Our Data Sources
17, Sefton Avenue has 31 entries in the Land Registry , most recently in August 2025 and a single entry in the EPC database dated April 2025.
We combine this information with that of neighbouring properties to estimate the property 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 17, Sefton Avenue would be worth £872,388, with a potential rental value of £3,746 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £772,686, with a rental value of £3,318 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
17, Sefton Avenue occupies a 385 m2 plot as recorded by HM Land Registry.
All 15 other houses in this postcode have recorded plot sizes, and this one ranks as the 3rd largest.
Energy Efficiency
17, Sefton Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
17, Sefton Avenue last changed hands on 21st August 2025, selling for £850,000. 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 0.1% since August 2025.
- Sold Aug 2025£850,000
- Sold Aug 2002£289,950
- Sold May 2002£227,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 130 sales of comparable properties within 490 metres of 17, Sefton Avenue across the last 2 years.
Most recently, 18, Sefton Avenue, London, NW7 3QD, a freehold house, sold at £715,000 on the 15th July 2025.
Read more about house prices in NW7.
- Sold Jul 2025£715,000 | 4 Bed House18, Sefton Avenue, London, NW7 3QD18, Sefton Avenue, London, NW7 3QD
- Sold Mar 2022£881,500 | 4 Bed House29, Sefton Avenue, London, NW7 3QB29, Sefton Avenue, London, NW7 3QB
- Sold Mar 2021£775,000 | 4 Bed House49, Sefton Avenue, London, NW7 3QE49, Sefton Avenue, London, NW7 3QE
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 17, Sefton Avenue as the 35th largest and the 27th most expensive of the 71 addresses on Sefton Avenue, London, NW7.
Against the NW7 postcode district average, it is £126k more expensive than the typical property.
More reading links
Schools Nearby
- Deansbrook Infant School200 m away
- Deansbrook Junior School200 m away
- Mathilda Marks-Kennedy Jewish Primary School400 m away
- Mill Hill County High School1.8 km away
- Saracens High School1.8 km away
- Copthall School2.0 km away
More reading links
Public Transport Nearby
- Mill Hill Broadway|800 m away
- Edgware|1.1 km away
- Burnt Oak|1.4 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
