Our Data Sources
Flat 5, 51, Belsize Avenue has 31 entries in the Land Registry , most recently in November 2013 and a single entry in the EPC database dated September 2011.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate Flat 5, 51, Belsize Avenue would be worth £1,355,565, with a potential rental value of £4,697 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,200,643, with a rental value of £4,160 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 5, 51, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Sep 2011.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
Flat 5, 51, Belsize Avenue last changed hands on 29th November 2013, selling for £925,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has dropped by 9.5% since November 2013.
- Sold Nov 2013£925,000
- Sold May 2004£439,000
- Sold Aug 2000£285,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 290 metres of Flat 5, 51, Belsize Avenue across the last 2 years.
Most recently, Flat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QE, a leasehold flat, sold at £1,255,555 on the 18th February 2026.
Read more about house prices in NW3.
- Sold Feb 2026£1,255,555 | 3 Bed FlatFlat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QEFlat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QE
- Sold Oct 2024£1,350,000 | 3 Bed FlatFlat 2, Rosslyn Heights 2, Belsize Lane, London, NW3 5ABFlat 2, Rosslyn Heights 2, Belsize Lane, London, NW3 5AB
- Sold Apr 2024£1,200,000 | 3 Bed FlatFlat 2, 31, Belsize Avenue, London, NW3 4BLFlat 2, 31, Belsize Avenue, London, NW3 4BL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 5, 51, Belsize Avenue as the 60th largest and the 55th most expensive of the 446 addresses on Belsize Avenue, London, NW3.
Against the NW3 postcode district average, it is £33k less expensive than the typical property.
More reading links
Schools Nearby
- 200mRosary Catholic Primary School
- 600mFitzjohn's Primary School
- 700mFleet Primary School
- 1.0kmThe UCL Academy
- 1.2kmHaverstock School
- 1.5kmWilliam Ellis School
More reading links
Public Transport Nearby
- 300mBelsize Park
- 600mHampstead Heath
- 900mFinchley Road
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.












