Our Data Sources
21, Butler Avenue, Harrow has 21 entries in the Land Registry, most recently in June 2012 and a single entry in the EPC database dated August 2010.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 21, Butler Avenue, Harrow would be worth £933,897, with a potential rental value of £4,323 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £827,166, with a rental value of £3,829 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Butler Avenue, Harrow occupies a 387 m2 plot as recorded by HM Land Registry.
Of the 11 other houses in this postcode, 10 have recorded plot sizes, and this one ranks as the 9th largest.
Energy Efficiency
21, Butler Avenue, Harrow has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 07 Aug 2010.
The property is connected to mains gas and has partial secondary glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, Butler Avenue, Harrow last changed hands on 12th June 2012, selling for £543,125. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 59.7% since June 2012.
- Sold Jun 2012£543,125
- Sold Sep 1999£290,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 12 sales of comparable properties within 360 metres of 21, Butler Avenue, Harrow since 2007.
Most recently, 15, Roxborough Avenue, Harrow, HA1 3BT, a freehold house, sold at £790,000 on the 11th September 2025.
Read more about house prices in HA1.
- Sold Sep 2025£790,000 | 4 Bed House15, Roxborough Avenue, Harrow, HA1 3BT15, Roxborough Avenue, Harrow, HA1 3BT
- Sold Sep 2025£840,000 | 4 Bed House41, Butler Avenue, Harrow, HA1 4EJ41, Butler Avenue, Harrow, HA1 4EJ
- Sold Jul 2023£1,068,000 | 5 Bed House27, Roxborough Avenue, Harrow, HA1 3BT27, Roxborough Avenue, Harrow, HA1 3BT
- Sold Mar 2023£790,000 | 4 Bed House21, Roxborough Avenue, Harrow, HA1 3BT21, Roxborough Avenue, Harrow, HA1 3BT
- Sold Mar 2021£905,000 | 5 Bed House25, Roxborough Avenue, Harrow, HA1 3BT25, Roxborough Avenue, Harrow, HA1 3BT
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 £508,245, ranging from £223,959 to £1,092,819.
- 23 Butler Avenue
5 Bed House | 9 m | Est. Value: £895,497
- 17A Butler Avenue
2 Bed Flat | 16 m | Est. Value: £368,503
- 17 Butler Avenue
3 Bed Flat | 16 m | Est. Value: £449,685
- 15 Butler Avenue
3 Bed Flat | 26 m | Est. Value: £454,313
- 27 Butler Avenue
5 Bed House | 27 m | Est. Value: £1,092,819
Location Comparison
Our analysis of the public data ranks 21, Butler Avenue, Harrow as the 16th largest and the 9th most expensive of the 81 addresses on Butler Avenue, Harrow, HA1.
Against the HA1 postcode district average, it is £421k more expensive than the typical property.
More reading links
Schools Nearby
- St Anselm's Catholic Primary School400 m away
- Norbury School600 m away
- Vaughan Primary School700 m away
- Whitmore High School800 m away
- Harrow High School1.2 km away
- Nower Hill High School2.0 km away
More reading links
Public Transport Nearby
- Harrow-on-the-Hill|500 m away
- West Harrow|600 m away
- North Harrow|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 available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
