CF23 postcode district: Cardiff and around

CF23 is a postcode district in Wales, with 908 postcodes in use in 6 sectors. It has postcodes in Cardiff. Its council is Cardiff.

Postcodes in use: 908
Sectors: 6
Council: Cardiff
Places: Cardiff

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in CF23, by gigabit broadband

No home or business can get gigabit: 31
Some can get gigabit: 82
Every home and business can get gigabit: 760
Ofcom gives no figure: 35

Of the 908 postcodes in CF23 that ONS places, 31 have no home or business that can get gigabit, 82 have some that can, 760 can all get it and 35 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.5145, longitude -3.1556. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; gigabit: Ofcom, Connected Nations, Spring 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Postcodes without gigabit

31 postcodes here have no gigabit. These are the 12 first in postcode order.

CF23 5LH CF23 5YB CF23 5YG CF23 6DL CF23 6JB CF23 6NX CF23 6QD CF23 6XL CF23 7AH CF23 7EZ CF23 8AA CF23 8AB

What broadband can you get in CF23?

Ofcom reports on 873 of the 908 postcodes in CF23. At 760 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit760 of 873

Postcodes where every home can get superfast845 of 873

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

What do homes sell for in CF23?

Homes in CF23 sold for a typical £281,750 in the 12 months to August 2026, across 454 sales, down 6.1% on the 12 months before, HM Land Registry's figures show.

£281,750 typical price, the 12 months to August 2026

£300,000 12 months to August 2025

▼ down 6.1% on the 12 months before

Detached £520,000 92 sales
Semi-detached £315,000 111 sales
Terraced £245,000 160 sales
Flat or maisonette £175,000 91 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it