CF23 8 postcode sector in the CF23 district

CF23 8 is a sector of the CF23 district: every postcode that starts CF23 8. It has 146 postcodes in use, 13 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 8 sector, and which are new since 2020

Map of every postcode in the CF23 8 sector, by new since 2020 Of the 146 postcodes in the CF23 8 sector that ONS places, 2 are new since 2020 and 144 were in use before 2020. Places named: Pontprennau and Old St Mellons. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A48M4A4232 CF23 8AA: before 2020CF23 8AB: before 2020CF23 8AH: before 2020CF23 8AJ: before 2020CF23 8AL: before 2020CF23 8AN: before 2020CF23 8AS: before 2020CF23 8AT: before 2020CF23 8AW: before 2020CF23 8AX: before 2020CF23 8AY: before 2020CF23 8AZ: before 2020CF23 8BA: before 2020CF23 8BB: before 2020CF23 8BX: before 2020CF23 8BY: before 2020CF23 8BZ: before 2020CF23 8EP: before 2020CF23 8EQ: before 2020CF23 8ET: before 2020CF23 8FD: before 2020CF23 8FE: before 2020CF23 8FF: before 2020CF23 8FG: before 2020CF23 8FJ: before 2020CF23 8FP: before 2020CF23 8FR: before 2020CF23 8FX: before 2020CF23 8GL: before 2020CF23 8GW: before 2020CF23 8HA: before 2020CF23 8HB: before 2020CF23 8HD: before 2020CF23 8HE: before 2020CF23 8HG: before 2020CF23 8HW: before 2020CF23 8LA: before 2020CF23 8LB: before 2020CF23 8LD: before 2020CF23 8LE: before 2020CF23 8LF: before 2020CF23 8LG: before 2020CF23 8LH: before 2020CF23 8LJ: before 2020CF23 8LL: before 2020CF23 8LN: before 2020CF23 8LP: before 2020CF23 8LQ: before 2020CF23 8LR: before 2020CF23 8LS: before 2020CF23 8LT: before 2020CF23 8LU: before 2020CF23 8LW: before 2020CF23 8LX: before 2020CF23 8LY: before 2020CF23 8LZ: before 2020CF23 8NA: before 2020CF23 8NB: before 2020CF23 8ND: before 2020CF23 8NE: before 2020CF23 8NF: before 2020CF23 8NG: before 2020CF23 8NH: before 2020CF23 8NJ: before 2020CF23 8NL: before 2020CF23 8NN: before 2020CF23 8NP: before 2020CF23 8NQ: before 2020CF23 8NR: before 2020CF23 8NS: before 2020CF23 8NT: before 2020CF23 8NU: before 2020CF23 8NW: before 2020CF23 8NX: before 2020CF23 8NY: before 2020CF23 8NZ: before 2020CF23 8PA: before 2020CF23 8PB: before 2020CF23 8PD: before 2020CF23 8PE: before 2020CF23 8PF: before 2020CF23 8PG: before 2020CF23 8PH: before 2020CF23 8PJ: before 2020CF23 8PL: before 2020CF23 8PN: before 2020CF23 8PP: before 2020CF23 8PQ: before 2020CF23 8PR: before 2020CF23 8PS: before 2020CF23 8PT: before 2020CF23 8PU: before 2020CF23 8PW: before 2020CF23 8PX: before 2020CF23 8PY: before 2020CF23 8PZ: before 2020CF23 8QA: before 2020CF23 8QB: before 2020CF23 8QD: before 2020CF23 8QE: before 2020CF23 8QF: before 2020CF23 8QG: before 2020CF23 8RA: before 2020CF23 8RB: before 2020CF23 8RD: before 2020CF23 8RE: before 2020CF23 8RF: before 2020CF23 8RG: before 2020CF23 8RH: before 2020CF23 8RJ: before 2020CF23 8RN: before 2020CF23 8RP: before 2020CF23 8RQ: before 2020CF23 8RR: before 2020CF23 8RS: before 2020CF23 8RT: before 2020CF23 8RU: before 2020CF23 8RW: before 2020CF23 8RX: before 2020CF23 8SA: before 2020CF23 8SB: before 2020CF23 8SD: before 2020CF23 8SE: before 2020CF23 8SF: before 2020CF23 8SG: before 2020CF23 8SH: before 2020CF23 8SJ: before 2020CF23 8SL: before 2020CF23 8SN: before 2020CF23 8SP: before 2020CF23 8SQ: before 2020CF23 8WB: before 2020CF23 8XA: before 2020CF23 8XE: before 2020CF23 8XG: before 2020CF23 8XH: before 2020CF23 8XJ: before 2020CF23 8XL: before 2020CF23 8XQ: before 2020CF23 8XR: before 2020CF23 8FN: new since 2020CF23 8HJ: new since 2020 Pontprennau and Old St Mellons Map of every postcode in the CF23 8 sector, by new since 2020 Of the 146 postcodes in the CF23 8 sector that ONS places, 2 are new since 2020 and 144 were in use before 2020. Places named: Pontprennau and Old St Mellons. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A48M4 Pontprennau and Old St Mellons
  • New since 2020: 2
  • In use before 2020: 144

