Our Data Sources
21, Claremont Avenue, Harrow has no records in the the Land Registry and a single entry in the EPC database dated May 2026.
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
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, Claremont Avenue, Harrow, we estimate a market value of £678,257 and a rental value of £2,939 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £600,742 and £2,603 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Claremont Avenue, Harrow as measuring 220 m2.
That makes it the 17th largest plot in the postcode, where all 35 other houses have recorded plot data.
Energy Efficiency
21, Claremont Avenue, Harrow has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 02 May 2026.
The property is connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 71 properties similar to 21, Claremont Avenue, Harrow have sold within a radius of 510 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 6th August 2025, was 31, Salehurst Close, Harrow, HA3 0UG, a freehold house which sold for £700,000.
Read more about house prices in HA3.
- Sold Aug 2025£700,000 | 4 Bed House31, Salehurst Close, Harrow, HA3 0UG31, Salehurst Close, Harrow, HA3 0UG
- Sold Feb 2025£665,000 | 4 Bed House1, Morland Road, Harrow, HA3 9LU1, Morland Road, Harrow, HA3 9LU
- Sold Mar 2022£675,000 | 4 Bed House17, Salehurst Close, Harrow, HA3 0UG17, Salehurst Close, Harrow, HA3 0UG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 35 addresses on Claremont Avenue, Harrow, HA3, 21, Claremont Avenue, Harrow comes out as the 5th largest and the 5th most expensive in our analysis of the public data.
It is also £135k more expensive than the average property across the HA3 district.
More reading links
Schools Nearby
- Uxendon Manor Primary School400 m away
- St Bernadette's Catholic Primary School500 m away
- Glebe Primary School800 m away
- Claremont High School100 m away
- St Gregory's Catholic Science College800 m away
- JFS1.0 km away
More reading links
Public Transport Nearby
- Kingsbury|1.0 km away
- Queensbury|1.1 km away
- Preston Road|1.5 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.












