Our Data Sources
Flat 23, 37, Belsize Avenue has no records in the the Land Registry and a single entry in the EPC database dated June 2017.
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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If Flat 23, 37, Belsize Avenue is in very good condition we estimate a sale value of £288,872 and a rental value of £881 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £255,858 and a rental value of £780 per month.
Energy Efficiency
Flat 23, 37, Belsize Avenue has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Jun 2017.
The property is connected to mains gas and has fully double glazed windows. It is heated using Community scheme.
Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 575 property sales within 270 metres of Flat 23, 37, Belsize Avenue over the last 2 years.
The most recent example is 35G, Belsize Avenue, London, NW3 4BN, a leasehold flat which sold for £947,500 on the 2nd May 2025.
Read more about house prices in NW3.
- Sold May 2025£947,500 | 3 Bed Flat35G, Belsize Avenue, London, NW3 4BN35G, Belsize Avenue, London, NW3 4BN
- Sold Jun 2021£1,000,000 | 3 Bed Flat39B, Belsize Avenue, London, NW3 4BN39B, Belsize Avenue, London, NW3 4BN
- Sold Jul 2018£830,000 | 2 Bed Flat35C , Belsize Avenue, London, NW3 4BN35C , Belsize Avenue, London, NW3 4BN
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Belsize Avenue, London, NW3 has a total of 446 addresses. According to our analysis of all the public data, Flat 23, 37, Belsize Avenue is the 408th largest and the 408th most expensive property on the street.
When compared to the postcode district it is £1.046m less expensive than the average property in NW3.
More reading links
Schools Nearby
- Rosary Catholic Primary School200 m away
- Fitzjohn's Primary School600 m away
- Fleet Primary School700 m away
- The UCL Academy1.0 km away
- Haverstock School1.2 km away
- William Ellis School1.5 km away
More reading links
Public Transport Nearby
- Belsize Park|300 m away
- Hampstead Heath|600 m away
- Finchley Road|900 m away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












