The UK Postcode Database

HA4 6SY

a postcode in Hillingdon

Introduced in January 1980
HA4 6SY 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 HA4 6SY

Mahlon Avenue - 26 properties, USRN 21401207

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

Coordinates

Latitude: 51.5531 / 51°33'11"N

Longitude: -0.4018 / 0°24'6"W

UTM Reference: 30U 680125 5714530

OS Easting: 510902

OS Northing: 185007

OS Grid: TQ109850

Location Encoding

Mapcode Local: GBR 3M.Z82

Mapcode Global: VHFT5.Z7G8

Open Location Code: 9C3XHH3X+67

Maidenhead Locator System: IO91tn12

Demographics

Urban/Rural Indicator: A1

  • major urban conurbation
  • a very large city or conurbation

ONS Population Classification: 4b1

  • Low-Skilled Migrant and Student Communities
  • Established Multi- Ethnic Communities
  • Multi-Generational Migrants

Index of Multiple Deprivation (IMD): 24471 / 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 HA4 6SY on Thursday 9 July 2026

Nautical twilight begins (First light) 03:01
Civil twilight begins (Dawn) 04:09
Sunrise 04:55
Transit (sun is at its highest) 13:06
Sunset 21:18
Civil twilight ends (Dusk) 22:04
Nautical twilight ends (Nightfall) 23:12
Hours of daylight today04:25 to 21:48
Hours of darkness tonight
(lighting-up time)
21:48 to 04:26
Moon Phase Waning Crescent
Moon Sets 15:20
Moon Rises 23:47

For a full sun and moon calendar for HA4 6SY, go to The Time and Place

Residential Property Sales in HA4 6SY

DateAddressProperty TypeTenurePrice
29 June 2021 11 Mahlon Avenue, Ruislip HA4 6SY Detached Freehold £585,000
18 November 2020 27 Mahlon Avenue, Ruislip HA4 6SY Flat/apartment Freehold £570,000
12 November 2020 39 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £605,000
12 February 2020 41 Mahlon Avenue, Ruislip HA4 6SY Detached Freehold £675,000
17 May 2019 25 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £530,000
17 September 2015 21 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £450,000
8 January 2015 11 Mahlon Avenue, Ruislip HA4 6SY Detached Freehold £400,000
15 August 2014 15 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £485,000
5 April 2012 11 Mahlon Avenue, Ruislip HA4 6SY Detached Freehold £256,000
5 August 2011 9 Mahlon Avenue, Ruislip HA4 6SY Detached Freehold £295,000
21 July 2011 17 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £288,000
25 November 2009 13 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £275,000
10 October 2008 33 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £290,000
12 December 2007 49 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £293,500
15 July 2005 23 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £260,000
26 March 2004 45 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £210,000
27 September 2001 49 Mahlon Avenue, Ruislip HA4 6SY Terraced (including end-of-terrace) Freehold £182,000
27 August 1999 27 Mahlon Avenue, Ruislip HA4 6SY Flat/apartment Freehold £175,000
12 July 1999 43 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £165,000
30 June 1999 23 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £129,500
17 January 1997 17 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £78,000
22 August 1996 25 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £80,000
29 February 1996 43 Mahlon Avenue, Ruislip HA4 6SY Semi-detached Freehold £115,000
10 November 1995 27 Mahlon Avenue, Ruislip HA4 6SY Flat/apartment Freehold £93,000

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 HA4 6SY

United Kingdom Parliament
Constituency

Uxbridge and South Ruislip

MP

Danny Beales Labour

London Assembly
Assembly Constituency

Ealing and Hillingdon

Assembly Member

Bassam Mahfouz 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

Hillingdon Borough Council
London borough ward

South Ruislip

Councillors

Richard Mills Conservative

Heena Makwana Conservative

Steve Tuckwell Conservative

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

Government Statistical Services (GSS) data for HA4 6SY

CodeNameData TypeData ThemeActive SinceData Owner
E00012431 Output Areas Statistical Building Block 1 January 2009 ONS
E01002495 Hillingdon 010E Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02000503 Hillingdon 010 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E05013579 South Ruislip Electoral Wards/Divisions Administrative/Electoral 5 May 2022 DLUHC
E09000017 Hillingdon London Boroughs Administrative 1 January 2009 DLUHC
E12000007 London Regions Administrative 1 January 2009 DLUHC
E14001558 Uxbridge and South Ruislip Westminster Parliamentary Constituencies Electoral 4 July 2024 LGBC
E23000001 Metropolitan Police Police Force Areas Other 1 January 2009 Home Office
E30000266 Slough and Heathrow Travel to Work Areas Other 31 July 2015 ONS
E32000006 Ealing and Hillingdon London Assembly Constituencies Electoral 6 May 2010 Greater London Authority
E33034427 Workplace Zones Census 31 December 2011 ONS
E37000051 London Local Enterprise Partnerships Other 1 April 2020 BEIS
E38000256 NHS North West London ICB - W2U3Z Sub Integrated Care Board Locations Health 1 July 2022 ODS
E40000003 London NHS England Regions Health 1 April 2013 ODS
E43000207 Hillingdon, unparished area Non-Civil Parished Areas Census 31 December 2011 ONS
E54000027 North West London Health and Care Partnership Integrated Care Boards Health 1 April 2019 NHS
E56000021 North West and South West London Cancer Alliances Health 1 July 2019 NHS England
E61000001 Greater London Authority Greater London Authority Administrative 3 July 2000 ONS
E63012034 Hillingdon 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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