Our Data Sources
Flat E, 30, Belsize Square has 21 entries in the Land Registry , most recently in June 2018 and a single entry in the EPC database dated December 2022.
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 E, 30, Belsize Square would be worth £634,328, with a potential rental value of £2,690 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £561,833, with a rental value of £2,383 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat E, 30, Belsize Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Dec 2022.
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 E, 30, Belsize Square last changed hands on 18th June 2018, selling for £512,500. 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 dropped by 11.5% since June 2018.
- Sold Jun 2018£512,500
- Sold Apr 1998£137,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 58 sales of comparable properties within 270 metres of Flat E, 30, Belsize Square across the last 2 years.
Most recently, 18E , Belsize Park, London, NW3 4DU, a leasehold flat, sold at £725,000 on the 4th July 2025.
Read more about house prices in NW3.
- Sold Jul 2025£725,000 | 2 Bed Flat18E , Belsize Park, London, NW3 4DU18E , Belsize Park, London, NW3 4DU
- Sold Sep 2024£625,000 | 2 Bed Flat19A, Belsize Park, London, NW3 4DU19A, Belsize Park, London, NW3 4DU
- Sold Sep 2023£780,000 | 2 Bed FlatFlat 5, 28, Belsize Park Gardens, London, NW3 4LHFlat 5, 28, Belsize Park Gardens, London, NW3 4LH
•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 270 metres of Flat E, 30, Belsize Square 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 E, 30, Belsize Square as the 187th largest and the 207th most expensive of the 264 addresses on Belsize Square, London, NW3.
Against the NW3 postcode district average, it is £717k less expensive than the typical property.
More reading links
Schools Nearby
- Holy Trinity CofE Primary School, NW3600 m away
- Rosary Catholic Primary School600 m away
- St Paul's Church of England Primary School800 m away
- The UCL Academy600 m away
- Harris Academy St John's Wood1.1 km away
- Haverstock School1.2 km away
More reading links
Public Transport Nearby
- Belsize Park|500 m away
- Swiss Cottage|500 m away
- Finchley Road|700 m 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.












