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Bricks&Logic is a trading name of Urban Markets Ltd
Company No. 11113204
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VAT No. GB 287 0845 68
Registered Address: 2 Leman St, London E1 8FA
N3 1SNHouse Prices / London, Barnet, St. Mary's Avenue
Last updated May 2026
Key Postcode Insights
N3 1SN is a residential postcode situated on St. Mary's Avenue, London, N3 with 64 addresses.
It ranks as the 556th largest and 416th most expensive of the 571 postcodes in the N3 area. The dominant property type is a period flat built between 1800 and 1911.
The postcode contains a total of 64 properties: 32 houses and 32 flats.
64
Properties
- Houses
- Flats
Key Postcode Insights
N3 1SN is a residential postcode situated on St. Mary's Avenue, London, N3 with 64 addresses.
It ranks as the 556th largest and 416th most expensive of the 571 postcodes in the N3 area. The dominant property type is a period flat built between 1800 and 1911.
The postcode contains a total of 64 properties: 32 houses and 32 flats.
64
Properties
- Houses
- Flats
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House Pricesin N3 1SN
Sale prices range from £230,813 for 1 bedroom leasehold flats (333 ft2) to £1,601,950 for 6 bedroom freehold houses with a garden (2,863 ft2) .
Monthly rental prices range from £1,203 pcm for 1 bed flats to £4,635 pcm for 6 bed houses.
The gross rental yield is between 3.2% and 6.3%.
The average value per square foot is £600.
Average Sale Value
£881,995
Average Rental Value
£2,962 pcm
Average Rental Yield
4.0% /year
Average Value Per Sqft
£600 /ft2
Sales Market Trendsin N3 1SN
The last sale in N3 1SN sold for £1,350,000 on 19th December 2025. Since then prices are down an average of 0.7%.
The current average value in the postcode is £881,995.
The N3 1SN Sales Market has decreased by 1.7% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | -2.1% | £881,995 |
| April 2025 | 0.8% | £900,761 |
| April 2024 | -2.3% | £893,196 |
| April 2023 | -0.9% | £914,049 |
| April 2022 | 4.4% | £922,173 |
| April 2021 | 1.6% | £883,477 |
| April 2020 | 0.8% | £869,941 |
| April 2019 | -0.3% | £863,308 |
| April 2018 | -2.8% | £865,597 |
| April 2017 | -0.8% | £890,470 |
| April 2016 | 8.9% | £897,550 |
| April 2015 | 8% | £824,546 |
| April 2014 | 15.6% | £763,663 |
| April 2013 | 3.9% | £660,655 |
| April 2012 | 9.1% | £636,077 |
| April 2011 | 5.7% | £582,764 |
| April 2010 | 7% | £551,336 |
| April 2009 | -9.9% | £515,189 |
| April 2008 | 6.7% | £571,980 |
| April 2007 | 0% | £535,910 |
Rental Market Trendsin N3 1SN
The current average rental value in the postcode is £2,962.
