Property market
The five-year median is £249,995 from 3,426 recorded sales in CF3. 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
UK postcode district
Part of Cardiff
Updated September 2026
District overview
- Postcode units
- 1,973
- Current units
- 922
- Coordinate coverage
- 100%
- Electoral wards
- 9
Coverage context
- Countries represented
- Wales
- English regions represented
- W99999999
- Local authority codes
- 3
- Terminated postcode units
- 1,051
Postcode sectors in CF3
Choose a sector to browse its complete postcode-unit directory.
Property
21,015 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 98, Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF | 24 July 2026 | £275,000 |
| 33, Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF | 17 July 2026 | £480,000 |
| 197, Wentloog Road, Rumney, Cardiff, CF3 3HF | 17 July 2026 | £170,000 |
Schools
Across this district
- Open schools
- 19
- Primary
- 0
- Secondary
- 0
Recorded crime
Across this district
- Published events
- 4,097
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 1,504
- Public order 476
- Shoplifting 453
- Anti social behaviour 445
- Criminal damage and arson 370
Census 2021
Population and age profile
- CF3 usual residents
- 46,038
- Age-profile population
- 46,197
Age bands in CF3
Postcode district- Age 0 to 14
- 21.4%
- 9,902 residents
- Age 15 to 24
- 11.3%
- 5,207 residents
- Age 25 to 44
- 28%
- 12,928 residents
- Age 45 to 64
- 24.2%
- 11,191 residents
- Age 65 and over
- 15.1%
- 6,969 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
The median Ofcom availability percentage across 915 current postcode units in this district. Each postcode is weighted equally, not by premises.
- 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
- 24.4%
In this district, 860 postcode units had 100% superfast coverage, 789 postcode units had 100% gigabit-capable coverage, 1 postcode unit had at least some premises without decent fixed or fixed-wireless access.
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, coverage at January 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
3
in this district
BRYNDERWEN SURGERY
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
ODS code W97006
RUMNEY PRIMARY CARE CENTRE
BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG
ODS code W97027
WILLOWBROOK SURGERY
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
ODS code W97069
Evidence in context
Schools
19 open schools are in scope, including 0 primary and 0 secondary schools.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
4,097 published events cover 12 months, averaging 341 events per published month. The largest recorded category is Violence and sexual offences with 1,504 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.