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CF3 6YF

Pontprennau and Old St Mellons · Cardiff · Wales

Updated September 2026

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Location overview

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Post town
Cardiff
Ward
Pontprennau and Old St Mellons
Local authority
Cardiff
Constituency
Cardiff North
Postcode district
CF3
Postcode sector
CF3 6

Nearby postcodes

Nearby postcode distances
Postcode Distance
CF3 6AS 73 m
CF3 6AR 91 m
CF3 6YG 112 m
CF3 6AQ 118 m
CF3 6AP 156 m
Complete postcode fields and official codes
Postcode
CF3 6YF
Status
Current
Introduced
1 March 2018
Terminated
Not published
Postcode area
CF
Postcode district
CF3
Postcode sector
CF3 6
Latitude
51.535889
Longitude
-3.124670
British National Grid easting
322,091
British National Grid northing
182,487

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
W00010595
Lower layer super output area
Cardiff 003F · W01002017
Middle layer super output area
Cardiff 003 · W02000369

Postcode source versions

Explore CF3

Property

View all property records
78 recorded sales at this postcode
Address Date Price
98, Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF 24 July 2026 £275,000
186, Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF 21 November 2025 £290,000
166, Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF 4 August 2025 £289,950

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
40
Primary
0
Secondary
0

  1. St Mellons C.I.W. Primary School

    Welsh establishment

    278 m

  2. St Cadoc's Primary School

    Welsh establishment

    1.0 km

  3. Glan-Yr-Afon Primary

    Welsh establishment

    1.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
1,158
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 455
  • Public order 180
  • Anti social behaviour 117
  • Criminal damage and arson 112
  • Other theft 64

Census 2021

Population and age profile

Postcode residents
117

51 female, 66 male

Postcode households
53
Residents per household
2.2
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

This postcode contained 4% 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
0%

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

9

within 5 km

  • CYNCOED MEDICAL PRACTICE

    DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ

    ODS code W97010

    1.9 km

  • ST. DAVIDS MEDICAL CENTRE

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

    ODS code W97065

    1.9 km

  • BRYNDERWEN SURGERY

    CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF

    ODS code W97006

    2.0 km

  • WILLOWBROOK SURGERY

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

    ODS code W97069

    2.6 km

  • LLANEDEYRN HEALTH CENTRE

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

    ODS code W97008

    3.0 km

  • RUMNEY PRIMARY CARE CENTRE

    BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG

    ODS code W97027

    3.3 km

  • LLANISHEN COURT SURGERY

    LLANISHEN COURT, LLANISHEN, CARDIFF, CF14 5YU

    ODS code W97013

    4.5 km

  • NORTH CARDIFF MEDICAL CENTRE

    EXCALIBUR DRIVE, THORNHILL, CARDIFF, CF14 9BB

    ODS code W97015

    4.9 km

  • ROATH HOUSE SURGERY

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

    ODS code W97034

    5.0 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Heol Booths 2

    BCT · Llanedeyrn

    0.0 miles

  • Heol Booths 3

    BCT · Old St Mellons

    0.1 miles

  • Mortimer Avenue

    BCT · Old St Mellons

    0.1 miles

  • Heol Booths 1

    BCT · Old St Mellons

    0.1 miles

  • Rogers Avenue

    BCT · Old St Mellons

    0.1 miles

Evidence in context

Property market

The five-year median is £285,000 from 23 recorded sales in CF3 6YF. 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

40 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 278 m.

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

Recorded crime

1,158 published events cover 12 months, averaging 96.5 events per published month. The largest recorded category is Violence and sexual offences with 455 events.

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