CF23 8NN maps, stats, and open data
CF23 8NN lies on Charnwood Drive in Pontprennau, Cardiff. CF23 8NN is located in the Pontprennau and Old St Mellons electoral ward, within the unitary authority of Cardiff and the Welsh Parliamentary constituency of Cardiff North. The Local Health Board is Cardiff and Vale University and the police force is South Wales. This postcode has been in use since June 1999.
CF23 8NN maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CF23 8NN geodata
| Easting | 321465 |
| Northing | 182117 |
| Latitude | 51.532476 |
| Longitude | -3.133602 |
Where is CF23 8NN?
| Street | Charnwood Drive |
| Locality | Pontprennau |
| Town/City | Cardiff |
| Country | Wales |
| Postcode District | CF23 |
CF23 8NN Elevation
Elevation or altitude of CF23 8NN as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 40m | 131ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Pontprennau And Old St Mellons |
|---|---|
| Constituency | Cardiff North |
House Prices
Sales of detached houses in CF23 8NN
2026 16 MAR £330,000 |
2025 19 AUG £540,600 |
2025 27 JAN £305,000 |
2024 25 OCT £328,000 |
2023 20 DEC £325,000 |
2021 30 JUN £350,000 |
2020 30 OCT £320,000 |
2018 28 FEB £232,500 |
2018 1 FEB £315,000 |
2017 16 NOV £300,000 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to CF23 8NN
| Hollington Drive (Clonakilty Way) | Pontprennau | 337m |
| Asda (Heol Pontprennau) | Pontprennau | 342m |
| Heol Pontprennau | Pontprennau | 346m |
| Heol Pontprennau | Pontprennau | 364m |
| Baltimore Close (Clonakilty Way) | Pontprennau | 370m |
Nearest railway stations to CF23 8NN
| Llanishen Station | 3.4km |
| Heath High Level Station | 3.8km |
| Heath Low Level Station | 3.8km |
Broadband
Broadband access in CF23 8NN (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 100.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in CF23 8NN (2019 data)
Download
| Median download speed | 78.1Mbps |
| Average download speed | 87.9Mbps |
| Maximum download speed | 200.00Mbps |
Upload
| Median upload speed | 10.0Mbps |
| Average upload speed | 11.9Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CF23 8NN (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
CF23 8NN gas and electricity consumption
Estimated total energy consumption in CF23 8NN by fuel type, 2015.
Gas
| Consumption (kWh) | 515,992 |
|---|---|
| Meter count | 33 |
| Mean (kWh/meter) | 15,636 |
| Median (kWh/meter) | 15,013 |
Electricity
| Consumption (kWh) | 130,364 |
|---|---|
| Meter count | 32 |
| Mean (kWh/meter) | 4,074 |
| Median (kWh/meter) | 3,610 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CF23 8NN, for 2015.
- Meter count: The total number of meters in CF23 8NN.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
8.8% of Welsh postcodes are less deprived than CF23 8NN:Food Standards Agency
Three nearest food hygiene ratings to CF23 8NN (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CF23 8NN
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Ball Road | 17:15 | 11:00 | 1,033m |
| Llandennis Avennue | 17:30 | 12:30 | 1,342m |
| Coed Y Gores | 17:30 | 11:45 | 1,375m |
CF23 8NN ITL and CF23 8NN LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for CF23 8NN:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL2 | East Wales |
| ITL 3 Code | Name |
| TLL22 | Cardiff and Vale of Glamorgan |
| LAU 1 Code | Name |
| W06000015 | Cardiff |
CF23 8NN census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for CF23 8NN:
| Code | Name | |
|---|---|---|
| OA | W00009496 | |
| LSOA | W01001843 | Cardiff 003C |
| MSOA | W02000369 | Cardiff 003 |
Nearest postcodes to CF23 8NN
| CF23 8NH | Cowslip Close | 85m |
| CF23 8LN | Barnfield Close | 90m |
| CF23 8NG | Acorn Grove | 123m |
| CF23 8QG | Cottingham Drive | 130m |
| CF23 8NJ | Heol Camddwr | 133m |
| CF23 8NY | Harefield Close | 144m |
| CF23 8NX | Bramshill Drive | 156m |
| CF23 8NW | Wain Close | 178m |
| CF23 8QF | Speedwell Close | 182m |
| CF23 8PH | Idencroft Close | 187m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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