Our Data Sources
Flat 1, 26, Belsize Avenue has no records in the the Land Registry and a single entry in the EPC database dated November 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate Flat 1, 26, Belsize Avenue would be worth £1,091,244, with a potential rental value of £4,379 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £966,531, with a rental value of £3,879 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, 26, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Nov 2021.
The property is connected to mains gas and has partial double glazing. It is heated using Community scheme.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 50 sales of comparable properties within 260 metres of Flat 1, 26, Belsize Avenue across the last 2 years.
Most recently, 44A, Belsize Square, London, NW3 4HN, a leasehold flat, sold at £1,040,000 on the 27th August 2025.
Read more about house prices in NW3.
- Sold Aug 2025£1,040,000 | 3 Bed Flat44A, Belsize Square, London, NW3 4HN44A, Belsize Square, London, NW3 4HN
- Sold Jun 2025£1,150,000 | 3 Bed FlatFlat 4, 28, Belsize Park Gardens, London, NW3 4LHFlat 4, 28, Belsize Park Gardens, London, NW3 4LH
- Sold Jan 2025£1,250,000 | 3 Bed Flat43D , Belsize Square, London, NW3 4HN43D , Belsize Square, London, NW3 4HN
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Properties Let Nearby
Agents in our network have reported 2 lettings within 260 metres of Flat 1, 26, Belsize Avenue across the last 2 years.
The newest of these is 3B , Lancaster Drive, London, NW3 4EY, a leasehold flat let by Fine Living in February 2025.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Our analysis of the public data ranks Flat 1, 26, Belsize Avenue as the 76th largest and the 75th most expensive of the 446 addresses on Belsize Avenue, London, NW3.
Against the NW3 postcode district average, it is £282k less expensive than the typical property.
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Schools Nearby
- Rosary Catholic Primary School400 m away
- Holy Trinity CofE Primary School, NW3600 m away
- Fitzjohn's Primary School600 m away
- The UCL Academy800 m away
- Haverstock School1.2 km away
- Harris Academy St John's Wood1.3 km away
More reading links
Public Transport Nearby
- Belsize Park|400 m away
- Swiss Cottage|700 m away
- Finchley Road|700 m 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.
