Use this guide to understand W4 3LN in Hounslow. Start with the interactive location and approximate postcode outline, then browse the available facts and local-area indicators. Labels show which figures relate to the exact postcode and which cover a larger geography. Census 2021 records 72 residents and 29 households at the exact postcode.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | W4 3LN |
| Postcode without spaces | W43LN |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.4862300 |
| Longitude | -0.2745620 |
| British National Grid | 519,898 E, 177,775 N |
| Country | England |
| Region | London |
| Local authority | Hounslow |
| Output Area (2021) | E00012841 |
| LSOA (2021) | E01002576 |
| MSOA (2021) | E02000533 |
| Electoral ward | E05013611 |
| Westminster constituency | E14001264 |
The postcode is assigned to these official political geographies. Names and election results will be added when the ElectionMaps datasets are connected.
These Census figures are matched directly to the full postcode, rather than inferred from a wider neighbourhood.
| Residents | 72 |
| Households | 29 |
| Female residents | 37 |
| Male residents | 35 |
| Residents per household | 2.5 |
A detailed vector map covering a 500 metre radius around the postcode.
Deprivation is published for the postcode's containing Lower Layer Super Output Area, a neighbourhood geography covering more than one postcode.
Land Registry Price Paid Data transactions matched to this exact full postcode.
| Sale date | Address | Property type | Tenure | Price |
|---|---|---|---|---|
| 2 Apr 2026 | 35A, ST MARYS GROVE, LONDON | Flat or maisonette | Leasehold | £445,000 |
| 11 Mar 2026 | 45, ST MARYS GROVE, LONDON | Semi-detached | Freehold | £1,870,000 |
| 15 Sep 2025 | 37, ST MARYS GROVE, LONDON | Detached | Freehold | £1,815,000 |
| 18 Aug 2023 | 40, ST MARYS GROVE, LONDON | Detached | Freehold | £3,350,000 |
| 29 Jul 2022 | 26, ST MARYS GROVE, LONDON | Flat or maisonette | Freehold | £1,555,000 |
| 15 Jul 2022 | 40, ST MARYS GROVE, LONDON | Detached | Freehold | £3,250,000 |
| 7 Sep 2020 | FIRST FLOOR FLAT, 28, ST MARYS GROVE, LONDON | Flat or maisonette | Leasehold | £570,000 |
| 7 May 2020 | 33C, ST MARYS GROVE, LONDON | Flat or maisonette | Leasehold | £590,000 |
Open schools and active GP practices in the W4 postcode district, ordered by straight-line distance where coordinates are available.
B
25 GROVE PARK TERRACE, CHISWICK, LONDON, W4 3JL
Community school
Nightingale Close, Chiswick, London, W4 3JN
Ages 3–11 · 428 pupils of 446 capacity
16.1% eligible for free school meals
Community school
Thames Road, Chiswick, London, W4 3NX
Ages 3–7 · 323 pupils of 357 capacity
16.6% eligible for free school meals
Community school
Thames Road, Chiswick, London, W4 3NX
Ages 7–11 · 364 pupils of 360 capacity
27.2% eligible for free school meals
Other independent school
Turnham Green Church Hall, Heathfield Gardens, Chiswick, London, W4 4JU
Ages 3–11 · 159 pupils of 220 capacity
B
95 BURLINGTON LANE, CHISWICK, LONDON, W4 3ET
Community school
Belmont Road, Chiswick, London, W4 5UL
Ages 3–11 · 444 pupils of 472 capacity
8.6% eligible for free school meals
Academy converter
Burlington Lane, Chiswick, London, W4 3UN
Ages 11–18 · 1,618 pupils of 1,300 capacity
29.7% eligible for free school meals
B
2A HOLLY ROAD, CHISWICK, LONDON, W4 1NU
Voluntary aided school
Duke Road, Chiswick, London, W4 2DF
Ages 3–11 · 195 pupils of 210 capacity
7.4% eligible for free school meals
B
FISHERS LANE, LONDON, W4 1RX
B
CHISWICK HEALTH CENTRE, FISHERS LANE, LONDON, W4 1RX
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 29 January 2025
74100 - specialised design activities
Private Limited Company
Incorporated 4 September 2024
70229 - Management consultancy activities other than financial management
Private Limited Company
Incorporated 7 May 2024
77400 - Leasing of intellectual property and similar products, except copyright works
Private Limited Company
Incorporated 26 January 2012
70100 - Activities of head offices
Private Limited Company
Incorporated 3 April 2003
58190 - Other publishing activities
Private Limited Company
Incorporated 25 July 2002
46190 - Agents involved in the sale of a variety of goods
Private Limited Company
Incorporated 7 May 1996
98000 - Residents property management
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Hounslow 008A includes W4 3LN and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Vehicle crime | 2 |
| Violence and sexual offences | 2 |
| Anti-social behaviour | 1 |
Answers use the geographic scope stated with each dataset above.
W4 3LN is in Hounslow, England.
The Census 2021 postcode-level dataset records 72 residents at W4 3LN. This is an exact postcode count.
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Yes. The sold-price records shown on this page are Land Registry transactions matched to the full W4 3LN postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full W4 3LN postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.