The N3 1SN Rental Market has increased by 31.6% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 3% | £2,962pcm |
| April 2025 | 4% | £2,877pcm |
| April 2024 | 5.4% | £2,766pcm |
| April 2023 | 12.7% | £2,624pcm |
| April 2022 | 7.3% | £2,328pcm |
| April 2021 | -1.2% | £2,169pcm |
| April 2020 | 2.4% | £2,195pcm |
| April 2019 | 0.6% | £2,144pcm |
| April 2018 | -0.8% | £2,131pcm |
| April 2017 | -4.5% | £2,149pcm |
| April 2016 | 2.4% | £2,250pcm |
| April 2015 | 5.7% | £2,198pcm |
| April 2014 | 1.4% | £2,079pcm |
| April 2013 | 5.6% | £2,050pcm |
| April 2012 | 6.7% | £1,941pcm |
| April 2011 | 6.9% | £1,819pcm |
| April 2010 | 1.4% | £1,702pcm |
| April 2009 | -5% | £1,679pcm |
| April 2008 | 7.8% | £1,767pcm |
| April 2007 | 0% | £1,639pcm |
Properties and Buildingsin N3 1SN, St. Mary's Avenue, London, N3
- Albany, St. Mary's Avenue, London, N3 1SN5 bed period house
- Belvin House, St. Mary's Avenue, London, N3 1SN
- Formentor, St. Mary's Avenue, London, N3 1SN4 bed mid-century house
- Gloralan Lodge, St. Mary's Avenue, London, N3 1SN
- Heathfield, St. Mary's Avenue, London, N3 1SN5 bed period house
- 1, St. Mary's Avenue, London, N3 Period building 4 units
- 2, St. Mary's Avenue, London, N3 1SN4 bed period house
- 3, St. Mary's Avenue, London, N3 Period building 3 units
- 4, St. Mary's Avenue, London, N3 1SN5 bed period house
- 5, St. Mary's Avenue, London, N3 Period building 2 units
- 6, St. Mary's Avenue, London, N3 1SN5 bed period house
- 7, St. Mary's Avenue, London, N3 Period building 3 units
- 8, St. Mary's Avenue, London, N3 1SN5 bed period house
- 10, St. Mary's Avenue, London, N3 1SN5 bed period house
- 11, St. Mary's Avenue, London, N3 1SN
- 12, St. Mary's Avenue, London, N3 Period building 3 units
- 13, St. Mary's Avenue, London, N3Building 6 units
- 14, St. Mary's Avenue, London, N3 Period building 2 units
- 15, St. Mary's Avenue, London, N3 Period building 7 units
- 16, St. Mary's Avenue, London, N3 Period building 3 units
- 17, St. Mary's Avenue, London, N3 1SN5 bed house
- 18, St. Mary's Avenue, London, N3 1SN
- 19, St. Mary's Avenue, London, N3 1SN5 bed period house
- 20, St. Mary's Avenue, London, N3 1SN
- 21, St. Mary's Avenue, London, N3 1SN4 bed period house
- 22, St. Mary's Avenue, London, N3 Mid-century building 3 units
- 23, St. Mary's Avenue, London, N3 1SN
- 24, St. Mary's Avenue, London, N3 1SN
- 25, St. Mary's Avenue, London, N3 1SN
- 26, St. Mary's Avenue, London, N3 1SN4 bed period house
- 27, St. Mary's Avenue, London, N3 1SN5 bed house
- 28, St. Mary's Avenue, London, N3 1SN5 bed period house
- 29, St. Mary's Avenue, London, N3 1SN5 bed period house
- 30, St. Mary's Avenue, London, N3 1SN5 bed period house
- 32, St. Mary's Avenue, London, N3 1SN
- 34, St. Mary's Avenue, London, N3 1SN5 bed period house
- 36, St. Mary's Avenue, London, N3 1SN
- 38, St. Mary's Avenue, London, N3 1SN4 bed period house
Sales Historyin N3 1SN
The last sale was on 19th December 2025 for £1,350,000 and since then the market in the area has decreased by 0.7%. The postcode has had a total of 72 sales since 1995.
N3 1SN has seen 2 sales in the last three years and 1 sale in the last twelve months.
