Use this guide to understand TW3 3SL 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 79 residents and 24 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 | TW3 3SL |
| Postcode without spaces | TW33SL |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.4585100 |
| Longitude | -0.3722100 |
| British National Grid | 513,187 E, 174,538 N |
| Country | England |
| Region | London |
| Local authority | Hounslow |
| Output Area (2021) | E00013167 |
| LSOA (2021) | E01002652 |
| MSOA (2021) | E02000546 |
| Electoral ward | E05013622 |
| Westminster constituency | E14001124 |
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 | 79 |
| Households | 24 |
| Female residents | 32 |
| Male residents | 47 |
| Residents per household | 3.3 |
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 |
|---|---|---|---|---|
| 14 May 2024 | 17, ST HELIERS AVENUE, HOUNSLOW | Semi-detached | Freehold | £465,000 |
| 14 Apr 2020 | 15, ST HELIERS AVENUE, HOUNSLOW | Semi-detached | Freehold | £450,000 |
Open schools and active GP practices in the TW3 postcode district, ordered by straight-line distance where coordinates are available.
Community school
Cromwell Road, Hounslow, TW3 3QQ
Ages 3–11 · 233 pupils of 236 capacity
18.8% eligible for free school meals
B
MASWELL PARK HEALTH CTR, HOUNSLOW AVENUE, HOUNSLOW, TW3 2DY
B
HOUNSLOW AVENUE, HOUNSLOW, TW3 2DY
B
HOUNSLOW AVENUE, HOUNSLOW, TW3 2DY
B
HOUNSLOW AVENUE, HOUNSLOW, TW3 2DY
B
92 BATH ROAD, HOUNSLOW, TW3 3LN
B
HOUNSLOW HEALTH CENTRE, 92 BATH ROAD, HOUNSLOW, TW3 3LN
B
HEART OF HOUNSLOW CENTRE FOR HEALTH, 92 BATH ROAD, HOUNSLOW, TW3 3EL
B
HEART OF HOUNSLOW CENTRE FOR HEALTH, 92 BATH ROAD, HOUNSLOW, TW3 3EL
B
HOUNSLOW HEALTH CENTRE, 92 BATH ROAD, HOUNSLOW, TW3 3LN
B
92 BATH ROAD, HOUNSLOW, TW3 3LN
Academy converter
106 Bath Road, Hounslow, TW3 3EJ
Ages 11–18 · 1,214 pupils of 1,213 capacity
12.1% eligible for free school meals
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 6 April 2025
47421 - Retail sale of mobile telephones
Private Limited Company
Incorporated 11 January 2021
56290 - Other food services
Private Limited Company
Incorporated 7 January 2013
69202 - Bookkeeping activities
Private Limited Company
Incorporated 20 November 2003
59112 - Video production activities
Private Limited Company
Incorporated 15 May 2012
96090 - Other service activities n.e.c.
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Hounslow 021D includes TW3 3SL and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Shoplifting | 14 |
| Violence and sexual offences | 7 |
| Vehicle crime | 3 |
| Robbery | 2 |
| Other theft | 1 |
| Theft from the person | 1 |
Answers use the geographic scope stated with each dataset above.
TW3 3SL is in Hounslow, England.
The Census 2021 postcode-level dataset records 79 residents at TW3 3SL. 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 TW3 3SL postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full TW3 3SL postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.