CF3 6BF

Pontprennau and Old St Mellons · Cardiff · Wales

Updated September 2026

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Location overview

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Post town
Cardiff
Local authority
Cardiff
Constituency
Cardiff North
Postcode district
CF3
Postcode sector
CF3 6

Nearby postcodes

Nearby postcode distances
Postcode Distance
CF3 6BB 71 m
CF3 6BA 86 m
CF3 6BD 118 m
CF3 6BG 142 m
CF3 6BE 147 m
Complete postcode fields and official codes
Postcode
CF3 6BF
Status
Current
Introduced
1 May 2024
Terminated
Not published
Postcode area
CF
Postcode district
CF3
Postcode sector
CF3 6
Latitude
51.538475
Longitude
-3.123206
British National Grid easting
322,197
British National Grid northing
182,773

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Cardiff · W06000015
Parish or community
W04000888
Westminster constituency
Cardiff North · W07000090
Output area
W00010552
Lower layer super output area
Cardiff 003E · W01002016
Middle layer super output area
Cardiff 003 · W02000369

Postcode source versions

Explore CF3

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
6 recorded sales at this postcode
Address Date Price
5, Clos Grehan, Old St Mellons, Cardiff, CF3 6BF 27 June 2025 £429,995
3, Clos Grehan, Old St Mellons, Cardiff, CF3 6BF 27 June 2025 £415,000
4, Clos Grehan, Old St Mellons, Cardiff, CF3 6BF 20 March 2025 £435,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
39
Primary
0
Secondary
0
  1. St Mellons C.I.W. Primary School

    Welsh establishment

    444 m
  2. Pontprennau Primary School

    Welsh establishment

    1.3 km
  3. St Cadoc's Primary School

    Welsh establishment

    1.3 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
902
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 333
  • Public order 150
  • Anti social behaviour 97
  • Criminal damage and arson 84
  • Shoplifting 64

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
CF3 6 residents
2,895

Age bands in CF3 6

Wider postcode sector
Age 0 to 14
21.2%

668 residents

Age 15 to 24
9.2%

291 residents

Age 25 to 44
41.1%

1,293 residents

Age 45 to 64
18.8%

593 residents

Age 65 and over
9.6%

302 residents

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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
11.1%
Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

NHS ODS

GP practices

8

within 5 km

  • BRYNDERWEN SURGERY

    CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF

    ODS code W97006

    2.1 km

  • CYNCOED MEDICAL PRACTICE

    DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ

    ODS code W97010

    2.1 km

  • ST. DAVIDS MEDICAL CENTRE

    PONTPRENNAU MEDICAL CENTR, PENTWYN DRIVE, CARDIFF, CF23 7SD

    ODS code W97065

    2.2 km

  • WILLOWBROOK SURGERY

    5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH

    ODS code W97069

    2.7 km

  • LLANEDEYRN HEALTH CENTRE

    LLAN HEALTHCARE, WELLBEING HUB @ MAELFA, ROUND WOOD, LLANEDEYRN, CARDIFF, CF23 9PF

    ODS code W97008

    3.3 km

  • RUMNEY PRIMARY CARE CENTRE

    BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG

    ODS code W97027

    3.6 km

  • LLANISHEN COURT SURGERY

    LLANISHEN COURT, LLANISHEN, CARDIFF, CF14 5YU

    ODS code W97013

    4.7 km

  • NORTH CARDIFF MEDICAL CENTRE

    EXCALIBUR DRIVE, THORNHILL, CARDIFF, CF14 9BB

    ODS code W97015

    5.0 km

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Mortimer Avenue

    BCT · Old St Mellons

    0.1 miles
  • Rogers Avenue

    BCT · Old St Mellons

    0.2 miles
  • Heol Booths 3

    BCT · Old St Mellons

    0.2 miles
  • Heol Booths 2

    BCT · Llanedeyrn

    0.2 miles
  • Heol Booths 1

    BCT · Old St Mellons

    0.3 miles

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £422,498 from 6 recorded sales in CF3 6BF. 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.

Schools

Published establishments

39 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 444 m.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

902 published events cover 12 months, averaging 75.167 events per published month. The largest recorded category is Violence and sexual offences with 333 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.