Use this guide to understand CF3 6YQ in Wales. 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 20 residents and 7 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 | CF3 6YQ |
| Postcode without spaces | CF36YQ |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | June 2018 |
| Directory version | 2026-06 |
| Latitude | 51.5386200 |
| Longitude | -3.1210470 |
| British National Grid | 322,347 E, 182,787 N |
| Country | Wales |
| Output Area (2021) | W00010552 |
| LSOA (2021) | W01002016 |
| MSOA (2021) | W02000369 |
| Electoral ward | W05001290 |
| Westminster constituency | W07000090 |
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 | 20 |
| Households | 7 |
| Female residents | 9 |
| Male residents | 11 |
| Residents per household | 2.9 |
A detailed vector map covering a 500 metre radius around the postcode.
Land Registry Price Paid Data transactions matched to this exact full postcode.
| Sale date | Address | Property type | Tenure | Price |
|---|---|---|---|---|
| 10 Apr 2026 | 14, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £295,000 |
| 16 Oct 2025 | 16, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £289,950 |
| 20 Mar 2025 | 15, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £285,000 |
| 22 Feb 2024 | 6, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £317,500 |
| 3 Jul 2023 | 16, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £265,000 |
| 15 Feb 2023 | 4, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Detached | Freehold | £327,500 |
| 15 Oct 2021 | 8, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached · New build | Freehold | £270,995 |
| 13 Sep 2021 | 24, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Detached · New build | Freehold | £342,495 |
| 30 Jun 2021 | 9, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached · New build | Freehold | £269,995 |
| 30 Jun 2021 | 7, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached · New build | Freehold | £264,995 |
| 30 Jun 2021 | 11, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached | Freehold | £259,995 |
| 30 Jun 2021 | 13, LEWIS CRESCENT, OLD ST MELLONS, CARDIFF | Semi-detached · New build | Freehold | £269,995 |
Open schools and active GP practices in the CF3 postcode district, ordered by straight-line distance where coordinates are available.
Welsh establishment
Bridge Road, Old St Mellons, Cardiff, CF3 6UY
Welsh establishment
Shaw Close, Llanrumney, Cardiff, CF3 5NX
Welsh establishment
Newport Road, College Green, Old St Mellon's, Cardiff, CF3 5YX
Welsh establishment
Browning Close, Llanrumney, Cardiff, CF3 5NJ
Welsh establishment
Dunster Road, Llanrumney, Cardiff, CF3 5TP
Welsh establishment
Willowbrook Drive, Trowbridge, Cardiff, CF3 0AY
Welsh establishment
Ferntree Drive, Trowbridge, Cardiff, CF3 0AA
B
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
Welsh establishment
Blagdon Close, Llanrumney, Cardiff, CF3 4HF
Welsh establishment
Newport Road, Rumney, Cardiff, CF3 1XQ
Welsh establishment
Glan-Y-Mor Road, Trowbridge, Cardiff, CF3 1RQ
B
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 19 March 2025
82990 - Other business support service activities n.e.c.
Private Limited Company
Incorporated 17 August 2020
61900 - Other telecommunications activities
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Cardiff 003E includes CF3 6YQ and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Violence and sexual offences | 7 |
| Anti-social behaviour | 3 |
| Possession of weapons | 3 |
| Burglary | 1 |
| Criminal damage and arson | 1 |
| Drugs | 1 |
| Public order | 1 |
| Shoplifting | 1 |
Answers use the geographic scope stated with each dataset above.
CF3 6YQ is in Wales.
The Census 2021 postcode-level dataset records 20 residents at CF3 6YQ. This is an exact postcode count.
Yes. The sold-price records shown on this page are Land Registry transactions matched to the full CF3 6YQ postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full CF3 6YQ postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.