Our Data Sources
12, Sefton Avenue has 21 entries in the Land Registry , most recently in October 2011 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 12, Sefton Avenue would be worth £801,972, with a potential rental value of £3,649 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £710,318, with a rental value of £3,232 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
12, Sefton Avenue occupies a 415 m2 plot as recorded by HM Land Registry.
All 30 other houses in this postcode have recorded plot sizes, and this one ranks as the 6th largest.
Sold Prices
12, Sefton Avenue last changed hands on 14th October 2011, selling for £400,000. 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 69.3% since October 2011.
- Sold Oct 2011£400,000
- Sold Mar 2001£200,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 153 sales of comparable properties within 490 metres of 12, Sefton Avenue across the last 2 years.
Most recently, 17, Sefton Avenue, London, NW7 3QB, a freehold house, sold at £850,000 on the 21st August 2025.
Read more about house prices in NW7.
- Sold Aug 2025£850,000 | 4 Bed House17, Sefton Avenue, London, NW7 3QB17, Sefton Avenue, London, NW7 3QB
- Sold Jul 2025£715,000 | 4 Bed House18, Sefton Avenue, London, NW7 3QD18, Sefton Avenue, London, NW7 3QD
- Sold Sep 2020£726,000 | 4 Bed House22, Sefton Avenue, London, NW7 3QD22, Sefton Avenue, London, NW7 3QD
•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 12, Sefton Avenue as the 40th largest and the 40th most expensive of the 71 addresses on Sefton Avenue, London, NW7.
Against the NW7 postcode district average, it is £59k more expensive than the typical property.
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Schools Nearby
- Deansbrook Infant School100 m away
- Deansbrook Junior School100 m away
- The Annunciation RC Junior School300 m away
- Saracens High School1.8 km away
- Mill Hill County High School1.9 km away
- St James' Catholic High School2.0 km away
More reading links
Public Transport Nearby
- Mill Hill Broadway|800 m away
- Edgware|1.1 km away
- Burnt Oak|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 is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












