Property market
The five-year median is £282,200 from 3 recorded sales in CF3 5SW. 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 5SW
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 5
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- CF3 5SW
- Status
- Current
- Introduced
- 1 June 1999
- Terminated
- Not published
- Postcode area
- CF
- Postcode district
- CF3
- Postcode sector
- CF3 5
- Latitude
- 51.531421
- Longitude
- -3.101031
- British National Grid easting
- 323,723
- British National Grid northing
- 181,965
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
29 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 6, Melrose Close, Old St Mellons, Cardiff, CF3 5SW | 13 April 2026 | £282,200 |
| 19a, Melrose Close, Old St Mellons, Cardiff, CF3 5SW | 27 March 2024 | £275,000 |
| 10, Melrose Close, Old St Mellons, Cardiff, CF3 5SW | 20 September 2022 | £350,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 29
- Primary
- 0
- Secondary
- 0
- 479 m
Bishop Childs C.I.W. Primary School
Welsh establishment
- 760 m
St Johns College
Welsh establishment
- 923 m
Oakfield Primary School
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 1,760
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 706
- Public order 224
- Anti social behaviour 217
- Criminal damage and arson 188
- Other theft 94
Census 2021
Population and age profile
- Postcode residents
- 59
- Postcode households
- 26
- Residents per household
- 2.3
- CF3 5 residents
- 9,019
33 female, 26 male
Age bands in CF3 5
Wider postcode sector- Age 0 to 14
- 22.1%
- Age 15 to 24
- 11.7%
- Age 25 to 44
- 26.9%
- Age 45 to 64
- 24.8%
- Age 65 and over
- 14.5%
1,945 residents
1,032 residents
2,375 residents
2,189 residents
1,274 residents
This postcode contained 0.7% of the sector's usual residents on Census Day. The age profile describes the wider CF3 5 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
6
within 5 km
BRYNDERWEN SURGERY
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
ODS code W97006
661 m
WILLOWBROOK SURGERY
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
ODS code W97069
1.0 km
ST. DAVIDS MEDICAL CENTRE
PONTPRENNAU MEDICAL CENTR, PENTWYN DRIVE, CARDIFF, CF23 7SD
ODS code W97065
3.2 km
RUMNEY PRIMARY CARE CENTRE
BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG
ODS code W97027
3.3 km
CYNCOED MEDICAL PRACTICE
DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ
ODS code W97010
3.4 km
LLANEDEYRN HEALTH CENTRE
LLAN HEALTHCARE, WELLBEING HUB @ MAELFA, ROUND WOOD, LLANEDEYRN, CARDIFF, CF23 9PF
ODS code W97008
3.9 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
- 0.2 miles
Wern Fawr Lane
BCT · Old St Mellons
- 0.2 miles
Wyevale Garden Centre
BCT · St Mellons
- 0.2 miles
Vaindre Lane
BCT · Old St Mellons
- 0.2 miles
Wyevale Garden Centre
BCT · St Mellons
- 0.3 miles
Heritage Park
BCT · St Mellons
Evidence in context
Schools
29 open schools are in scope, including 0 primary and 0 secondary schools. Bishop Childs C.I.W. Primary School is the nearest published school at 479 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
1,760 published events cover 12 months, averaging 146.667 events per published month. The largest recorded category is Violence and sexual offences with 706 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.