Our Data Sources
40A, Northwick Avenue, Harrow has no records in the Land Registry and a single entry in the EPC database dated July 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 40A, Northwick Avenue, Harrow, we estimate a market value of £426,891 and a rental value of £1,915 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £378,104 and £1,696 per month respectively.
Energy Efficiency
40A, Northwick Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Jul 2022.
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
Since 2016 67 properties similar to 40A, Northwick Avenue, Harrow have sold within a radius of 580 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 1st April 2026, was 2, Oxhey Lodge 26-28, Manor Road, Harrow, HA1 2PB, a leasehold flat which sold for £337,000.
Read more about house prices in HA3.
- Sold Apr 2026£337,000 | 3 Bed Flat2, Oxhey Lodge 26-28, Manor Road, Harrow, HA1 2PB2, Oxhey Lodge 26-28, Manor Road, Harrow, HA1 2PB
- Sold Mar 2026£403,000 | 2 Bed FlatFlat A, 47, Manor Road, Harrow, HA1 2PFFlat A, 47, Manor Road, Harrow, HA1 2PF
- Sold Jun 2025£435,000 | 3 Bed FlatFlat 1, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NUFlat 1, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NU
- Sold May 2025£420,000 | 3 Bed FlatFlat 47, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NUFlat 47, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NU
- Sold Apr 2025£1,000,000 | 3 Bed FlatTudor House 185, Kenton Road, Harrow, HA3 0EYTudor House 185, Kenton Road, Harrow, HA3 0EY
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £708,795, ranging from £459,178 to £1,168,292.
- 40 Northwick Avenue
3 Bed Flat | 0 m | Est. Value: £459,178
- 38A Northwick Avenue
4 Bed House | 13 m | Est. Value: £640,335
- 42 Northwick Avenue
4 Bed House | 13 m | Est. Value: £708,884
- 44 Northwick Avenue
4 Bed House | 22 m | Est. Value: £701,763
- 36 Northwick Avenue
5 Bed House | 24 m | Est. Value: £786,854
Location Comparison
Of the 162 addresses on Northwick Avenue, Harrow, HA3, 40A, Northwick Avenue, Harrow comes out as the 99th largest and the 92nd most expensive in our analysis of the public data.
It is also £105k less expensive than the average property across the HA3 district.
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Schools Nearby
- Saint Jerome Church of England Bilingual School1.0 km away
- Elmgrove Primary School & Nursery1.1 km away
- Harris Primary Academy South Kenton1.3 km away
- Harrow High School500 m away
- St Gregory's Catholic Science College1.2 km away
- Wembley High Technology College1.9 km away
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Public Transport Nearby
- Northwick Park|200 m away
- Kenton|300 m away
- Harrow-on-the-Hill|1.0 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.