Sold Dec 2025£1,350,000 | 5 Bed HouseSt. Mary's Avenue19, St. Mary's Avenue, London, N3 1SN
Sold Jun 2023£1,185,000 | 4 Bed HouseSt. Mary's Avenue38, St. Mary's Avenue, London, N3 1SN
Sold Aug 2021£396,000 | 2 Bed Flat1, St. Mary's AvenueFlat D, 1, St. Mary's Avenue, London, N3 1SN
Sold Mar 2021£875,000 | 5 Bed HouseSt. Mary's Avenue34, St. Mary's Avenue, London, N3 1SN
Sold Feb 2021£625,000 | 3 Bed FlatSt. Mary's Avenue3B, St. Mary's Avenue, London, N3 1SN
Sold Aug 2020£965,000 | 4 Bed HouseSt. Mary's Avenue38, St. Mary's Avenue, London, N3 1SN
Sold Aug 2019£800,000 | 4 Bed HouseSt. Mary's Avenue38, St. Mary's Avenue, London, N3 1SN
Sold Jul 2019£1,200,000 | 5 Bed HouseSt. Mary's Avenue22A, St. Mary's Avenue, London, N3 1SN
Sold Jan 2018£1,375,000 | 5 Bed HouseSt. Mary's AvenueHeathfield, St. Mary's Avenue, London, N3 1SN
Sold Oct 2017£390,000 | 2 Bed Flat13, St. Mary's AvenueFlat D, 13, St. Mary's Avenue, London, N3 1SN
Sold Feb 2017£1,125,000 | 4 Bed HouseSt. Mary's Avenue26, St. Mary's Avenue, London, N3 1SN
Sold Dec 2016£860,000 | 5 Bed HouseSt. Mary's Avenue22A, St. Mary's Avenue, London, N3 1SN
Sold May 2016£1,180,000 | 5 Bed HouseSt. Mary's AvenueHeathfield, St. Mary's Avenue, London, N3 1SN
Sold May 2016£556,200 | 3 Bed FlatSt. Mary's Avenue3B, St. Mary's Avenue, London, N3 1SN
Sold Jan 2016£1,140,000 | 4 Bed HouseSt. Mary's Avenue21, St. Mary's Avenue, London, N3 1SN
Sold Dec 2015£1,495,000 | 5 Bed HouseSt. Mary's Avenue8, St. Mary's Avenue, London, N3 1SN
Sold Jun 2015£1,170,000 | 4 Bed HouseSt. Mary's Avenue2, St. Mary's Avenue, London, N3 1SN
Sold Jul 2014£1,090,000 | 5 Bed HouseSt. Mary's Avenue30, St. Mary's Avenue, London, N3 1SN
Sold Aug 2013£950,000 | 5 Bed HouseSt. Mary's Avenue29, St. Mary's Avenue, London, N3 1SN
Sold Feb 2012£900,000 | 5 Bed HouseSt. Mary's Avenue27, St. Mary's Avenue, London, N3 1SN
Sold Dec 2011£165,000 | 1 Bed Flat15, St. Mary's AvenueFlat 5, 15, St. Mary's Avenue, London, N3 1SN
Sold Sep 2011£1,150,000 | 6 Bed HouseSt. Mary's Avenue12A, St. Mary's Avenue, London, N3 1SN
Sold Nov 2010£880,000 | 5 Bed HouseSt. Mary's Avenue17, St. Mary's Avenue, London, N3 1SN
Sold Oct 2010£1,000,000 | 6 Bed HouseSt. Mary's AvenueAlbany, St. Mary's Avenue, London, N3 1SN
Sold Jun 2010£340,000 | 3 Bed Flat1, St. Mary's AvenueFlat C, 1, St. Mary's Avenue, London, N3 1SN
Sold Nov 2007£327,000 | 3 Bed FlatSt. Mary's Avenue3B, St. Mary's Avenue, London, N3 1SN
Sold Nov 2007£685,000 | 4 Bed HouseSt. Mary's Avenue2, St. Mary's Avenue, London, N3 1SN
Sold Sep 2007£1,200,000 | 5 Bed HouseSt. Mary's Avenue8, St. Mary's Avenue, London, N3 1SN
Sold Apr 2007£250,000 | 3 Bed Flat15, St. Mary's AvenueFlat 4, 15, St. Mary's Avenue, London, N3 1SN
Sold Apr 2007£325,000 | 2 Bed Flat13, St. Mary's AvenueFlat C, 13, St. Mary's Avenue, London, N3 1SN
Sold Feb 2007£155,000 | 1 Bed Flat15, St. Mary's AvenueFlat 3, 15, St. Mary's Avenue, London, N3 1SN
