Our Data Sources
21, Grasmere Gardens, Harrow has no records in the Land Registry and a single entry in the EPC database dated November 2012.
We combine this information with public data 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 21, Grasmere Gardens, Harrow, we estimate a market value of £507,779 and a rental value of £2,482 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £449,747 and £2,198 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Grasmere Gardens, Harrow as measuring 370 m2.
That makes it the 30th largest plot in the postcode, where all 46 other houses have recorded plot data.
Energy Efficiency
21, Grasmere Gardens, Harrow has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 05 Nov 2012.
The property is not connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2021 230 properties similar to 21, Grasmere Gardens, Harrow have sold within a radius of 470 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th December 2025, was 40, Borrowdale Avenue, Harrow, HA3 7PZ, a freehold house which sold for £550,000.
Read more about house prices in HA3.
- Sold Dec 2025£550,000 | 3 Bed House40, Borrowdale Avenue, Harrow, HA3 7PZ40, Borrowdale Avenue, Harrow, HA3 7PZ
- Sold Oct 2025£585,000 | 3 Bed House222, Kenmore Avenue, Harrow, HA3 8PS222, Kenmore Avenue, Harrow, HA3 8PS
- Sold Oct 2025£569,000 | 3 Bed House50, Curzon Avenue, Stanmore, HA7 2AN50, Curzon Avenue, Stanmore, HA7 2AN
- Sold Aug 2025£492,000 | 3 Bed House4, Fisher Road, Harrow, HA3 7JP4, Fisher Road, Harrow, HA3 7JP
- Sold Aug 2025£510,000 | 3 Bed House483, Kenton Lane, Harrow, HA3 7JW483, Kenton Lane, Harrow, HA3 7JW
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 £611,838, ranging from £478,183 to £807,613.
- 17 Grasmere Gardens
4 Bed House | 16 m | Est. Value: £694,480
- 25 Grasmere Gardens
3 Bed House | 17 m | Est. Value: £493,094
- 13 Grasmere Gardens
4 Bed House | 35 m | Est. Value: £586,574
- 24 Grasmere Gardens
4 Bed House | 39 m | Est. Value: £807,613
- 14 Grasmere Gardens
3 Bed House | 40 m | Est. Value: £549,182
Location Comparison
Of the 85 addresses on Grasmere Gardens, Harrow, HA3, 21, Grasmere Gardens, Harrow comes out as the 74th largest and the 72nd most expensive in our analysis of the public data.
It is also £27k less expensive than the average property across the HA3 district.
More reading links
Schools Nearby
- St Joseph's Catholic Primary School200 m away
- Belmont School400 m away
- Priestmead Primary School and Nursery500 m away
- The Sacred Heart Language College1.0 km away
- Salvatorian Roman Catholic College1.2 km away
- Park High School1.4 km away
More reading links
Public Transport Nearby
- Harrow & Wealdstone|1.0 km away
- Kenton|1.8 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












