The UK Postcode Database

N3 1SN

a postcode in Barnet

Introduced in January 1980
N3 1SN Normal (geographic) postcodes Large user postcodes

The nearby postcodes map only shows currently active postcodes. Postcode markers will cluster if they are close together, which may happen in densly populated built-up areas or where single premises have multiple postcodes.

Streets Associated with N3 1SN

St Marys Avenue - 77 properties, USRN 20038220

Street names are those nearest to properties in this postcode, they are not necessarily the postal address

Coordinates

Latitude: 51.5979 / 51°35'52"N

Longitude: -0.204 / 0°12'14"W

UTM Reference: 30U 693648 5720021

OS Easting: 524495

OS Northing: 190312

OS Grid: TQ244903

Location Encoding

Mapcode Local: GBR C2.THC

Mapcode Global: VHGQK.F31C

Open Location Code: 9C3XHQXW+5C

Maidenhead Locator System: IO91vo53

Demographics

Urban/Rural Indicator: A1

  • major urban conurbation
  • a very large city or conurbation

ONS Population Classification: 5a1

  • Ethnically Diverse Suburb-an Professionals
  • Outer Suburbs
  • Outer Suburb Asian Mix

Index of Multiple Deprivation (IMD): 25046 / 32844

  • 8th decile
  • less deprived

Demographics are based on the LSOA containing this postcode and not necessarily this postcode alone

Sun and Moon Times for N3 1SN on Wednesday 17 June 2026

Nautical twilight begins (First light) 02:39
Civil twilight begins (Dawn) 03:54
Sunrise 04:42
Transit (sun is at its highest) 13:01
Sunset 21:21
Civil twilight ends (Dusk) 22:08
Nautical twilight ends (Nightfall) 23:23
Hours of daylight today04:12 to 21:51
Hours of darkness tonight
(lighting-up time)
21:51 to 04:12
Moon Phase Waxing Crescent
Moon Rises 05:52
Moon sets 22:49