Sold Nov 2006£270,000 | 2 Bed Flat15, St. Mary's AvenueFlat 2, 15, St. Mary's Avenue, London, N3 1SN
Sold Nov 2006£150,000 | 1 Bed Flat15, St. Mary's AvenueFlat 1, 15, St. Mary's Avenue, London, N3 1SN
Sold Sep 2006£369,950 | 3 Bed FlatSt. Mary's Avenue3, St. Mary's Avenue, London, N3 1SN
Sold Jun 2006£230,000 | 2 Bed Flat13, St. Mary's AvenueFlat C, 13, St. Mary's Avenue, London, N3 1SN
Sold Jun 2006£730,000 | 6 Bed HouseSt. Mary's AvenueAlbany, St. Mary's Avenue, London, N3 1SN
Sold Jan 2006£495,000 | 4 Bed HouseSt. Mary's Avenue2, St. Mary's Avenue, London, N3 1SN
Sold Jun 2005£372,500 | 3 Bed Flat7, St. Mary's AvenueFlat 2, 7, St. Mary's Avenue, London, N3 1SN
Sold Oct 2004£520,000 | 5 Bed HouseSt. Mary's Avenue8, St. Mary's Avenue, London, N3 1SN
Sold Jul 2004£196,500 | 2 Bed Flat1, St. Mary's AvenueFlat D, 1, St. Mary's Avenue, London, N3 1SN
Sold Jun 2004£687,500 | 4 Bed HouseSt. Mary's AvenueFormentor, St. Mary's Avenue, London, N3 1SN
Sold Jun 2004£263,000 | 3 Bed Flat1, St. Mary's AvenueFlat C, 1, St. Mary's Avenue, London, N3 1SN
Sold Jan 2004£322,000 | 3 Bed FlatSt. Mary's Avenue3, St. Mary's Avenue, London, N3 1SN
Sold Sep 2002£249,950 | 3 Bed Flat1, St. Mary's AvenueFlat C, 1, St. Mary's Avenue, London, N3 1SN
Sold Aug 2002£466,950 | 6 Bed HouseSt. Mary's Avenue10, St. Mary's Avenue, London, N3 1SN
Sold May 2002£199,950 | 2 Bed Flat1, St. Mary's AvenueFlat B, 1, St. Mary's Avenue, London, N3 1SN
Sold Mar 2002£598,000 | 6 Bed HouseSt. Mary's AvenueAlbany, St. Mary's Avenue, London, N3 1SN
Sold Dec 2001£229,950 | 3 Bed FlatSt. Mary's Avenue3B, St. Mary's Avenue, London, N3 1SN
Sold Oct 2001£499,950 | 4 Bed HouseSt. Mary's Avenue23, St. Mary's Avenue, London, N3 1SN
Sold Jul 2001£370,000 | 4 Bed HouseSt. Mary's Avenue23, St. Mary's Avenue, London, N3 1SN
Sold Jun 2001£151,000 | 3 Bed FlatSt. Mary's Avenue14, St. Mary's Avenue, London, N3 1SN
Sold Jun 2001£209,950 | 3 Bed FlatSt. Mary's Avenue3, St. Mary's Avenue, London, N3 1SN
Sold May 2001£140,000 | 2 Bed Flat1, St. Mary's AvenueFlat B, 1, St. Mary's Avenue, London, N3 1SN
Sold Feb 2001£410,000 | 4 Bed HouseSt. Mary's Avenue20, St. Mary's Avenue, London, N3 1SN
Sold Sep 2000£130,000 | 2 Bed Flat13, St. Mary's AvenueFlat D, 13, St. Mary's Avenue, London, N3 1SN
Sold Feb 2000£260,000 | 5 Bed HouseSt. Mary's Avenue22B, St. Mary's Avenue, London, N3 1SN
Sold Nov 1999£435,000 | 5 Bed HouseSt. Mary's Avenue4, St. Mary's Avenue, London, N3 1SN
Sold Nov 1999£99,950 | 2 Bed Flat1, St. Mary's AvenueFlat D, 1, St. Mary's Avenue, London, N3 1SN
Sold Aug 1999£125,000 | 2 Bed Flat13, St. Mary's AvenueFlat E, 13, St. Mary's Avenue, London, N3 1SN
Sold Jul 1999£150,000 | 2 Bed Flat7, St. Mary's AvenueFlat 1, 7, St. Mary's Avenue, London, N3 1SN
Sold Jul 1999£390,000 | 5 Bed HouseSt. Mary's Avenue28, St. Mary's Avenue, London, N3 1SN
