Our Data Sources
14, Mayfield Avenue, Harrow has no recent1 records in the Land Registry and a single entry in the EPC database dated September 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 14, Mayfield Avenue, Harrow, we estimate a market value of £660,163 and a rental value of £2,574 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £584,715 and £2,280 per month respectively.
Plot Size
HM Land Registry records the plot of land for 14, Mayfield Avenue, Harrow as measuring 412 m2.
That makes it the 10th largest plot in the postcode, where all 23 other houses have recorded plot data.
Energy Efficiency
14, Mayfield Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Sep 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 14, Mayfield Avenue, Harrow completed on 19th September 2002 at £280,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
- Sold Sep 2002£280,000
Similar Properties Sold Nearby
Since 2011 111 properties similar to 14, Mayfield Avenue, Harrow have sold within a radius of 580 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 19th June 2025, was 32, Hawthorne Avenue, Harrow, HA3 8AG, a freehold house which sold for £680,000.
Read more about house prices in HA3.
- Sold Jun 2025£680,000 | 4 Bed House32, Hawthorne Avenue, Harrow, HA3 8AG32, Hawthorne Avenue, Harrow, HA3 8AG
- Sold Oct 2024£585,000 | 4 Bed House15, Alicia Close, Harrow, HA3 8HP15, Alicia Close, Harrow, HA3 8HP
- Sold Aug 2023£630,000 | 3 Bed House49, Elmwood Avenue, Harrow, HA3 8AJ49, Elmwood Avenue, Harrow, HA3 8AJ
- Sold Jun 2023£730,000 | 4 Bed House5, Hillbury Avenue, Harrow, HA3 8EP5, Hillbury Avenue, Harrow, HA3 8EP
- Sold Dec 2022£720,000 | 3 Bed House16, Hillbury Avenue, Harrow, HA3 8EW16, Hillbury Avenue, Harrow, HA3 8EW
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 £696,135, ranging from £596,306 to £833,509.
- 16 Mayfield Avenue
5 Bed House | 6 m | Est. Value: £830,777
- 12 Mayfield Avenue
5 Bed House | 12 m | Est. Value: £833,509
- 10 Mayfield Avenue
4 Bed House | 18 m | Est. Value: £638,390
- 20 Mayfield Avenue
5 Bed House | 24 m | Est. Value: £811,508
- 8 Mayfield Avenue
4 Bed House | 30 m | Est. Value: £635,182
Location Comparison
Of the 49 addresses on Mayfield Avenue, Harrow, HA3, 14, Mayfield Avenue, Harrow comes out as the 43rd largest and the 33rd most expensive in our analysis of the public data.
It is also £117k more expensive than the average property across the HA3 district.
More reading links
Schools Nearby
- Elmgrove Primary School & Nursery700 m away
- Saint Jerome Church of England Bilingual School1.0 km away
- Mount Stewart Infant School1.2 km away
- St Gregory's Catholic Science College800 m away
- Harrow High School900 m away
- Claremont High School1.6 km away
More reading links
Public Transport Nearby
- Kenton|300 m away
- Northwick Park|600 m away
- Harrow-on-the-Hill|1.4 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.