Of the 146 postcodes in the CF23 8 sector that ONS places, 2 are new since 2020 and 144 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 2 newest postcodes

CF23 8HJApril 2021CF23 8FNFebruary 2021

What do homes sell for in CF23 8?

Homes in CF23 8 sold for a typical £297,500 in the 12 months to August 2026, across 80 sales, down 1.3% on the 12 months before, HM Land Registry's figures show.

£297,500 typical price, the 12 months to August 2026
£301,500 12 months to August 2025
▼ down 1.3% on the 12 months before
  • Detached £390,000 27 sales
  • Semi-detached £280,000 21 sales
  • Terraced £244,000 24 sales
  • Flat or maisonette £161,000 8 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 8. 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 8

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 8AACF23 8ABCF23 8AHCF23 8AJCF23 8ALCF23 8ANCF23 8ASCF23 8ATCF23 8AWCF23 8AXCF23 8AYCF23 8AZCF23 8BACF23 8BBCF23 8BXCF23 8BYCF23 8BZCF23 8EPCF23 8EQCF23 8ETCF23 8FDCF23 8FECF23 8FFCF23 8FGCF23 8FJCF23 8FNCF23 8FPCF23 8FRCF23 8FXCF23 8GLCF23 8GWCF23 8HACF23 8HBCF23 8HDCF23 8HECF23 8HGCF23 8HJCF23 8HWCF23 8LACF23 8LBCF23 8LDCF23 8LECF23 8LFCF23 8LGCF23 8LHCF23 8LJCF23 8LLCF23 8LNCF23 8LPCF23 8LQCF23 8LRCF23 8LSCF23 8LTCF23 8LUCF23 8LWCF23 8LXCF23 8LYCF23 8LZCF23 8NACF23 8NBCF23 8NDCF23 8NECF23 8NFCF23 8NGCF23 8NHCF23 8NJCF23 8NLCF23 8NNCF23 8NPCF23 8NQCF23 8NRCF23 8NSCF23 8NTCF23 8NUCF23 8NWCF23 8NXCF23 8NYCF23 8NZCF23 8PACF23 8PBCF23 8PDCF23 8PECF23 8PFCF23 8PGCF23 8PHCF23 8PJCF23 8PLCF23 8PNCF23 8PPCF23 8PQCF23 8PRCF23 8PSCF23 8PTCF23 8PUCF23 8PWCF23 8PXCF23 8PYCF23 8PZCF23 8QACF23 8QBCF23 8QDCF23 8QECF23 8QFCF23 8QGCF23 8RACF23 8RBCF23 8RDCF23 8RECF23 8RFCF23 8RGCF23 8RHCF23 8RJCF23 8RNCF23 8RPCF23 8RQCF23 8RRCF23 8RSCF23 8RTCF23 8RUCF23 8RWCF23 8RXCF23 8SACF23 8SBCF23 8SDCF23 8SECF23 8SFCF23 8SGCF23 8SHCF23 8SJCF23 8SLCF23 8SNCF23 8SPCF23 8SQCF23 8WBCF23 8WJCF23 8WRCF23 8WSCF23 8WXCF23 8XACF23 8XECF23 8XGCF23 8XHCF23 8XJCF23 8XLCF23 8XQCF23 8XR

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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