For a full sun and moon calendar for N3 1SN, go to The Time and Place

Residential Property Sales in N3 1SN

DateAddressProperty TypeTenurePrice
30 June 2023 38 St Marys Avenue, London N3 1SN Semi-detached Freehold £1,185,000
12 August 2021 1d St Marys Avenue, London N3 1SN Flat/apartment Leasehold £396,000
25 March 2021 34 St Marys Avenue, London N3 1SN Semi-detached Freehold £875,000
12 March 2021 1 St Marys Avenue, London N3 1SN Other property type Freehold £825,000
2 February 2021 3b St Marys Avenue, London N3 1SN Flat/apartment Leasehold £625,000
14 August 2020 38 St Marys Avenue, London N3 1SN Semi-detached Freehold £965,000
30 August 2019 38 St Marys Avenue, London N3 1SN Semi-detached Freehold £800,000
23 July 2019 22a St Marys Avenue, London N3 1SN Semi-detached Freehold £1,200,000
31 January 2018 Heathfield, St Marys Avenue, London N3 1SN Detached Freehold £1,375,000
26 October 2017 Flat D, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £390,000
7 February 2017 26 St Marys Avenue, London N3 1SN Detached Freehold £1,125,000
12 December 2016 22a St Marys Avenue, London N3 1SN Semi-detached Freehold £860,000
17 May 2016 Heathfield, St Marys Avenue, London N3 1SN Detached Freehold £1,180,000
12 May 2016 3b St Marys Avenue, London N3 1SN Flat/apartment Leasehold £556,200
12 January 2016 21 St Marys Avenue, London N3 1SN Semi-detached Freehold £1,140,000
18 December 2015 8 St Marys Avenue, London N3 1SN Semi-detached Freehold £1,495,000
25 June 2015 2 St Marys Avenue, London N3 1SN Detached Freehold £1,170,000
8 July 2014 30 St Marys Avenue, London N3 1SN Semi-detached Freehold £1,090,000
2 August 2013 29 St Marys Avenue, London N3 1SN Semi-detached Freehold £950,000
8 February 2012 27 St Marys Avenue, London N3 1SN Semi-detached Freehold £900,000
22 December 2011 Flat 5, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £165,000
23 September 2011 12a St Marys Avenue, London N3 1SN Semi-detached Freehold £1,150,000
12 November 2010 17 St Marys Avenue, London N3 1SN Detached Freehold £880,000
21 October 2010 Albany, St Marys Avenue, London N3 1SN Detached Freehold £1,000,000
18 June 2010 1c St Marys Avenue, London N3 1SN Flat/apartment Leasehold £340,000
23 November 2007 3b St Marys Avenue, London N3 1SN Flat/apartment Leasehold £327,000
9 November 2007 2 St Marys Avenue, London N3 1SN Detached Freehold £685,000
25 September 2007 8 St Marys Avenue, London N3 1SN Semi-detached Freehold £1,200,000
30 April 2007 Flat 4, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £250,000
25 April 2007 Flat C, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £325,000
26 February 2007 Flat 3, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £155,000
24 November 2006 Flat 1, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £150,000
24 November 2006 Flat 2, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £270,000
24 November 2006 15 St Marys Avenue, London N3 1SN Flat/apartment Freehold £335,000
15 September 2006 Flat 3, 3 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £369,950
28 June 2006 Flat C, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £230,000
15 June 2006 Albany, St Marys Avenue, London N3 1SN Detached Freehold £730,000
31 January 2006 2 St Marys Avenue, London N3 1SN Detached Freehold £495,000
27 June 2005 Flat 2, 7 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £372,500
20 October 2004 8 St Marys Avenue, London N3 1SN Semi-detached Freehold £520,000
29 July 2004 1d St Marys Avenue, London N3 1SN Flat/apartment Leasehold £196,500
30 June 2004 Formentor, St Marys Avenue, London N3 1SN Detached Freehold £687,500
29 June 2004 1c St Marys Avenue, London N3 1SN Flat/apartment Leasehold £263,000
15 January 2004 Flat 3, 3 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £322,000
19 March 2003 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £117,500
30 September 2002 1c St Marys Avenue, London N3 1SN Flat/apartment Leasehold £249,950
16 August 2002 10 St Marys Avenue, London N3 1SN Semi-detached Freehold £466,950
10 May 2002 Flat B, 1 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £199,950
15 March 2002 Albany, St Marys Avenue, London N3 1SN Detached Freehold £598,000
14 December 2001 3b St Marys Avenue, London N3 1SN Flat/apartment Leasehold £229,950
4 October 2001 23 St Marys Avenue, London N3 1SN Semi-detached Freehold £499,950
30 July 2001 23 St Marys Avenue, London N3 1SN Semi-detached Freehold £370,000
20 June 2001 14 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £151,000
7 June 2001 Flat 3, 3 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £209,950
17 May 2001 Flat B, 1 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £140,000
8 February 2001 20 St Marys Avenue, London N3 1SN Semi-detached Freehold £410,000
12 October 2000 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £80,000
15 September 2000 Flat D, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £130,000
15 February 2000 22b St Marys Avenue, London N3 1SN Semi-detached Freehold £260,000
24 November 1999 4 St Marys Avenue, London N3 1SN Semi-detached Freehold £435,000
5 November 1999 1d St Marys Avenue, London N3 1SN Flat/apartment Leasehold £99,950
5 August 1999 Flat E, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £125,000
16 July 1999 Flat 1, 7 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £150,000
15 July 1999 28 St Marys Avenue, London N3 1SN Semi-detached Freehold £390,000
20 November 1998 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £49,500
20 August 1998 Flat 3, 3 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £129,500
1 April 1998 1c St Marys Avenue, London N3 1SN Flat/apartment Leasehold £134,000
18 September 1997 Flat D, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £95,000
3 March 1997 Flat 2, 7 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £145,000
3 March 1997 Flat B, 1 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £100,500
7 February 1997 3b St Marys Avenue, London N3 1SN Flat/apartment Leasehold £90,000
29 August 1996 Flat 5, 15 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £37,500
13 November 1995 1 St Marys Avenue, London N3 1SN Detached Freehold £189,950
18 September 1995 Albany, St Marys Avenue, London N3 1SN Detached Freehold £200,000
4 September 1995 13a St Marys Avenue, London N3 1SN Flat/apartment Leasehold £100,000
9 July 1995 Flat C, 13 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £89,900
22 February 1995 Flat 1, 7 St Marys Avenue, London N3 1SN Flat/apartment Leasehold £75,000

