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, and which are new since 2020

Map of every postcode in the CF23 7 sector, by new since 2020 Of the 99 postcodes in the CF23 7 sector that ONS places, 99 were in use before 2020. 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: before 2020CF23 7AB: before 2020CF23 7AD: before 2020CF23 7AE: before 2020CF23 7AF: before 2020CF23 7AG: before 2020CF23 7AH: before 2020CF23 7AN: before 2020CF23 7AP: before 2020CF23 7AQ: before 2020CF23 7AR: before 2020CF23 7AS: before 2020CF23 7AT: before 2020CF23 7AU: before 2020CF23 7BA: before 2020CF23 7BB: before 2020CF23 7BD: before 2020CF23 7BE: before 2020CF23 7BG: before 2020CF23 7BH: before 2020CF23 7BJ: before 2020CF23 7BL: before 2020CF23 7BN: before 2020CF23 7BP: before 2020CF23 7BQ: before 2020CF23 7BR: before 2020CF23 7BS: before 2020CF23 7BT: before 2020CF23 7BU: before 2020CF23 7BW: before 2020CF23 7DA: before 2020CF23 7DB: before 2020CF23 7DD: before 2020CF23 7DE: before 2020CF23 7DF: before 2020CF23 7DG: before 2020CF23 7DH: before 2020CF23 7DJ: before 2020CF23 7DL: before 2020CF23 7DN: before 2020CF23 7DP: before 2020CF23 7DQ: before 2020CF23 7DR: before 2020CF23 7DS: before 2020CF23 7DT: before 2020CF23 7DU: before 2020CF23 7DW: before 2020CF23 7DX: before 2020CF23 7DY: before 2020CF23 7EA: before 2020CF23 7EB: before 2020CF23 7ED: before 2020CF23 7EE: before 2020CF23 7EF: before 2020CF23 7EG: before 2020CF23 7EH: before 2020CF23 7EJ: before 2020CF23 7EL: before 2020CF23 7EN: before 2020CF23 7EP: before 2020CF23 7ER: before 2020CF23 7ES: before 2020CF23 7EU: before 2020CF23 7EW: before 2020CF23 7EX: before 2020CF23 7EY: before 2020CF23 7EZ: before 2020CF23 7FA: before 2020CF23 7FB: before 2020CF23 7FD: before 2020CF23 7FE: before 2020CF23 7HA: before 2020CF23 7HB: before 2020CF23 7HF: before 2020CF23 7HG: before 2020CF23 7HH: before 2020CF23 7HJ: before 2020CF23 7HL: before 2020CF23 7HN: before 2020CF23 7HP: before 2020CF23 7HQ: before 2020CF23 7HR: before 2020CF23 7HS: before 2020CF23 7HT: before 2020CF23 7HU: before 2020CF23 7HX: before 2020CF23 7JA: before 2020CF23 7JB: before 2020CF23 7JD: before 2020CF23 7JE: before 2020CF23 7JF: before 2020CF23 7JG: before 2020CF23 7JN: before 2020CF23 7JP: before 2020CF23 7SD: before 2020CF23 7XB: before 2020CF23 7XG: before 2020CF23 7XH: before 2020 Pentwyn Map of every postcode in the CF23 7 sector, by new since 2020 Of the 99 postcodes in the CF23 7 sector that ONS places, 99 were in use before 2020. 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
  • New since 2020: 0
  • In use before 2020: 99

Of the 99 postcodes in the CF23 7 sector that ONS places, 99 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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

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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