CF23 7 postcode sector in the CF23 district

CF23 7 is a sector of the CF23 district: every postcode that starts CF23 7. It has 99 postcodes in use, 3 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CF23 7 sector, by gigabit broadband

Map of every postcode in the CF23 7 sector, by gigabit broadband Of the 99 postcodes in the CF23 7 sector that ONS places, 2 have no home or business that can get gigabit, 11 have some that can, 85 can all get it and 1 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Pentwyn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A48 CF23 7AA: gigabit for allCF23 7AB: gigabit for allCF23 7AD: gigabit for allCF23 7AE: gigabit for allCF23 7AG: gigabit for allCF23 7AN: gigabit for allCF23 7AP: gigabit for allCF23 7AQ: gigabit for allCF23 7AR: gigabit for allCF23 7AS: gigabit for allCF23 7AT: gigabit for allCF23 7AU: gigabit for allCF23 7BA: gigabit for allCF23 7BB: gigabit for allCF23 7BD: gigabit for allCF23 7BE: gigabit for allCF23 7BG: gigabit for allCF23 7BH: gigabit for allCF23 7BJ: gigabit for allCF23 7BL: gigabit for allCF23 7BN: gigabit for allCF23 7BP: gigabit for allCF23 7BQ: gigabit for allCF23 7BR: gigabit for allCF23 7BS: gigabit for allCF23 7BT: gigabit for allCF23 7BU: gigabit for allCF23 7BW: gigabit for allCF23 7DA: gigabit for allCF23 7DB: gigabit for allCF23 7DD: gigabit for allCF23 7DE: gigabit for allCF23 7DF: gigabit for allCF23 7DG: gigabit for allCF23 7DH: gigabit for allCF23 7DJ: gigabit for allCF23 7DL: gigabit for allCF23 7DN: gigabit for allCF23 7DP: gigabit for allCF23 7DQ: gigabit for allCF23 7DR: gigabit for allCF23 7DS: gigabit for allCF23 7DT: gigabit for allCF23 7DU: gigabit for allCF23 7DW: gigabit for allCF23 7DX: gigabit for allCF23 7DY: gigabit for allCF23 7EA: gigabit for allCF23 7EB: gigabit for allCF23 7ED: gigabit for allCF23 7EE: gigabit for allCF23 7EF: gigabit for allCF23 7EG: gigabit for allCF23 7EJ: gigabit for allCF23 7EL: gigabit for allCF23 7EN: gigabit for allCF23 7EP: gigabit for allCF23 7ER: gigabit for allCF23 7ES: gigabit for allCF23 7EU: gigabit for allCF23 7EW: gigabit for allCF23 7EX: gigabit for allCF23 7FE: gigabit for allCF23 7HA: gigabit for allCF23 7HG: gigabit for allCF23 7HH: gigabit for allCF23 7HJ: gigabit for allCF23 7HL: gigabit for allCF23 7HN: gigabit for allCF23 7HP: gigabit for allCF23 7HQ: gigabit for allCF23 7HR: gigabit for allCF23 7HS: gigabit for allCF23 7HT: gigabit for allCF23 7HU: gigabit for allCF23 7HX: gigabit for allCF23 7JA: gigabit for allCF23 7JB: gigabit for allCF23 7JD: gigabit for allCF23 7JE: gigabit for allCF23 7JF: gigabit for allCF23 7JG: gigabit for allCF23 7JN: gigabit for allCF23 7JP: gigabit for allCF23 7XB: gigabit for allCF23 7AF: some gigabitCF23 7EH: some gigabitCF23 7EY: some gigabitCF23 7FA: some gigabitCF23 7FB: some gigabitCF23 7FD: some gigabitCF23 7HB: some gigabitCF23 7HF: some gigabitCF23 7SD: some gigabitCF23 7XG: some gigabitCF23 7XH: some gigabitCF23 7AH: no gigabitCF23 7EZ: no gigabit Pentwyn Map of every postcode in the CF23 7 sector, by gigabit broadband Of the 99 postcodes in the CF23 7 sector that ONS places, 2 have no home or business that can get gigabit, 11 have some that can, 85 can all get it and 1 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Pentwyn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A48 Pentwyn
  • No home or business can get gigabit: 2
  • Some can get gigabit: 11
  • Every home and business can get gigabit: 85
  • Ofcom gives no figure: 1

Of the 99 postcodes in the CF23 7 sector that ONS places, 2 have no home or business that can get gigabit, 11 have some that can, 85 can all get it and 1 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. Names in italics are council wards: we hold no town or village names here.

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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

What do homes sell for in CF23 7?

Homes in CF23 7 sold for a typical £225,000 in the 12 months to August 2026, across 77 sales, up 1.2% on the 12 months before, HM Land Registry's figures show.

£225,000 typical price, the 12 months to August 2026
£222,250 12 months to August 2025
▲ up 1.2% on the 12 months before
  • Detached 4 sales, too few to price
  • Semi-detached £269,000 18 sales
  • Terraced £215,000 41 sales
  • Flat or maisonette £147,500 14 sales

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

Standard sales of homes at market value at the postcodes that start CF23 7. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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