Key to property sale icons:

First sale of newbuild property. This includes new properties created from existing properties, such as residential conversions of commercial or agricultural property, or subdivision of a larger residential property.
Subsequent sale of existing property.
Standard sale at market value to private individual.
Additional (non-standard) sale. This includes repossessions, buy-to-lets and transfers of property sold to non-private individuals.

Elected Representatives for N3 1SN

United Kingdom Parliament
Constituency

Finchley and Golders Green

MP

Sarah Sackman Labour

London Assembly
Assembly Constituency

Barnet and Camden

Assembly Member

Anne Clarke Labour

Londonwide Members

Assembly Members

Elly Baker Labour

Emma Best Conservative

Andrew Boff Conservative

Hina Bokhari Liberal Democrat

Zoë Garbett Green

Alessandro Georgiou Conservative

Susan Hall Conservative

Lord Bailey of Paddington Conservative

Zack Polanski Green

Caroline Russell Green

Alex Wilson Reform UK

Barnet Borough Council
London borough ward

Finchley Church End

Councillors

Jennifer Grocock Conservative

Daniel Thomas Conservative

Josh Mastin-Lee Conservative

Elected representative data is updated approximately monthly, so may not include recent by-elections or vacancies.

Government Statistical Services (GSS) data for N3 1SN

CodeNameData TypeData ThemeActive SinceData Owner
E00000999 Output Areas Statistical Building Block 1 January 2009 ONS
E01000200 Barnet 028B Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02000051 Barnet 028 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E05013639 Finchley Church End Electoral Wards/Divisions Administrative/Electoral 5 May 2022 DLUHC
E09000003 Barnet London Boroughs Administrative 1 January 2009 DLUHC
E12000007 London Regions Administrative 1 January 2009 DLUHC
E14001238 Finchley and Golders Green Westminster Parliamentary Constituencies Electoral 4 July 2024 LGBC
E23000001 Metropolitan Police Police Force Areas Other 1 January 2009 Home Office
E30000234 London Travel to Work Areas Other 31 July 2015 ONS
E32000001 Barnet and Camden London Assembly Constituencies Electoral 6 May 2010 Greater London Authority
E33032403 Workplace Zones Census 31 December 2011 ONS
E37000051 London Local Enterprise Partnerships Other 1 April 2020 BEIS
E38000240 NHS North Central London ICB - 93C Sub Integrated Care Board Locations Health 1 July 2022 ODS
E40000003 London NHS England Regions Health 1 April 2013 ODS
E43000193 Barnet, unparished area Non-Civil Parished Areas Census 31 December 2011 ONS
E54000028 North London Partners in Health and Care Integrated Care Boards Health 1 April 2019 NHS
E56000027 North Central London Cancer Alliances Health 1 April 2020 NHS England
E61000001 Greater London Authority Greater London Authority Administrative 3 July 2000 ONS
E63011868 Barnet Built Up Areas Census 17 April 2024 OS
E65000001 England Non-National Park Area England Non-National Park Area Census 27 February 2023 ONS
E92000001 England Country Administrative 1 January 2009 ONS

All public sector data is licensed under the Open Government Licence v2.0.

The UK Postcode Database is a Good Stuff website.

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