CF23 8NB maps, stats, and open data
CF23 8NB lies on Clos Nant Glaswg in Pontprennau, Cardiff. CF23 8NB 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 8NB maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CF23 8NB geodata
| Easting | 320440 |
| Northing | 182444 |
| Latitude | 51.535272 |
| Longitude | -3.148450 |
Where is CF23 8NB?
| Street | Clos Nant Glaswg |
| Locality | Pontprennau |
| Town/City | Cardiff |
| Country | Wales |
| Postcode District | CF23 |
CF23 8NB Elevation
Elevation or altitude of CF23 8NB as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 60m | 197ft |
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 8NB
2025 29 AUG £515,000 |
2024 19 DEC £345,000 |
2024 7 NOV £390,000 |
2024 24 MAY £405,000 |
24, CLOS NANT GLASWG, PONTPRENNAU, CARDIFF, CF23 8NB 2022 28 OCT £382,000 |
2022 9 SEP £340,000 |
2021 24 AUG £394,000 |
2021 30 JUL £375,000 |
2021 2 JUL £360,000 |
2021 19 FEB £292,000 |
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 8NB
| Clos Cwm Du (Heol Glandulais) | Pontprennau | 285m |
| Clos Cwm Du (Heol Glandulais) | Pontprennau | 347m |
| Community Centre (Heol Pontprennau) | Pontprennau | 405m |
| Community Centre (Heol Pontprennau) | Pontprennau | 422m |
| Sindercombe Cl (Heol Glandulais) | Pontprennau | 446m |
Nearest railway stations to CF23 8NB
| Llanishen Station | 2.3km |
| Lisvane & Thornhill Station | 2.8km |
| Heath High Level Station | 3.1km |
Broadband
Broadband access in CF23 8NB (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 | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in CF23 8NB (2019 data)
Download
| Median download speed | 40.0Mbps |
| Average download speed | 46.0Mbps |
| Maximum download speed | 80.00Mbps |
Upload
| Median upload speed | 10.0Mbps |
| Average upload speed | 11.6Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CF23 8NB (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 8NB gas and electricity consumption
Estimated total energy consumption in CF23 8NB by fuel type, 2015.
Gas
| Consumption (kWh) | 771,490 |
|---|---|
| Meter count | 48 |
| Mean (kWh/meter) | 16,073 |
| Median (kWh/meter) | 15,625 |
Electricity
| Consumption (kWh) | 188,803 |
|---|---|
| Meter count | 46 |
| Mean (kWh/meter) | 4,104 |
| Median (kWh/meter) | 3,640 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CF23 8NB, for 2015.
- Meter count: The total number of meters in CF23 8NB.
- 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
10% of Welsh postcodes are less deprived than CF23 8NB:Food Standards Agency
Three nearest food hygiene ratings to CF23 8NB (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CF23 8NB
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Llandennis Avennue | 17:30 | 12:30 | 684m |
| Bryn Celyn | 17:30 | 11:30 | 1,563m |
| Cyncoed Road Post Office | 18:30 | 12:00 | 1,640m |
CF23 8NB ITL and CF23 8NB 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 8NB:
| 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 8NB 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 8NB:
| Code | Name | |
|---|---|---|
| OA | W00009490 | |
| LSOA | W01001841 | Cardiff 003A |
| MSOA | W02000369 | Cardiff 003 |
Nearest postcodes to CF23 8NB
| CF23 8ND | Clos Nant Coslech | 70m |
| CF23 8NA | Clos Nant Mwlan | 105m |
| CF23 8RR | Claverton Way | 135m |
| CF14 0PF | Ty Draw Road | 145m |
| CF23 8NE | Butterfield Drive | 167m |
| CF23 8GW | Maes Y Wennol | 168m |
| CF23 8LG | Clos Nant Y Cwm | 198m |
| CF23 8NF | Evenwood Close | 202m |
| CF23 8QB | Heol Ty Ffynnon | 226m |
| CF23 8LJ | Maes Yr Hedydd | 232m |
- 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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