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CF23 8AU

Pontprennau and Old St Mellons · Cardiff · Wales

Updated September 2026

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Location overview

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Ward
Pontprennau and Old St Mellons
Local authority
Cardiff
Constituency
Cardiff North
Postcode district
CF23
Postcode sector
CF23 8

Nearby postcodes

Nearby postcode distances
Postcode Distance
CF23 8BA 135 m
CF23 8RN 154 m
CF23 8LL 165 m
CF23 8RG 211 m
CF23 8RJ 215 m
Complete postcode fields and official codes
Postcode
CF23 8AU
Status
Terminated
Introduced
1 December 2001
Terminated
1 December 2025
Postcode area
CF
Postcode district
CF23
Postcode sector
CF23 8
Latitude
51.538163
Longitude
-3.140631
British National Grid easting
320,988
British National Grid northing
182,757

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
W04000868
Westminster constituency
Cardiff North · W07000090
Output area
W00009501
Lower layer super output area
Cardiff 003B · W01001842
Middle layer super output area
Cardiff 003 · W02000369

Postcode source versions

Explore CF23

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
43
Primary
0
Secondary
0

  1. Pontprennau Primary School

    Welsh establishment

    167 m

  2. St Bernadette's R.C. Primary School

    Welsh establishment

    1.4 km

  3. The Hollies Special School

    Welsh establishment

    1.4 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
957
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 370
  • Public order 137
  • Shoplifting 99
  • Anti social behaviour 84
  • Criminal damage and arson 81

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
CF23 8 residents
7,049

Age bands in CF23 8

Wider postcode sector
Age 0 to 14
19.3%

1,377 residents

Age 15 to 24
10.7%

765 residents

Age 25 to 44
30.3%

2,164 residents

Age 45 to 64
28.5%

2,034 residents

Age 65 and over
11.1%

795 residents

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+
0%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
0%
Decent broadband available from fixed wireless
100%

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

13

within 5 km straight-line

  • CYNCOED MEDICAL PRACTICE

    DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ

    ODS code W97010

    1.1 km

  • ST. DAVIDS MEDICAL CENTRE

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

    ODS code W97065

    1.5 km

  • LLANEDEYRN HEALTH CENTRE

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

    ODS code W97008

    2.8 km

  • BRYNDERWEN SURGERY

    CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF

    ODS code W97006

    3.0 km

  • LLANISHEN COURT SURGERY

    LLANISHEN COURT, LLANISHEN, CARDIFF, CF14 5YU

    ODS code W97013

    3.5 km

  • RUMNEY PRIMARY CARE CENTRE

    BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG

    ODS code W97027

    3.7 km

  • WILLOWBROOK SURGERY

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

    ODS code W97069

    3.7 km

  • NORTH CARDIFF MEDICAL CENTRE

    EXCALIBUR DRIVE, THORNHILL, CARDIFF, CF14 9BB

    ODS code W97015

    3.7 km

  • ST. ISAN ROAD SURGERY

    46 ST. ISAN ROAD, HEATH CARDIFF, CARDIFF, CF14 4UU

    ODS code W97053

    4.2 km

  • ROATH HOUSE SURGERY

    100 PEN-Y-LAN ROAD, PENYLAN, CARDIFF, CF23 5RH

    ODS code W97034

    4.7 km

  • CRWYS MEDICAL CENTRE

    THE CRWYS SURGERY, WEDAL ROAD, CARDIFF, CF14 3QX

    ODS code W97041

    4.8 km

  • BIRCHGROVE SURGERY

    CAERPHILLY ROAD, CARDIFF, CF14 4QJ

    ODS code W97021

    4.8 km

  • THE PENYLAN SURGERY

    74 PEN-Y-LAN ROAD, CARDIFF, CF23 5SY

    ODS code W97033

    4.9 km

Nearby transport

  • Youghal Close

    BCT · Pontprennau

    0.1 miles

  • Youghal Close

    BCT · Pontprennau

    0.1 miles

  • Pontprennau Community Centre

    BCT · Pontprennau

    0.2 miles

  • Pontprennau Community Centre

    BCT · Pontprennau

    0.2 miles

  • Malthouse Avenue

    BCT · Cardiff Gate

    0.2 miles

Evidence in context

Schools

43 open schools are in scope, including 0 primary and 0 secondary schools. Pontprennau Primary School is the nearest published school at 167 m.

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

Recorded crime

957 published events cover 12 months, averaging 79.75 events per published month. The largest recorded category is Violence and sexual offences with 370 events.

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