Our Data Sources
15, Blackwell Close has 2 entries in the Land Registry , most recently in April 2009 and a single entry in the EPC database dated May 2019.
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 15, Blackwell Close would be worth £399,717, with a potential rental value of £1,728 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £354,035, with a rental value of £1,531 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
15, Blackwell Close has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 May 2019.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Room heaters, electric.
Sold Prices
15, Blackwell Close last changed hands on 30th April 2009, selling for £220,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 65.0% since April 2009.
- Sold Apr 2009£220,000
- Sold Mar 2007£250,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 530 metres of 15, Blackwell Close across the last 2 years.
Most recently, 40, Blackwell Close, London, N21 1UL, a leasehold flat, sold at £345,000 on the 9th December 2025.
Read more about house prices in N21.
- Sold Dec 2025£345,000 | 2 Bed Flat40, Blackwell Close, London, N21 1UL40, Blackwell Close, London, N21 1UL
- Sold Dec 2024£342,000 | 2 Bed Flat19, Blackwell Close, London, N21 1UL19, Blackwell Close, London, N21 1UL
- Sold Aug 2024£410,000 | 2 Bed FlatFlat 3, Barnard Court 82, Pennington Drive, London, N21 1AFFlat 3, Barnard Court 82, Pennington Drive, London, N21 1AF
•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 15, Blackwell Close as the 17th largest and the 17th most expensive of the 59 addresses on Blackwell Close, London, N21.
Against the N21 postcode district average, it is £351k less expensive than the typical property.
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Schools Nearby
- 300mEversley Primary School
- 600mGrange Park Primary School
- 800mMerryhills Primary School
- 600mHighlands School
- 1.7kmSouthgate School
- 2.1kmAshmole Academy
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Public Transport Nearby
- 1.1kmOakwood
- 1.3kmGrange Park
- 1.7kmWinchmore Hill
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.












