Our Data Sources
21, College Avenue, Harrow has a single entry in the Land Registry from April 2009 and a single entry in the EPC database dated March 2009.
We combine this information with that 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.
Price Range & Condition
In very good condition, we estimate 21, College Avenue, Harrow would be worth £676,417, with a potential rental value of £2,891 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £599,112, with a rental value of £2,561 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, College Avenue, Harrow occupies a 297 m2 plot as recorded by HM Land Registry.
All 11 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.
Energy Efficiency
21, College Avenue, Harrow has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 14 Mar 2009.
The property is connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
21, College Avenue, Harrow last changed hands on 24th April 2009, selling for £290,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 88.8% since April 2009.
- Sold Apr 2009£290,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 161 sales of comparable properties within 480 metres of 21, College Avenue, Harrow across the last 2 years.
Most recently, 19, College Avenue, Harrow, HA3 6EY, a freehold house, sold at £650,000 on the 14th August 2025.
Read more about house prices in HA3.
- Sold Aug 2025£650,000 | 4 Bed House19, College Avenue, Harrow, HA3 6EY19, College Avenue, Harrow, HA3 6EY
- Sold Oct 2024£625,000 | 3 Bed House25, College Avenue, Harrow, HA3 6EY25, College Avenue, Harrow, HA3 6EY
- Sold Jun 2024£625,000 | 4 Bed House74, Park Crescent, Harrow, HA3 6ET74, Park Crescent, Harrow, HA3 6ET
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 21, College Avenue, Harrow as the 21st largest and the 19th most expensive of the 69 addresses on College Avenue, Harrow, HA3.
Against the HA3 postcode district average, it is £133k more expensive than the typical property.
More reading links
Schools Nearby
- Weald Rise Primary School500 m away
- Belmont School800 m away
- Hujjat Primary School1.0 km away
- Salvatorian Roman Catholic College500 m away
- The Sacred Heart Language College500 m away
- Hatch End High School1.4 km away
More reading links
Public Transport Nearby
- Harrow & Wealdstone|1.4 km away
- Headstone Lane|1.4 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












