Our Data Sources
18, Sefton Avenue has a single entry in the Land Registry from July 2025 and a single entry in the EPC database dated August 2024.
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 18, Sefton Avenue would be worth £782,558, with a potential rental value of £3,587 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £693,123, with a rental value of £3,177 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
18, Sefton Avenue occupies a 406 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 8th largest.
Energy Efficiency
18, Sefton Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Aug 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
18, Sefton Avenue last changed hands on 15th July 2025, selling for £715,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 0.1% since July 2025.
- Sold Jul 2025£715,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 130 sales of comparable properties within 490 metres of 18, 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 Mar 2022£750,000 | 4 Bed House3, Church Close, Edgware, HA8 9NS3, Church Close, Edgware, HA8 9NS
- 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.
More reading links
Location Comparison
Our analysis of the public data ranks 18, Sefton Avenue as the 43rd largest and the 44th most expensive of the 71 addresses on Sefton Avenue, London, NW7.
Against the NW7 postcode district average, it is £40k more expensive than the typical property.
More reading links
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.
