CF23 9 postcode sector in the CF23 district

CF23 9 is a sector of the CF23 district: every postcode that starts CF23 9. It has 197 postcodes in use, 4 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 9 sector, and which are new since 2020

Map of every postcode in the CF23 9 sector, by new since 2020 Of the 197 postcodes in the CF23 9 sector that ONS places, 4 are new since 2020 and 193 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Penylan, Pentwyn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4161 CF23 9AA: before 2020CF23 9AB: before 2020CF23 9AD: before 2020CF23 9AE: before 2020CF23 9AF: before 2020CF23 9AG: before 2020CF23 9AH: before 2020CF23 9AJ: before 2020CF23 9AN: before 2020CF23 9AP: before 2020CF23 9AQ: before 2020CF23 9AR: before 2020CF23 9AS: before 2020CF23 9AT: before 2020CF23 9AU: before 2020CF23 9AW: before 2020CF23 9AX: before 2020CF23 9AY: before 2020CF23 9AZ: before 2020CF23 9BA: before 2020CF23 9BB: before 2020CF23 9BD: before 2020CF23 9BE: before 2020CF23 9BF: before 2020CF23 9BG: before 2020CF23 9BH: before 2020CF23 9BJ: before 2020CF23 9BL: before 2020CF23 9BN: before 2020CF23 9BP: before 2020CF23 9BQ: before 2020CF23 9BR: before 2020CF23 9BS: before 2020CF23 9BT: before 2020CF23 9BU: before 2020CF23 9BW: before 2020CF23 9BX: before 2020CF23 9BY: before 2020CF23 9BZ: before 2020CF23 9DA: before 2020CF23 9DB: before 2020CF23 9DD: before 2020CF23 9DE: before 2020CF23 9DF: before 2020CF23 9DG: before 2020CF23 9DH: before 2020CF23 9DJ: before 2020CF23 9DL: before 2020CF23 9DN: before 2020CF23 9DP: before 2020CF23 9DQ: before 2020CF23 9DR: before 2020CF23 9DS: before 2020CF23 9DT: before 2020CF23 9DU: before 2020CF23 9DW: before 2020CF23 9DX: before 2020CF23 9DY: before 2020CF23 9DZ: before 2020CF23 9EA: before 2020CF23 9EB: before 2020CF23 9ED: before 2020CF23 9EE: before 2020CF23 9EF: before 2020CF23 9EG: before 2020CF23 9EH: before 2020CF23 9EJ: before 2020CF23 9EL: before 2020CF23 9EN: before 2020CF23 9EP: before 2020CF23 9EQ: before 2020CF23 9ER: before 2020CF23 9ES: before 2020CF23 9ET: before 2020CF23 9EU: before 2020CF23 9EW: before 2020CF23 9EX: before 2020CF23 9EY: before 2020CF23 9EZ: before 2020CF23 9FA: before 2020CF23 9FB: before 2020CF23 9FD: before 2020CF23 9FE: before 2020CF23 9FF: before 2020CF23 9FG: before 2020CF23 9FH: before 2020CF23 9FJ: before 2020CF23 9FN: before 2020CF23 9HA: before 2020CF23 9HB: before 2020CF23 9HD: before 2020CF23 9HE: before 2020CF23 9HF: before 2020CF23 9HG: before 2020CF23 9HH: before 2020CF23 9HJ: before 2020CF23 9HL: before 2020CF23 9HS: before 2020CF23 9HT: before 2020CF23 9HU: before 2020CF23 9HW: before 2020CF23 9HX: before 2020CF23 9HY: before 2020CF23 9HZ: before 2020CF23 9JA: before 2020CF23 9JB: before 2020CF23 9JD: before 2020CF23 9JE: before 2020CF23 9JF: before 2020CF23 9JG: before 2020CF23 9JH: before 2020CF23 9JJ: before 2020CF23 9JN: before 2020CF23 9JP: before 2020CF23 9JQ: before 2020CF23 9JR: before 2020CF23 9JS: before 2020CF23 9JT: before 2020CF23 9JU: before 2020CF23 9JW: before 2020CF23 9LD: before 2020CF23 9LE: before 2020CF23 9LF: before 2020CF23 9LG: before 2020CF23 9LH: before 2020CF23 9LJ: before 2020CF23 9LL: before 2020CF23 9LN: before 2020CF23 9LP: before 2020CF23 9LQ: before 2020CF23 9LR: before 2020CF23 9LS: before 2020CF23 9LT: before 2020CF23 9LU: before 2020CF23 9LW: before 2020CF23 9LX: before 2020CF23 9LY: before 2020CF23 9LZ: before 2020CF23 9NA: before 2020CF23 9NB: before 2020CF23 9ND: before 2020CF23 9NE: before 2020CF23 9NF: before 2020CF23 9NG: before 2020CF23 9NH: before 2020CF23 9NJ: before 2020CF23 9NL: before 2020CF23 9NN: before 2020CF23 9NP: before 2020CF23 9NQ: before 2020CF23 9NR: before 2020CF23 9NS: before 2020CF23 9NT: before 2020CF23 9NU: before 2020CF23 9NW: before 2020CF23 9NX: before 2020CF23 9NY: before 2020CF23 9NZ: before 2020CF23 9PA: before 2020CF23 9PB: before 2020CF23 9PD: before 2020CF23 9PF: before 2020CF23 9PG: before 2020CF23 9PH: before 2020CF23 9PJ: before 2020CF23 9PL: before 2020CF23 9PN: before 2020CF23 9PP: before 2020CF23 9PQ: before 2020CF23 9PR: before 2020CF23 9PS: before 2020CF23 9PT: before 2020CF23 9PU: before 2020CF23 9PW: before 2020CF23 9PX: before 2020CF23 9PY: before 2020CF23 9PZ: before 2020CF23 9QA: before 2020CF23 9QB: before 2020CF23 9UE: before 2020CF23 9UL: before 2020CF23 9UP: before 2020CF23 9UT: before 2020CF23 9UU: before 2020CF23 9UW: before 2020CF23 9XE: before 2020CF23 9XF: before 2020CF23 9XN: before 2020CF23 9AL: new since 2020CF23 9FP: new since 2020CF23 9FQ: new since 2020CF23 9FR: new since 2020 PenylanPentwyn Map of every postcode in the CF23 9 sector, by new since 2020 Of the 197 postcodes in the CF23 9 sector that ONS places, 4 are new since 2020 and 193 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Penylan, Pentwyn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4161 PenylanPentwyn
  • New since 2020: 4
  • In use before 2020: 193

