N12 9HY

a postcode in Barnet

Introduced in January 1980

N12 9HY	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 N12 9HY

Mayfield Avenue - 50 properties, USRN 20028980

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

Coordinates

Latitude: 51.6197 / 51°37'11"N

Longitude: -0.1702 / 0°10'12"W

UTM Reference: 30U 695888 5722539

OS Easting: 526769

OS Northing: 192798

OS Grid: TQ267927

Location Encoding

Mapcode Local: GBR CW.PR3

Mapcode Global: VHGQD.0KC5

Open Location Code: 9C3XJR9H+VW

Maidenhead Locator System: IO91vo98

Demographics

Urban/Rural Indicator: A1

major urban conurbation
a very large city or conurbation

ONS Population Classification: 4b2

Low-Skilled Migrant and Student Communities
Established Multi- Ethnic Communities
European Skilled Workforce

Index of Multiple Deprivation (IMD): 26150 / 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 N12 9HY on Thursday 2 July 2026

Nautical twilight begins (First light)	02:48
Civil twilight begins (Dawn)	04:00
Sunrise	04:48
Transit (sun is at its highest)	13:04
Sunset	21:21
Civil twilight ends (Dusk)	22:08
Nautical twilight ends (Nightfall)	23:21

Hours of daylight today	04:18 to 21:51
Hours of darkness tonight (lighting-up time)	21:51 to 04:18
Moon Phase	Waning Gibbous
Moon Sets	05:54
Moon Rises	22:00

For a full sun and moon calendar for N12 9HY, go to The Time and Place

Residential Property Sales in N12 9HY

Date	Address	Property Type	Tenure	Price
4 March 2024	123 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£755,000
27 February 2024	93 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£785,000
19 January 2024	145 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£800,000
4 August 2023	121 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£990,000
24 June 2021	109 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£731,000
19 February 2021	111 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£725,099
6 November 2020	137 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£784,000
25 October 2017	145 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£800,000
7 July 2017	143 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£880,000
7 March 2014	97 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£650,000
31 May 2012	141 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£499,950
22 May 2012	153 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£575,000
16 May 2012	75 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£410,000
24 January 2012	137 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£472,500
14 February 2011	113 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£459,000
17 September 2010	129 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£477,500
30 July 2010	153 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£499,950
18 March 2010	99 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£350,000
3 July 2009	115 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£388,000
7 March 2006	81 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£333,000
14 October 2005	133 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£358,000
24 August 2005	113 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£386,240
5 August 2005	109 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£400,000
24 June 2005	133 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£345,000
27 October 2003	121 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£360,000
26 September 2003	83 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£295,000
23 September 2003	151 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£405,000
7 May 2003	97 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£292,500
18 March 2003	119 Mayfield Avenue, London N12 9HY	Semi-detached	Freehold	£305,000
4 October 2002	159 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£279,950
25 March 2002	87 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£240,000
15 March 2002	137 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£278,000
23 June 2000	143 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£242,000
16 July 1999	135 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£199,950
15 June 1999	139 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£181,000
9 April 1998	141 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£172,000
15 August 1997	145 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£145,000
14 February 1995	73 Mayfield Avenue, London N12 9HY	Terraced (including end-of-terrace)	Freehold	£137,000

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 N12 9HY

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

Woodhouse

Councillors

Geof Cooke Labour

Anne Hutton Labour

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

Government Statistical Services (GSS) data for N12 9HY

Code	Name	Data Type	Data Theme	Active Since	Data Owner
E00001574		Output Areas	Statistical Building Block	1 January 2009	ONS
E01000320	Barnet 011D	Lower layer Super Output Areas	Statistical Building Block	1 February 2004	ONS
E02000034	Barnet 011	Middle layer Super Output Areas	Statistical Building Block	1 August 2004	ONS
E05013651	Woodhouse	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
E33032312		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

The UK Postcode Database