Our Data Sources
20, Sefton Avenue, Harrow has a single entry in the Land Registry from January 2012 and a single entry in the EPC database dated November 2021.
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
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 20, Sefton Avenue, Harrow, we estimate a market value of £646,643 and a rental value of £2,812 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £572,741 and £2,490 per month respectively.
Plot Size
HM Land Registry records the plot of land for 20, Sefton Avenue, Harrow as measuring 270 m2.
That makes it the 13th largest plot in the postcode, where all 19 other houses have recorded plot data.
Energy Efficiency
20, Sefton Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 11 Nov 2021.
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 20, Sefton Avenue, Harrow completed on 16th January 2012 at £340,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 70.3% over the period since January 2012.
- Sold Jan 2012£340,000
Similar Properties Sold Nearby
Since 2015 129 properties similar to 20, Sefton Avenue, Harrow have sold within a radius of 420 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 19th January 2026, was 1, Enderley Road, Harrow, HA3 5HF, a freehold house which sold for £740,000.
Read more about house prices in HA3.
- Sold Jan 2026£740,000 | 4 Bed House1, Enderley Road, Harrow, HA3 5HF1, Enderley Road, Harrow, HA3 5HF
- Sold Sep 2025£487,500 | 3 Bed House4, Clewer Crescent, Harrow, HA3 5PZ4, Clewer Crescent, Harrow, HA3 5PZ
- Sold Aug 2025£565,000 | 3 Bed House72, Weighton Road, Harrow, HA3 6HZ72, 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 £496,082, ranging from £289,578 to £649,974.
- 18 Sefton Avenue
3 Bed House | 6 m | Est. Value: £451,080
- 22 Sefton Avenue
3 Bed House | 9 m | Est. Value: £576,194
- 24 Sefton Avenue
3 Bed House | 16 m | Est. Value: £477,352
- 16 Sefton Avenue
3 Bed House | 19 m | Est. Value: £482,256
- 14 Sefton Avenue
3 Bed House | 24 m | Est. Value: £549,410
Location Comparison
Of the 121 addresses on Sefton Avenue, Harrow, HA3, 20, Sefton Avenue, Harrow comes out as the 14th largest and the 7th most expensive in our analysis of the public data.
It is also £105k more expensive than the average property across the HA3 district.
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
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.
