21 Belsize AvenueHouse Prices / London, Camden, Belsize Avenue, NW3 4BL
Key Building Insights
21 Belsize Avenue is a residential building situated on Belsize Avenue, London, NW3 with 6 addresses.
It ranks as the 2714th largest and 1689th most expensive of the 3,591 buildings in the NW3 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 6 properties: 6 flats.
- Flats
Key Building Insights
21 Belsize Avenue is a residential building situated on Belsize Avenue, London, NW3 with 6 addresses.
It ranks as the 2714th largest and 1689th most expensive of the 3,591 buildings in the NW3 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 6 properties: 6 flats.
- Flats
House Pricesin 21 Belsize Avenue
Sale prices range from £536,565 for 2 bedroom leasehold flats (548 ft2) to £1,894,218 for 4 bedroom leasehold flats with a garden (2,960 ft2) .
Monthly rental prices range from £2,514 pcm for 2 bed flats to £8,175 pcm for 4 bed flats.
The gross rental yield is between 4.8% and 5.6%.
The average value per square foot is £911.
Sales Market Trendsin 21 Belsize Avenue
The last sale in 21 Belsize Avenue sold for £550,000 on 19th March 2025. Since then prices are down an average of 1.0%.
The current average value in the building is £920,633.
The 21 Belsize Avenue Sales Market has decreased by 7.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | -1.3% | £920,633 |
| May 2025 | -1.8% | £932,553 |
| May 2024 | -1.3% | £949,174 |
| May 2023 | 0.9% | £961,404 |
| May 2022 | 3.2% | £953,128 |
| May 2021 | -0.7% | £923,760 |
| May 2020 | 0.8% | £930,203 |
| May 2019 | -0.1% | £922,945 |
| May 2018 | -3.8% | £923,967 |
| May 2017 | -3.4% | £960,440 |
| May 2016 | 1% | £994,636 |
| May 2015 | 3.7% | £984,694 |
| May 2014 | 14.6% | £949,909 |
| May 2013 | 7.5% | £829,006 |
| May 2012 | 10.6% | £770,897 |
| May 2011 | 5% | £697,092 |
| May 2010 | 19.9% | £664,001 |
| May 2009 | -13.3% | £554,002 |
| May 2008 | 15% | £639,238 |
| May 2007 | 0% | £555,711 |
Rental Market Trendsin 21 Belsize Avenue
The current average rental value in the building is £4,051.
The 21 Belsize Avenue Rental Market has increased by 39.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 6.8% | £4,051pcm |
| May 2025 | 1.7% | £3,792pcm |
| May 2024 | 3.6% | £3,729pcm |
| May 2023 | 11.1% | £3,598pcm |
| May 2022 | 17.7% | £3,238pcm |
| May 2021 | -8.9% | £2,750pcm |
| May 2020 | 3% | £3,018pcm |
| May 2019 | 3.3% | £2,931pcm |
| May 2018 | -0.3% | £2,836pcm |
| May 2017 | -2.2% | £2,845pcm |
| May 2016 | -1.2% | £2,910pcm |
| May 2015 | 3.2% | £2,944pcm |
| May 2014 | -0.5% | £2,853pcm |
| May 2013 | -1.6% | £2,868pcm |
| May 2012 | 3.8% | £2,915pcm |
| May 2011 | 11.1% | £2,808pcm |
| May 2010 | 9.5% | £2,526pcm |
| May 2009 | -13% | £2,307pcm |
| May 2008 | 11.7% | £2,650pcm |
| May 2007 | 0% | £2,372pcm |
Explore Propertiesin 21, Belsize Avenue, London, NW3 4BL
- Flat 1, 21, Belsize Avenue, London, NW3 4BL4 bed period flat
- Flat 2, 21, Belsize Avenue, London, NW3 4BL3 bed period flat
- Flat 3, 21, Belsize Avenue, London, NW3 4BL2 bed period flat
- Flat 4, 21, Belsize Avenue, London, NW3 4BL
- Flat 5, 21, Belsize Avenue, London, NW3 4BL2 bed period flat
- 21A, Belsize Avenue, London, NW3 4BL
Sales Historyin 21, Belsize Avenue, London, NW3 4BL
The last sale was on 19th March 2025 for £550,000 and since then the market in the area has decreased by 1.0%. The building has had a total of 9 sales since 1995.
21, Belsize Avenue, London, NW3 4BL has seen 1 sale in the last three years and no sales in the last twelve months.
Property Typesin 21 Belsize Avenue
- 4 period flats built between 1800 and 1911
- 2 other addresses of unknown type
- period flat (4)
- Unknown (2)
Energy Efficiencyof properties in 21 Belsize Avenue
- Energy Performance Certificate (EPC) surveys conducted for 4 properties.
- The dominant rating is D.
- A (0)
- E (0)
- B (0)
- F (0)
- C (1)
- G (0)
- D (3)
- No EPC (2)
Top 3 Most Expensive Saleson Belsize Avenue, London, NW3
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
The closest station to 21, Belsize Avenue, London, NW3 4BL is Belsize Park station, which is 400 metres away.
- 400mBelsize Park
- 700mFinchley Road
- 700mHampstead Heath
- 700mSwiss Cottage
