Our Data Sources
21, Grasmere Avenue, Ruislip has no records in the Land Registry and a single entry in the EPC database dated December 2011.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 21, Grasmere Avenue, Ruislip would be worth £644,204, with a potential rental value of £2,474 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £570,581, with a rental value of £2,191 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Grasmere Avenue, Ruislip occupies a 347 m2 plot as recorded by HM Land Registry.
All 10 other houses in this postcode have recorded plot sizes, and this one ranks as the 7th largest.
Energy Efficiency
21, Grasmere Avenue, Ruislip has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 08 Dec 2011.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 166 sales of comparable properties within 610 metres of 21, Grasmere Avenue, Ruislip since 2009.
Most recently, 44, Howletts Lane, Ruislip, HA4 7RS, a freehold house, sold at £810,000 on the 21st November 2025.
Read more about house prices in HA4.
- Sold Nov 2025£810,000 | 3 Bed House44, Howletts Lane, Ruislip, HA4 7RS44, Howletts Lane, Ruislip, HA4 7RS
- Sold Mar 2025£580,000 | 3 Bed House7, Ardley Close, Ruislip, HA4 7PL7, Ardley Close, Ruislip, HA4 7PL
- Sold Nov 2024£555,000 | 3 Bed House29, Woodville Gardens, Ruislip, HA4 7NB29, Woodville Gardens, Ruislip, HA4 7NB
- Sold Aug 2024£655,000 | 3 Bed House72, Whiteheath Avenue, Ruislip, HA4 7PW72, Whiteheath Avenue, Ruislip, HA4 7PW
- Sold Jul 2024£463,000 | 3 Bed House18, Heathfield Rise, Ruislip, HA4 7NE18, Heathfield Rise, Ruislip, HA4 7NE
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 £683,005, ranging from £507,489 to £1,052,487.
- 23 Grasmere Avenue
4 Bed House | 6 m | Est. Value: £701,638
- 19 Grasmere Avenue
4 Bed House | 12 m | Est. Value: £716,716
- 25 Grasmere Avenue
4 Bed House | 18 m | Est. Value: £812,296
- 47 Fairfield Avenue
4 Bed House | 28 m | Est. Value: £712,545
- 45 Fairfield Avenue
3 Bed House | 34 m | Est. Value: £660,393
Location Comparison
Our analysis of the public data ranks 21, Grasmere Avenue, Ruislip as the 11th largest and the 10th most expensive of the 19 addresses on Grasmere Avenue, Ruislip, HA4.
Against the HA4 postcode district average, it is £39k more expensive than the typical property.
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Schools Nearby
- Whiteheath Junior School200 m away
- Bishop Winnington-Ingram CofE Primary School300 m away
- Whiteheath Infant & Nursery School300 m away
- Bishop Ramsey Church of England School2.0 km away
- The Douay Martyrs Catholic School2.2 km away
- Haydon School2.4 km away
More reading links
Public Transport Nearby
- West Ruislip|1.0 km away
- Ruislip|1.4 km away
- Ruislip Manor|1.9 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a High risk of flooding.












