CF11 postcode district: Cardiff and around

CF11 is a postcode district in Wales, with 870 postcodes in use in 6 sectors. It has postcodes in Cardiff and Penarth. It is split between 2 councils: Cardiff (860 postcodes) and Vale of Glamorgan (10).

Postcodes in use: 870
Sectors: 6
Councils: 2 councils
Places: 2 places

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

Every postcode in CF11, by gigabit broadband

No home or business can get gigabit: 41
Some can get gigabit: 129
Every home and business can get gigabit: 612
Ofcom gives no figure: 88
Outline: where 5 or more postcodes without gigabit lie together

Of the 870 postcodes in CF11 that ONS places, 41 have no home or business that can get gigabit, 129 have some that can, 612 can all get it and 88 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.4728, longitude -3.1925. 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

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

CF11 0AX CF11 0AY CF11 0BD CF11 0JP CF11 0JS CF11 0LE CF11 0LF CF11 6DD CF11 6PE CF11 6YY CF11 7HU CF11 7HW

Where the postcodes without gigabit lie together

5 postcodes without gigabit, outlined on the map. CF11 8UE, is the one nearest the middle of them.

What broadband can you get in CF11?

Ofcom reports on 782 of the 870 postcodes in CF11. At 612 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit612 of 782

Postcodes where every home can get superfast745 of 782

Postcodes where some cannot get decent broadband2 of 782

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 CF11?

Homes in CF11 sold for a typical £234,500 in the 12 months to August 2026, across 428 sales, down 0.8% on the 12 months before, HM Land Registry's figures show.

£234,500 typical price, the 12 months to August 2026

12 months to August 2025: £236,500
12 months to August 2026: £234,500

▼ down 0.8% on the 12 months before

Detached£385,000 13 sales

Semi-detached£310,000 41 sales

Terraced£290,000 201 sales

Flat or maisonette£168,000 173 sales

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