Sold Aug 1998£129,500 | 3 Bed FlatSt. Mary's Avenue3, St. Mary's Avenue, London, N3 1SN
Sold Apr 1998£134,000 | 3 Bed Flat1, St. Mary's AvenueFlat C, 1, St. Mary's Avenue, London, N3 1SN
Sold Sep 1997£95,000 | 2 Bed Flat13, St. Mary's AvenueFlat D, 13, St. Mary's Avenue, London, N3 1SN
Sold Mar 1997£145,000 | 3 Bed Flat7, St. Mary's AvenueFlat 2, 7, St. Mary's Avenue, London, N3 1SN
Sold Mar 1997£100,500 | 2 Bed Flat1, St. Mary's AvenueFlat B, 1, St. Mary's Avenue, London, N3 1SN
Sold Feb 1997£90,000 | 3 Bed FlatSt. Mary's Avenue3B, St. Mary's Avenue, London, N3 1SN
Sold Aug 1996£37,500 | 1 Bed Flat15, St. Mary's AvenueFlat 5, 15, St. Mary's Avenue, London, N3 1SN
Sold Sep 1995£200,000 | 6 Bed HouseSt. Mary's AvenueAlbany, St. Mary's Avenue, London, N3 1SN
Sold Sep 1995£100,000 | 2 Bed Flat13, St. Mary's AvenueFlat A, 13, St. Mary's Avenue, London, N3 1SN
Sold Jul 1995£89,900 | 2 Bed Flat13, St. Mary's AvenueFlat C, 13, St. Mary's Avenue, London, N3 1SN
Sold Feb 1995£75,000 | 2 Bed Flat7, St. Mary's AvenueFlat 1, 7, St. Mary's Avenue, London, N3 1SN
Nearby Postcodesto N3 1SN
N3 1SN is the 556th largest and the 416th most expensive postcode out of the 571 postcodes in the N3 area.
- 14 mN3 1SW, St. Mary's Avenue, London, N3N3 1SW6 Addresses
- 84 mN3 1ST, Cyprus Avenue, London, N3N3 1ST29 Addresses
- 127 mN3 1UL, Hendon Avenue, London, N3N3 1UL18 Addresses
- 128 mN3 1UP, Freston Park, London, N3N3 1UP11 Addresses
- 139 mN3 1SS, Cyprus Avenue, London, N3N3 1SS28 Addresses
- 139 mN3 1SL, Hendon Lane, London, N3N3 1SL6 Addresses
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Property Typesin N3 1SN
- 15 period houses built between 1800 and 1911
- 33 period flats built between 1800 and 1911
- 4 mid-century houses built between 1936 and 1979
- 2 houses of an unknown age
- 10 other addresses of unknown type
- period house (15)
- period flat (33)
- mid-century house (4)
- house (2)
- Unknown (10)
Energy Efficiencyof properties in N3 1SN
- Energy Performance Certificate (EPC) surveys conducted for 38 properties.
- The dominant rating is D.
- A (0)
- E (12)
- B (1)
- F (1)
- C (3)
- G (0)
- D (21)
- No EPC (26)
Top 3 Most Expensive Saleson St. Mary's Avenue
Schools Nearbyto N3 1SN
The nearest primary school to N3 1SN is Pardes House Primary School which is 469 metres away.
- 469mPardes House Primary School
- 684mSt Mary's CofE Primary School
- 707mChalgrove Primary School
The nearest secondary school is Hasmonean High School for Boys which is 741 metres away.
- 741mHasmonean High School for Boys
- 1.4kmChrist's College Finchley
- 1.7kmHendon School
More reading links
Public Transport Nearbyto N3 1SN
The closest station to N3 1SN is Finchley Central station which is 900 metres away.
- 877mFinchley Central
- 1.2kmMill Hill East
- 1.7kmWest Finchley
- 2.3kmHendon Central
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