Belsize Avenue - NW3 4AU
Key Postcode Insights
NW3 4AU is a residential postcode situated on Belsize Avenue, London, NW3 with 57 addresses.
It ranks as the 1103rd largest and 317th most expensive of the 1,182 postcodes in the NW3 area. The most common property type is a period flat built between 1800 and 1911.
The postcode contains a total of 57 properties: 7 houses and 50 flats.
- Ave. Sale Price
- £861,276
- 10 Year change
- down 6.5%
- Ave. Rental Price
- £3,386pcm
- 10 Year change
- up 42.9%
- Ave. £ per ft²
- £1,127/ft²
- Ave. Gross Yield
- 4.7%/year/yr
Key Postcode Insights
NW3 4AU is a residential postcode situated on Belsize Avenue, London, NW3 with 57 addresses.
It ranks as the 1103rd largest and 317th most expensive of the 1,182 postcodes in the NW3 area. The most common property type is a period flat built between 1800 and 1911.
The postcode contains a total of 57 properties: 7 houses and 50 flats.
- Ave. Sale Price
- £861,276
- 10 Year change
- down 6.5%
- Ave. Rental Price
- £3,386pcm
- 10 Year change
- up 42.9%
- Ave. £ per ft²
- £1,127/ft²
- Ave. Gross Yield
- 4.7%/year/yr
Explore Propertiesin NW3 4AU
- Howard House
Period Building | 10 Units
- 2 Belsize Avenue
4 Bed Mid-century House
- 4 Belsize Avenue
4 Bed Mid-century House
- 6 Belsize Avenue
4 Bed Mid-century House
- 8 Belsize Avenue
4 Bed Mid-century House
Sales Market Trends
The last sale in NW3 4AU sold for £545,000 on 5th December 2025. Since then prices are up an average of 0.5%.
The current average value in the postcode is £861,276.
The NW3 4AU Sales Market has decreased by 6.5% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -2.3% | £861,276 |
| June 2025 | -0.3% | £881,591 |
| June 2024 | -1.1% | £884,151 |
| June 2023 | 0.8% | £894,295 |
| June 2022 | 2.2% | £887,333 |
| June 2021 | 0.7% | £868,092 |
| June 2020 | 0.2% | £861,956 |
| June 2019 | -0.1% | £859,824 |
| June 2018 | -3% | £860,996 |
| June 2017 | -3.7% | £887,824 |
| June 2016 | 2.4% | £921,537 |
| June 2015 | 3.3% | £899,690 |
| June 2014 | 15.3% | £870,666 |
| June 2013 | 7.1% | £755,090 |
| June 2012 | 10.2% | £704,998 |
| June 2011 | 4.8% | £640,008 |
| June 2010 | 20.2% | £610,548 |
| June 2009 | -11.8% | £507,902 |
| June 2008 | 7.8% | £575,665 |
| June 2007 | 0% | £534,117 |
Rental Market Trends
The current average rental value in the postcode is £3,386.
The NW3 4AU Rental Market has increased by 42.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 6.6% | £3,386pcm |
| June 2025 | 3.2% | £3,176pcm |
| June 2024 | 3.8% | £3,078pcm |
| June 2023 | 10.2% | £2,966pcm |
| June 2022 | 17.5% | £2,692pcm |
| June 2021 | -6.1% | £2,291pcm |
| June 2020 | 0.6% | £2,440pcm |
| June 2019 | 3.6% | £2,425pcm |
| June 2018 | 0.3% | £2,339pcm |
| June 2017 | -1.5% | £2,332pcm |
| June 2016 | -0.1% | £2,368pcm |
| June 2015 | 3.2% | £2,371pcm |
| June 2014 | 0.5% | £2,297pcm |
| June 2013 | -2.1% | £2,285pcm |
| June 2012 | 2.8% | £2,334pcm |
| June 2011 | 10.6% | £2,271pcm |
| June 2010 | 10.4% | £2,054pcm |
| June 2009 | -12.5% | £1,861pcm |
| June 2008 | 7.2% | £2,128pcm |
| June 2007 | 0% | £1,985pcm |
Sales History
The last sale was on 5th December 2025 for £545,000 and since then the market in the area has increased by 0.5%. The postcode has had a total of 46 sales since 1995.
NW3 4AU has seen 1 sale in the last three years and 1 sale in the last twelve months.
- Sold Dec 2025£545,000 | 1 Bed FlatFlat 2, 22, Belsize Avenue, London, NW3 4AUFlat 2, 22, Belsize Avenue, London, NW3 4AU
- Sold Nov 2022£530,000 | 1 Bed FlatFlat 4, 26, Belsize Avenue, London, NW3 4AUFlat 4, 26, Belsize Avenue, London, NW3 4AU
- Sold Aug 2022£1,510,000 | 3 Bed FlatFlat 1, 26, Belsize Avenue, London, NW3 4AUFlat 1, 26, Belsize Avenue, London, NW3 4AU
- Sold Jun 2021£531,000 | 1 Bed FlatFlat 6, 26, Belsize Avenue, London, NW3 4AUFlat 6, 26, Belsize Avenue, London, NW3 4AU
- Sold May 2018£550,000 | 1 Bed FlatFlat 12, 28, Belsize Avenue, London, NW3 4AUFlat 12, 28, Belsize Avenue, London, NW3 4AU
Nearby Postcodes
NW3 4AU is the 1103rd largest and the 317th most expensive postcode out of the 1,182 postcodes in the NW3 area.
- NW3 4AW, Glenilla Road, London, NW3NW3 4AW5 Addresses|49 m away
- NW3 4AT, Glenilla Road, London, NW3NW3 4AT5 Addresses|58 m away
- NW3 4BL, Belsize Avenue, London, NW3NW3 4BL113 Addresses|59 m away
- NW3 4AS, Glenilla Road, London, NW3NW3 4AS1 Addresses|78 m away
- NW3 4AJ, Glenilla Road, London, NW3NW3 4AJ25 Addresses|79 m away
Property Types
- 50 period flats built between 1800 and 1911
- 6 mid-century houses built between 1936 and 1979
- 1 house of an unknown age
- period flat (50)
- mid-century house (6)
- house (1)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 32 properties.
- The most common rating is D.
- A (0)
- E (1)
- B (0)
- F (0)
- C (12)
- G (0)
- D (19)
- No EPC (25)
Top 3 Most Expensive Sales
- Sold Feb 2014£4,500,000 | 6 Bed House48, Belsize Avenue, London, NW3 4AE48, Belsize Avenue, London, NW3 4AE
- Sold Dec 2008£4,350,000 | 6 Bed House61, Belsize Avenue, London, NW3 4BN61, Belsize Avenue, London, NW3 4BN
- Sold May 2022£3,845,000 | 4 Bed FlatFlat 1, 21, Belsize Avenue, London, NW3 4BLFlat 1, 21, Belsize Avenue, London, NW3 4BL
Schools Nearby
- Rosary Catholic Primary School400 m away
- Holy Trinity CofE Primary School, NW3600 m away
- Fitzjohn's Primary School600 m away
- The UCL Academy800 m away
- Haverstock School1.2 km away
- Harris Academy St John's Wood1.3 km away
More reading links
Public Transport Nearby
The closest station to NW3 4AU is Belsize Park station, which is 400 metres away.
- Belsize Park|400 m away
- Swiss Cottage|700 m away
- Finchley Road|700 m away
- Hampstead Heath|800 m away
