N21 3AS is a residential postcode situated on Barrowell Green, London, N21 with 31 addresses.
It ranks as the 432nd largest and 190th most expensive of the 520 postcodes in the N21 area. The dominant property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 31 properties: 27 houses, 2 flats and 2 other properties.
N21 3AS is a residential postcode situated on Barrowell Green, London, N21 with 31 addresses.
It ranks as the 432nd largest and 190th most expensive of the 520 postcodes in the N21 area. The dominant property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 31 properties: 27 houses, 2 flats and 2 other properties.
Sale prices range from £297,030 for 2 bedroom Leasehold flats (688 ft2) to £689,517 for 3 bedroom freehold houses with a garden (1,184 ft2) .
Monthly rental prices range from £1,449 pcm for 2 bed flats to £2,830 pcm for 3 bed houses.
The gross rental yield is between 4.6% and 5.9%.
The average value per square foot is £516.
The last sale in N21 3AS sold for £630,000 on 17th October 2025. Since then prices are down an average of 0.4%.
The current average value in the postcode is £564,115.
The N21 3AS Sales Market has increased by 8.5% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 0.6% | £564,115 |
| April 2025 | -0.3% | £560,990 |
| April 2024 | -1.6% | £562,605 |
| April 2023 | 1.2% | £571,563 |
| April 2022 | 4.8% | £564,559 |
| April 2021 | 3% | £538,474 |
| April 2020 | 0.2% | £522,977 |
| April 2019 | -1.3% | £522,172 |
| April 2018 | -1.3% | £529,194 |
| April 2017 | 3.2% | £536,425 |
| April 2016 | 11.5% | £519,989 |
| April 2015 | 12.4% | £466,246 |
| April 2014 | 16.5% | £414,838 |
| April 2013 | 6.4% | £355,936 |
| April 2012 | -0.2% | £334,495 |
| April 2011 | 2.5% | £335,306 |
| April 2010 | 6% | £327,028 |
| April 2009 | -11.6% | £308,494 |
| April 2008 | 7.2% | £348,985 |
| April 2007 | 0% | £325,689 |
The current average rental value in the postcode is £2,458.
The N21 3AS Rental Market has increased by 35.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 3.4% | £2,458pcm |
| April 2025 | 3.5% | £2,377pcm |
| April 2024 | 7.8% | £2,297pcm |
| April 2023 | 12.6% | £2,131pcm |
| April 2022 | 5.1% | £1,893pcm |
| April 2021 | -1.2% | £1,802pcm |
| April 2020 | 2.1% | £1,823pcm |
| April 2019 | 0% | £1,786pcm |
| April 2018 | -0.4% | £1,787pcm |
| April 2017 | -0.8% | £1,793pcm |
| April 2016 | 4.5% | £1,808pcm |
| April 2015 | 7.1% | £1,731pcm |
| April 2014 | 5.2% | £1,617pcm |
| April 2013 | 4.5% | £1,537pcm |
| April 2012 | 4.7% | £1,472pcm |
| April 2011 | 3.8% | £1,405pcm |
| April 2010 | 4.6% | £1,353pcm |
| April 2009 | -3.6% | £1,294pcm |
| April 2008 | 7.5% | £1,342pcm |
| April 2007 | 0% | £1,249pcm |
The last sale was on 17th October 2025 for £630,000 and since then the market in the area has decreased by 0.4%. The postcode has had a total of 39 sales since 1995.
N21 3AS has seen 3 sales in the last three years and 2 sales in the last twelve months.
N21 3AS is the 432nd largest and the 190th most expensive postcode out of the 520 postcodes in the N21 area.
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The recent census recorded whether a resident owned or rented their home.
In the area around N21 3AS, 31.2% of property is privately owned outright and 30.5% is socially rented.
The graph below shows how this compares to Greater London and the rest of England & Wales.
The recent census recorded the highest level of education achieved by residents in the local area.
In the area around N21 3AS, 21.1% of residents are recorded as possessing school level qualifications and 36.1% as possessing degree level qualifications.
The graph below shows how this compares to Greater London and the rest of England & Wales.
The most recent census in 2021 recorded the age of all UK residents.
In the area around N21 3AS, the average age was 40 and the most common age was 37.
The graph below shows how this compares to Greater London and the rest of England & Wales
The recent census recorded whether a property was a primary or secondary home for the resident.
In the area around N21 3AS, 1.1% of property was a second home.
Comparison figures for Greater London and the rest of England & Wales are listed below.
The recent census recorded the number of cars registered in each household.
In the area around N21 3AS, there are an average of 1.0 cars per household.
See below for how this compares to Greater London and the rest of England & Wales.
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
According to data from the Environment Agency, the flood risk in this area is considered to be very low.