Property market
The five-year median is £455,000 from 5 recorded sales in CF3 5DF. 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.
Pontprennau and Old St Mellons · Cardiff · Wales
Updated September 2026
Compare this postcode| Address | Date | Price |
|---|---|---|
| 33, Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF | 17 July 2026 | £480,000 |
| 1, Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF | 30 May 2025 | £565,000 |
| 17, Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF | 13 September 2024 | £390,000 |
Within 3.1 miles of this postcode
St Johns College
Welsh establishment
Oakfield Primary School
Welsh establishment
Pen-Y-Bryn Primary School
Welsh establishment
Within 1 mile of this postcode
Census 2021
51 female, 41 male
1,945 residents
1,032 residents
2,375 residents
2,189 residents
1,274 residents
This postcode contained 1% 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.
Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.
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.
8
within 5 km
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
ODS code W97006
733 m
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
ODS code W97069
1.5 km
PONTPRENNAU MEDICAL CENTR, PENTWYN DRIVE, CARDIFF, CF23 7SD
ODS code W97065
2.4 km
BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG
ODS code W97027
2.5 km
DARTINGTON DRIVE, PONTPRENNAU, CARDIFF, CF23 8SQ
ODS code W97010
2.7 km
LLAN HEALTHCARE, WELLBEING HUB @ MAELFA, ROUND WOOD, LLANEDEYRN, CARDIFF, CF23 9PF
ODS code W97008
3.1 km
STERLING CLOSE, FFORDD PENGAM PENGAM GREE, SPLOTT, CARDIFF, CF24 2HB
ODS code W97048
4.4 km
100 PEN-Y-LAN ROAD, PENYLAN, CARDIFF, CF23 5RH
ODS code W97034
4.8 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 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.
Bluebell Inn
BCT · Old St Mellons
Llaneirwg Way
BCT · Old St Mellons
Bluebell Inn
BCT · Old St Mellons
Llaneirwg Way
BCT · Old St Mellons
Bluebell Drive
BCT · Llanrumney
The five-year median is £455,000 from 5 recorded sales in CF3 5DF. 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.
36 open schools are in scope, including 0 primary and 0 secondary schools. St Johns College is the nearest published school at 103 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
2,988 published events cover 12 months, averaging 249 events per published month. The largest recorded category is Violence and sexual offences with 1,138 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.