Our Data Sources
10, Sefton Avenue, Harrow has 31 entries in the Land Registry, most recently in March 2013 and a single entry in the EPC database dated January 2010.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 10, Sefton Avenue, Harrow would be worth £682,472, with a potential rental value of £2,915 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £604,476, with a rental value of £2,582 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
10, Sefton Avenue, Harrow occupies a 280 m2 plot as recorded by HM Land Registry.
All 19 other houses in this postcode have recorded plot sizes, and this one ranks as the 7th largest.
Energy Efficiency
10, Sefton Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 28 Jan 2010.
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
10, Sefton Avenue, Harrow last changed hands on 15th March 2013, selling for £370,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 63.1% since March 2013.
- Sold Mar 2013£370,000
- Sold Apr 2002£237,000
- Sold Aug 1999£172,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 94 sales of comparable properties within 430 metres of 10, Sefton Avenue, Harrow since 2014.
Most recently, 10, Whitefriars Drive, Harrow, HA3 5HN, a freehold house, sold at £675,000 on the 11th February 2026.
Read more about house prices in HA3.
- Sold Feb 2026£675,000 | 4 Bed House10, Whitefriars Drive, Harrow, HA3 5HN10, Whitefriars Drive, Harrow, HA3 5HN
- Sold Jan 2026£740,000 | 4 Bed House1, Enderley Road, Harrow, HA3 5HF1, Enderley Road, Harrow, HA3 5HF
- Sold Sep 2025£625,000 | 4 Bed House74, Weighton Road, Harrow, HA3 6HZ74, Weighton Road, Harrow, HA3 6HZ
- Sold Aug 2025£625,000 | 4 Bed House26, Weighton Road, Harrow, HA3 6HZ26, Weighton Road, Harrow, HA3 6HZ
- Sold Jul 2025£625,000 | 4 Bed House33, Enderley Road, Harrow, HA3 5HF33, Enderley Road, Harrow, HA3 5HF
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 £507,899, ranging from £451,080 to £615,851.
- 8 Sefton Avenue
3 Bed House | 13 m | Est. Value: £500,782
- 14 Sefton Avenue
3 Bed House | 15 m | Est. Value: £549,410
- 16 Sefton Avenue
3 Bed House | 20 m | Est. Value: £482,256
- 18 Sefton Avenue
3 Bed House | 32 m | Est. Value: £451,080
- 21 Sefton Avenue
3 Bed House | 34 m | Est. Value: £499,648
Location Comparison
Our analysis of the public data ranks 10, Sefton Avenue, Harrow as the 10th largest and the 5th most expensive of the 121 addresses on Sefton Avenue, Harrow, HA3.
Against the HA3 postcode district average, it is £139k more expensive than the typical property.
More reading links
Schools Nearby
- Cedars Manor School600 m away
- St Teresa's Catholic Primary School and Nursery800 m away
- Weald Rise Primary School1.1 km away
- Salvatorian Roman Catholic College400 m away
- The Sacred Heart Language College600 m away
- Hatch End High School900 m away
More reading links
Public Transport Nearby
- Headstone Lane|800 m away
- Harrow & Wealdstone|1.3 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.












