Value: £572,339
- 15 Mahlon Avenue
4 Bed House | 22 m | Est. Value: £678,668
Location Comparison
Our analysis of the public data ranks 21, Mahlon Avenue, Ruislip as the 39th largest and the 36th most expensive of the 78 addresses on Mahlon Avenue, Ruislip, HA4.
Against the HA4 postcode district average, it is £5k less expensive than the typical property.
More reading links
Schools Nearby
- Bourne Primary School400 m away
- Deanesfield Primary School1.1 km away
- St Swithun Wells Catholic Primary School1.4 km away
- Queensmead School1.0 km away
- Ruislip High School1.4 km away
- Islip Manor High School1.8 km away
More reading links
Public Transport Nearby
- South Ruislip|400 m away
- Ruislip Gardens|1.1 km away
- Ruislip Manor|2.4 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.





