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3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL

How much is 3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL worth?

Estimated value — November 2026

£640,000

Likely range £485,000 – £814,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale February 1999

50%

confidence

Medium

Typically within 13% of the sale price

Property details

Flat / Maisonette

Belsize Avenue · London · NW3 4BL

Address

District
Camden
County
Greater London
See house prices in NW3 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£200k£400k£600k£800k£1m20002002200420062008201020122014201620182020202220242026£640,000

Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from a recorded sale, and today it matches the likely range above.

View as a table
Modelled value at the end of each year, with any recorded sales
YearModelled valueLikely range
2000£218,840£189,345 – £256,318
2001£251,165£214,983 – £292,524
2002£300,999£254,634 – £351,515
2003£319,420£267,217 – £376,187
2004£335,987£278,054 – £398,602
2005£349,591£286,897 – £415,634
2006£385,473£314,033 – £459,464
2007£436,605£352,603 – £522,524
2008£368,163£294,270 – £443,625
2009£387,737£307,219 – £469,429
2010£407,321£320,098 – £496,842
2011£418,071£327,931 – £512,658
2012£448,532£350,644 – £553,846
2013£508,870£396,909 – £633,302
2014£576,759£448,869 – £719,691
2015£633,650£539,713 – £739,102
2016£665,681£561,133 – £783,045
2017£667,420£556,721 – £791,689
2018£655,184£540,744 – £783,652
2019£659,051£538,131 – £794,793
2020£662,277£534,933 – £805,231
2021£682,625£545,357 – £836,720
2022£696,966£550,676 – £861,189
2023£670,955£524,215 – £835,682
2024£671,191£518,489 – £842,612
2025£647,004£494,106 – £818,644
2026£640,000£485,000 – £814,000

Sale history

1999Sold
£153,500
2026Today — estimated
+317%£640,000

Mortgage calculator

£3,435

Estimated monthly repayment

£576,000

Loan amount

£660,570

Total interest

£1,236,570

Total repayable

A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.

Related properties

About this property

3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL is a flat on Belsize Avenue in London. Stede's estimated value for November 2026 is £640,000. Four in five similar homes sold within their likely range when tested; for this property that range is £485,000 to £814,000. It combines its own last sale brought up to date with the House Price Index (75%) and recent sales of 5 similar homes in the same postcode (25%). The confidence score is 50 out of 100 (medium): estimates like this one are typically within 13% of the eventual sale price.

It last sold in February 1999 for £153,500. The current estimate is 317% higher than that price. The current owner has held it for about 27 years.

The modelled value is down 4% over the past year and down 7% over the past five years.

Among 10 nearby properties Stede tracks in the NW3 area, estimated values run from £581,000 to £695,000. This flat's £640,000 sits toward the upper end of that range.

Common questions

How much is 3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL worth?

Stede estimates 3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL is worth £640,000 as of November 2026, within a likely range of £485,000 to £814,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.

When did 3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL last sell?

It last sold in February 1999 for £153,500.

What type of property is 3 Flat 2, Belsize Avenue, London, Camden, Greater London, NW3 4BL?

It is recorded as a Flat / Maisonette on Belsize Avenue in the NW3 postcode area.

How reliable is this estimate?

The confidence score is 50 out of 100 (medium). Tested against real sales of similar homes, estimates like this one are typically within 13% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.

How does Stede calculate this estimate?

It combines its own last sale brought up to date with the House Price Index (75%) and recent sales of 5 similar homes in the same postcode (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.

How we got this figure

We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 1,742 real sales of similar homes.

  • Its sale in February 1999, brought up to today with the House Price Index£618,61075%
  • 5 similar homes sold recently in the same postcode£705,49625%

Estimate £640,000, likely £485,000 – £814,000

Read the full methodology and data sources →