Our Data Sources
23, Butler Avenue, Harrow has no records in the Land Registry and a single entry in the EPC database dated September 2023.
We combine this information with public data 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.
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 23, Butler Avenue, Harrow, we estimate a market value of £940,272 and a rental value of £4,352 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £832,812 and £3,855 per month respectively.
Plot Size
HM Land Registry records the plot of land for 23, Butler Avenue, Harrow as measuring 391 m2.
That makes it the 6th largest plot in the postcode, where 10 of the 11 other houses have recorded plot data.
Energy Efficiency
23, Butler Avenue, Harrow has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 05 Sep 2023.
The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2007 12 properties similar to 23, Butler Avenue, Harrow have sold within a radius of 360 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th September 2025, was 15, Roxborough Avenue, Harrow, HA1 3BT, a freehold house which sold for £790,000.
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.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £462,931, ranging from £223,959 to £1,092,819.
- 21 Butler Avenue
5 Bed House | 9 m | Est. Value: £889,426
- 27 Butler Avenue
5 Bed House | 17 m | Est. Value: £1,092,819
- 29A Butler Avenue
3 Bed Flat | 24 m | Est. Value: £577,368
- 17A Butler Avenue
2 Bed Flat | 26 m | Est. Value: £368,503
- 17 Butler Avenue
3 Bed Flat | 26 m | Est. Value: £449,685
Location Comparison
Of the 81 addresses on Butler Avenue, Harrow, HA1, 23, Butler Avenue, Harrow comes out as the 9th largest and the 8th most expensive in our analysis of the public data.
It is also £427k more expensive than the average property across the HA1 district.
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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
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.












