Cosgrove Close - N21 3BG
Key Postcode Insights
N21 3BG is a residential postcode situated on Cosgrove Close, London, N21 with 32 addresses.
It ranks as the 456th largest and 17th most expensive of the 519 postcodes in the N21 area. The most common property type is a modern flat built after 1980.
The postcode contains a total of 32 properties: 32 flats.
- Ave. Sale Price
- £272,927
- 10 Year change
- down 3.1%
- Ave. Rental Price
- £1,209pcm
- 10 Year change
- up 26.8%
- Ave. £ per ft²
- £621/ft²
- Ave. Gross Yield
- 5.3%/year/yr
Key Postcode Insights
N21 3BG is a residential postcode situated on Cosgrove Close, London, N21 with 32 addresses.
It ranks as the 456th largest and 17th most expensive of the 519 postcodes in the N21 area. The most common property type is a modern flat built after 1980.
The postcode contains a total of 32 properties: 32 flats.
- Ave. Sale Price
- £272,927
- 10 Year change
- down 3.1%
- Ave. Rental Price
- £1,209pcm
- 10 Year change
- up 26.8%
- Ave. £ per ft²
- £621/ft²
- Ave. Gross Yield
- 5.3%/year/yr
Explore Propertiesin N21 3BG
- 1 Cosgrove Close
2 Bed Flat
- 3 Cosgrove Close
Flat
- 5 Cosgrove Close
Studio Modern Flat
- 7 Cosgrove Close
1 Bed Flat
- 9 Cosgrove Close
Flat
Sales Market Trends
The last sale in N21 3BG sold for £310,000 on 15th December 2025. Since then prices are down an average of 0.3%.
The current average value in the postcode is £272,927.
The N21 3BG Sales Market has decreased by 3.1% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -1.5% | £272,927 |
| June 2025 | -1% | £277,007 |
| June 2024 | -1% | £279,841 |
| June 2023 | -0.1% | £282,703 |
| June 2022 | 3.8% | £283,041 |
| June 2021 | 0.9% | £272,777 |
| June 2020 | 0.2% | £270,383 |
| June 2019 | -1.1% | £269,751 |
| June 2018 | -2.3% | £272,822 |
| June 2017 | -0.9% | £279,220 |
| June 2016 | 12% | £281,791 |
| June 2015 | 12.8% | £251,609 |
| June 2014 | 17.7% | £223,151 |
| June 2013 | 5.2% | £189,664 |
| June 2012 | -0.5% | £180,326 |
| June 2011 | 0.2% | £181,250 |
| June 2010 | 6% | £180,979 |
| June 2009 | -9.7% | £170,762 |
| June 2008 | 2.9% | £189,166 |
| June 2007 | 0% | £183,771 |
Rental Market Trends
The current average rental value in the postcode is £1,209.
The N21 3BG Rental Market has increased by 26.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 3.8% | £1,209pcm |
| June 2025 | 2.5% | £1,164pcm |
| June 2024 | 6.3% | £1,136pcm |
| June 2023 | 12.3% | £1,068pcm |
| June 2022 | 5.1% | £951pcm |
| June 2021 | -3.8% | £904pcm |
| June 2020 | 2.2% | £941pcm |
| June 2019 | 0.1% | £921pcm |
| June 2018 | -0.8% | £919pcm |
| June 2017 | -2.8% | £927pcm |
| June 2016 | 4.5% | £954pcm |
| June 2015 | 7.6% | £913pcm |
| June 2014 | 5.2% | £848pcm |
| June 2013 | 3.3% | £807pcm |
| June 2012 | 2.6% | £781pcm |
| June 2011 | 2.7% | £761pcm |
| June 2010 | 3.7% | £741pcm |
| June 2009 | -3.1% | £715pcm |
| June 2008 | 6.4% | £737pcm |
| June 2007 | 0% | £693pcm |
Sales History
The last sale was on 15th December 2025 for £310,000 and since then the market in the area has decreased by 0.3%. The postcode has had a total of 64 sales since 1995.
N21 3BG has seen 2 sales in the last three years and 1 sale in the last twelve months.
- Sold Dec 2025£310,000 | 1 Bed Flat33, Cosgrove Close, London, N21 3BG33, Cosgrove Close, London, N21 3BG
- Sold Jan 2023£340,000 | 2 Bed Flat53, Cosgrove Close, London, N21 3BG53, Cosgrove Close, London, N21 3BG
- Sold Dec 2022£262,500 | 1 Bed Flat51, Cosgrove Close, London, N21 3BG51, Cosgrove Close, London, N21 3BG
- Sold Sep 2022£195,000 | 1 Bed Flat61, Cosgrove Close, London, N21 3BG61, Cosgrove Close, London, N21 3BG
- Sold Jun 2022£203,000 | 1 Bed Flat59, Cosgrove Close, London, N21 3BG59, Cosgrove Close, London, N21 3BG
Nearby Postcodes
N21 3BG is the 456th largest and the 17th most expensive postcode out of the 519 postcodes in the N21 area.
- N21 3BQ, Cosgrove Close, London, N21N21 3BQ11 Addresses|37 m away
- N21 3AY, Barrowell Green, London, N21N21 3AY32 Addresses|82 m away
- N21 3AU, Barrowell Green, London, N21N21 3AU31 Addresses|92 m away
- N21 3BH, Cosgrove Close, London, N21N21 3BH71 Addresses|105 m away
- N21 3AS, Barrowell Green, London, N21N21 3AS29 Addresses|140 m away
Property Types
- 21 modern flats built after 1980
- 3 mid-century flats built between 1936 and 1979
- 2 flats of an unknown age
- 6 other addresses of unknown type
- modern flat (21)
- mid-century flat (3)
- flat (2)
- Unknown (6)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 24 properties.
- The most common rating is C.
- A (0)
- E (3)
- B (0)
- F (0)
- C (13)
- G (0)
- D (8)
- No EPC (8)
Top 3 Most Expensive Sales
- Sold Jun 2021£580,000 | 4 Bed House18, Cosgrove Close, London, N21 3BQ18, Cosgrove Close, London, N21 3BQ
- Sold Feb 2021£540,000 | 4 Bed House16, Cosgrove Close, London, N21 3BQ16, Cosgrove Close, London, N21 3BQ
- Sold Feb 2025£535,000 | 4 Bed House14, Cosgrove Close, London, N21 3BQ14, Cosgrove Close, London, N21 3BQ
Schools Nearby
- Highfield Primary School300 m away
- Firs Farm Primary School800 m away
- St Paul's CofE Primary School1.0 km away
- Winchmore School300 m away
- Lift Aylward1.3 km away
- The Latymer School1.4 km away
More reading links
Public Transport Nearby
The closest station to N21 3BG is Winchmore Hill station, which is 900 metres away.
- Winchmore Hill|900 m away
- Palmers Green|1.4 km away
- Grange Park|1.8 km away
- Silver Street|2.0 km away