Of the 197 postcodes in the CF23 9 sector that ONS places, 4 are new since 2020 and 193 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

The 4 newest postcodes

CF23 9ALMay 2024CF23 9FRMarch 2024CF23 9FQDecember 2021CF23 9FPAugust 2021

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.

CF23 9YJ

What do homes sell for in CF23 9?

Homes in CF23 9 sold for a typical £220,000 in the 12 months to August 2026, across 103 sales, down 8.3% on the 12 months before, HM Land Registry's figures show.

£220,000 typical price, the 12 months to August 2026
£240,000 12 months to August 2025
▼ down 8.3% on the 12 months before
  • Detached £449,000 7 sales
  • Semi-detached £320,000 28 sales
  • Terraced £204,500 48 sales
  • Flat or maisonette £103,750 20 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 9. 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

Postcodes in CF23 9

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

CF23 9AACF23 9ABCF23 9ADCF23 9AECF23 9AFCF23 9AGCF23 9AHCF23 9AJCF23 9ALCF23 9ANCF23 9APCF23 9AQCF23 9ARCF23 9ASCF23 9ATCF23 9AUCF23 9AWCF23 9AXCF23 9AYCF23 9AZCF23 9BACF23 9BBCF23 9BDCF23 9BECF23 9BFCF23 9BGCF23 9BHCF23 9BJCF23 9BLCF23 9BNCF23 9BPCF23 9BQCF23 9BRCF23 9BSCF23 9BTCF23 9BUCF23 9BWCF23 9BXCF23 9BYCF23 9BZCF23 9DACF23 9DBCF23 9DDCF23 9DECF23 9DFCF23 9DGCF23 9DHCF23 9DJCF23 9DLCF23 9DNCF23 9DPCF23 9DQCF23 9DRCF23 9DSCF23 9DTCF23 9DUCF23 9DWCF23 9DXCF23 9DYCF23 9DZCF23 9EACF23 9EBCF23 9EDCF23 9EECF23 9EFCF23 9EGCF23 9EHCF23 9EJCF23 9ELCF23 9ENCF23 9EPCF23 9EQCF23 9ERCF23 9ESCF23 9ETCF23 9EUCF23 9EWCF23 9EXCF23 9EYCF23 9EZCF23 9FACF23 9FBCF23 9FDCF23 9FECF23 9FFCF23 9FGCF23 9FHCF23 9FJCF23 9FLCF23 9FNCF23 9FPCF23 9FQCF23 9FRCF23 9HACF23 9HBCF23 9HDCF23 9HECF23 9HFCF23 9HGCF23 9HHCF23 9HJCF23 9HLCF23 9HSCF23 9HTCF23 9HUCF23 9HWCF23 9HXCF23 9HYCF23 9HZCF23 9JACF23 9JBCF23 9JDCF23 9JECF23 9JFCF23 9JGCF23 9JHCF23 9JJCF23 9JNCF23 9JPCF23 9JQCF23 9JRCF23 9JSCF23 9JTCF23 9JUCF23 9JWCF23 9JXCF23 9JYCF23 9JZCF23 9LDCF23 9LECF23 9LFCF23 9LGCF23 9LHCF23 9LJCF23 9LLCF23 9LNCF23 9LPCF23 9LQCF23 9LRCF23 9LSCF23 9LTCF23 9LUCF23 9LWCF23 9LXCF23 9LYCF23 9LZCF23 9NACF23 9NBCF23 9NDCF23 9NECF23 9NFCF23 9NGCF23 9NHCF23 9NJCF23 9NLCF23 9NNCF23 9NPCF23 9NQCF23 9NRCF23 9NSCF23 9NTCF23 9NUCF23 9NWCF23 9NXCF23 9NYCF23 9NZCF23 9PACF23 9PBCF23 9PDCF23 9PFCF23 9PGCF23 9PHCF23 9PJCF23 9PLCF23 9PNCF23 9PPCF23 9PQCF23 9PRCF23 9PSCF23 9PTCF23 9PUCF23 9PWCF23 9PXCF23 9PYCF23 9PZCF23 9QACF23 9QBCF23 9UECF23 9ULCF23 9UPCF23 9UTCF23 9UUCF23 9UWCF23 9XECF23 9XFCF23 9XNCF23 9YJ

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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