Our Data Sources
40, Northwick Avenue, Harrow has no records in the Land Registry and a single entry in the EPC database dated July 2024.
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 40, Northwick Avenue, Harrow, we estimate a market value of £504,870 and a rental value of £2,235 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £447,171 and £1,980 per month respectively.
Energy Efficiency
40, Northwick Avenue, Harrow has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Jul 2024.
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 2012 46 properties similar to 40, 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 20th June 2025, was Flat 1, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NU, a leasehold flat which sold for £435,000.
Read more about house prices in HA3.
- 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 Oct 2024£585,000 | 3 Bed Flat12, Pine Court 44-46, Kenton Road, Harrow, HA3 8LS12, Pine Court 44-46, Kenton Road, Harrow, HA3 8LS
- Sold Aug 2024£420,000 | 3 Bed FlatFlat 40, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NUFlat 40, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NU
- Sold Jul 2024£412,500 | 3 Bed FlatFlat 25, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NUFlat 25, Randolph House 2-12, Northwick Park Road, Harrow, HA1 2NU
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 £714,994, ranging from £461,414 to £1,154,742.
- 40A Northwick Avenue
3 Bed Flat | 0 m | Est. Value: £461,414
- 38A Northwick Avenue
4 Bed House | 13 m | Est. Value: £641,352
- 42 Northwick Avenue
4 Bed House | 13 m | Est. Value: £708,773
- 44 Northwick Avenue
4 Bed House | 22 m | Est. Value: £701,813
- 36 Northwick Avenue
5 Bed House | 24 m | Est. Value: £784,358
Location Comparison
Of the 162 addresses on Northwick Avenue, Harrow, HA3, 40, Northwick Avenue, Harrow comes out as the 95th largest and the 87th most expensive in our analysis of the public data.
It is also £30k 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
More reading links
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.












