Property market
The five-year median is £411,250 from 6 recorded sales in CF3 6XJ. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Cardiff is £270,094 in June 2026, up 2.1% year on year.
CF3 6XJ
Pontprennau and Old St Mellons · Cardiff · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Cardiff
- Local authority
- Cardiff
- Constituency
- Cardiff North
- Postcode district
- CF3
- Postcode sector
- CF3 6
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- CF3 6XJ
- Status
- Current
- Introduced
- 1 June 1999
- Terminated
- Not published
- Postcode area
- CF
- Postcode district
- CF3
- Postcode sector
- CF3 6
- Latitude
- 51.535126
- Longitude
- -3.112310
- British National Grid easting
- 322,947
- British National Grid northing
- 182,389
Statistical and administrative geographies
- Country
- Wales · W92000004
- Region
- W99999999
- Local authority district
- Cardiff · W06000015
- Electoral ward
- Pontprennau and Old St Mellons · W05001290
- Parish or community
- W04000888
- Westminster constituency
- Cardiff North · W07000090
- Output area
- W00010534
- Lower layer super output area
- Cardiff 003E · W01002016
- Middle layer super output area
- Cardiff 003 · W02000369
Postcode source versions
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore CF3
Property
48 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| Little Orchard, Began Road, Old St Mellons, Cardiff, CF3 6XJ | 5 July 2024 | £395,000 |
| The Cottage, Began Road, Old St Mellons, Cardiff, CF3 6XJ | 17 May 2024 | £412,500 |
| The Grainhouse, Began Road, Old St Mellons, Cardiff, CF3 6XJ | 23 June 2023 | £805,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 35
- Primary
- 0
- Secondary
- 0
- 615 m
St Mellons C.I.W. Primary School
Welsh establishment
- 770 m
St Johns College
Welsh establishment
- 1.1 km
Bishop Childs C.I.W. Primary School
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 1,589
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 541
- Public order 227
- Anti social behaviour 195
- Criminal damage and arson 152
- Shoplifting 148
Census 2021
Population and age profile
- Postcode residents
- 92
- Postcode households
- 37
- Residents per household
- 2.5
- CF3 6 residents
- 2,895
50 female, 42 male
Age bands in CF3 6
Wider postcode sector- Age 0 to 14
- 21.2%
- Age 15 to 24
- 9.2%
- Age 25 to 44
- 41.1%
- Age 45 to 64
- 18.8%
- Age 65 and over
- 9.6%
668 residents
291 residents
1,293 residents
593 residents
302 residents
This postcode contained 3.2% of the sector's usual residents on Census Day. The age profile describes the wider CF3 6 sector, not people in this individual postcode.
Small counts are adjusted for privacy, so totals can differ slightly between Census tables.
Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.
Fixed broadband coverage
Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.
- Superfast, 30 Mbit/s+
- 100%
- Ultrafast, 100 Mbit/s+
- 100%
- Ultrafast, 300 Mbit/s+
- 100%
- Gigabit-capable
- 100%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 100%
- Decent broadband available from fixed wireless
- 51.1%
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
6
within 5 km straight-line
BRYNDERWEN SURGERY
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
ODS code W97006
1.3 km
WILLOWBROOK SURGERY
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
ODS code W97069
1.9 km
ST. DAVIDS MEDICAL CENTRE
PONTPRENNAU MEDICAL CENTR, PENTWYN DRIVE, CARDIFF, CF23 7SD
ODS code W97065
2.6 km
CYNCOED MEDICAL PRACTICE
DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ
ODS code W97010
2.7 km
RUMNEY PRIMARY CARE CENTRE
BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG
ODS code W97027
3.3 km
LLANEDEYRN HEALTH CENTRE
LLAN HEALTHCARE, WELLBEING HUB @ MAELFA, ROUND WOOD, LLANEDEYRN, CARDIFF, CF23 9PF
ODS code W97008
3.5 km
Nearby transport
- 0.2 miles
Tyrwinch Road
BCT · Old St Mellons
- 0.2 miles
Tyrwinch Road
BCT · Old St Mellons
- 0.4 miles
Rogers Avenue
BCT · Old St Mellons
- 0.4 miles
Church Road 2
BCT · Llanedeyrn
- 0.5 miles
Bluebell Drive
BCT · Llanrumney
Evidence in context
Schools
35 open schools are in scope, including 0 primary and 0 secondary schools. St Mellons C.I.W. Primary School is the nearest published school at 615 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
1,589 published events cover 12 months, averaging 132.417 events per published month. The largest recorded category is Violence and sexual offences with 541 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.