Flat 5, 21
Flat 5, 21
Description & Estimates
Flat 5, 21, Belsize Avenue is recorded publicly as a period leasehold apartment across 678 ft2 of internal area.
Locally, apartments of this size normally have 2 bedrooms.
Our estimate of the sale value of Flat 5, 21, Belsize Avenue is £624,470 and its rental estimate is £2,878 per month, given the available information and assuming reasonable condition.
21, Belsize Avenue is a residential building on Belsize Avenue, London, NW3 and falls within the NW3 postal district and the London Borough of Camden.
Our Data Sources
Flat 5, 21, Belsize Avenue has 2 entries in the Land Registry , most recently in January 2021 and a single entry in the EPC database dated February 2020.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Flat 5, 21, Belsize Avenue, we estimate a market value of £655,694 and a rental value of £3,022 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £580,757 and £2,677 per month respectively.
Recent Market Change
Over the last year, Flat 5, 21, Belsize Avenue has seen its estimated sale value decline by £4,926 (0.8%) and its estimated rental value climb by £205 per month (7.1%). This results in an estimated gross rental yield of 5.5%.
Energy Efficiency
Flat 5, 21, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Feb 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of Flat 5, 21, Belsize Avenue completed on 22nd January 2021 at £622,300 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 the property has sold twice.
Values of comparable properties have dropped by 9.9% over the period since January 2021.
- Sold Jan 2021£622,300
- Sold Aug 2010£435,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to Flat 5, 21, Belsize Avenue have sold within a radius of 270 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th July 2025, was 18E , Belsize Park, London, NW3 4DU, a leasehold flat which sold for £725,000.
Read more about house prices in NW3.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 446 addresses on Belsize Avenue, London, NW3, Flat 5, 21, Belsize Avenue comes out as the 238th largest and the 246th most expensive in our analysis of the public data.
It is also £700k less expensive than the average property across the NW3 district.
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Schools Nearby
- 400mRosary Catholic Primary School
- 600mFitzjohn's Primary School
- 600mHoly Trinity CofE Primary School, NW3
- 900mThe UCL Academy
- 1.3kmHaverstock School
- 1.4kmHarris Academy St John's Wood
More reading links
Public Transport Nearby
From Flat 5, 21, Belsize Avenue, the nearest station is Belsize Park, 400 metres away.
- 400mBelsize Park
- 700mFinchley Road
- 700mHampstead Heath
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
