CF45 3 postcode sector in the CF45 district

CF45 3 is a sector of the CF45 district: every postcode that starts CF45 3. It has 204 postcodes in use, one of them a large-user postcode. 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 CF45 3 sector, and which are new since 2020

Map of every postcode in the CF45 3 sector, by new since 2020 Of the 204 postcodes in the CF45 3 sector that ONS places, 204 were in use before 2020. Places named: Mountain Ash. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4059 CF45 3AA: before 2020CF45 3AB: before 2020CF45 3AD: before 2020CF45 3AE: before 2020CF45 3AF: before 2020CF45 3AG: before 2020CF45 3AH: before 2020CF45 3AJ: before 2020CF45 3AL: before 2020CF45 3AN: before 2020CF45 3AP: before 2020CF45 3AR: before 2020CF45 3AS: before 2020CF45 3AT: before 2020CF45 3AU: before 2020CF45 3AW: before 2020CF45 3AY: before 2020CF45 3BA: before 2020CF45 3BB: before 2020CF45 3BD: before 2020CF45 3BE: before 2020CF45 3BG: before 2020CF45 3BH: before 2020CF45 3BL: before 2020CF45 3BN: before 2020CF45 3BP: before 2020CF45 3BS: before 2020CF45 3BT: before 2020CF45 3BU: before 2020CF45 3BW: before 2020CF45 3BX: before 2020CF45 3BY: before 2020CF45 3DA: before 2020CF45 3DG: before 2020CF45 3DH: before 2020CF45 3DJ: before 2020CF45 3DL: before 2020CF45 3DN: before 2020CF45 3DP: before 2020CF45 3DR: before 2020CF45 3DS: before 2020CF45 3DT: before 2020CF45 3DU: before 2020CF45 3DW: before 2020CF45 3DX: before 2020CF45 3EE: before 2020CF45 3EF: before 2020CF45 3EG: before 2020CF45 3EH: before 2020CF45 3EJ: before 2020CF45 3EL: before 2020CF45 3EN: before 2020CF45 3EP: before 2020CF45 3ER: before 2020CF45 3EW: before 2020CF45 3EX: before 2020CF45 3EY: before 2020CF45 3HB: before 2020CF45 3HD: before 2020CF45 3HF: before 2020CF45 3HG: before 2020CF45 3HH: before 2020CF45 3HJ: before 2020CF45 3HN: before 2020CF45 3HR: before 2020CF45 3HT: before 2020CF45 3HU: before 2020CF45 3HW: before 2020CF45 3HX: before 2020CF45 3HY: before 2020CF45 3LA: before 2020CF45 3LB: before 2020CF45 3LD: before 2020CF45 3LE: before 2020CF45 3LF: before 2020CF45 3LG: before 2020CF45 3LH: before 2020CF45 3LJ: before 2020CF45 3LL: before 2020CF45 3LN: before 2020CF45 3LP: before 2020CF45 3LR: before 2020CF45 3LS: before 2020CF45 3LT: before 2020CF45 3LU: before 2020CF45 3LW: before 2020CF45 3LX: before 2020CF45 3LY: before 2020CF45 3NA: before 2020CF45 3NB: before 2020CF45 3ND: before 2020CF45 3NE: before 2020CF45 3NF: before 2020CF45 3NG: before 2020CF45 3NJ: before 2020CF45 3NL: before 2020CF45 3NN: before 2020CF45 3NS: before 2020CF45 3NT: before 2020CF45 3NU: before 2020CF45 3NW: before 2020CF45 3NX: before 2020CF45 3NY: before 2020CF45 3NZ: before 2020CF45 3PA: before 2020CF45 3PB: before 2020CF45 3PD: before 2020CF45 3PE: before 2020CF45 3PF: before 2020CF45 3PG: before 2020CF45 3PJ: before 2020CF45 3PL: before 2020CF45 3PS: before 2020CF45 3PT: before 2020CF45 3PU: before 2020CF45 3PW: before 2020CF45 3PX: before 2020CF45 3PY: before 2020CF45 3RA: before 2020CF45 3RB: before 2020CF45 3RD: before 2020CF45 3RE: before 2020CF45 3RF: before 2020CF45 3RG: before 2020CF45 3RH: before 2020CF45 3RJ: before 2020CF45 3RL: before 2020CF45 3RN: before 2020CF45 3RP: before 2020CF45 3RR: before 2020CF45 3RS: before 2020CF45 3RT: before 2020CF45 3RU: before 2020CF45 3RW: before 2020CF45 3RX: before 2020CF45 3SD: before 2020CF45 3SE: before 2020CF45 3SF: before 2020CF45 3SG: before 2020CF45 3SH: before 2020CF45 3SJ: before 2020CF45 3SL: before 2020CF45 3SN: before 2020CF45 3SP: before 2020CF45 3SQ: before 2020CF45 3SR: before 2020CF45 3SS: before 2020CF45 3ST: before 2020CF45 3SU: before 2020CF45 3SW: before 2020CF45 3SX: before 2020CF45 3SY: before 2020CF45 3TA: before 2020CF45 3TB: before 2020CF45 3TD: before 2020CF45 3TE: before 2020CF45 3TF: before 2020CF45 3TG: before 2020CF45 3TH: before 2020CF45 3TJ: before 2020CF45 3TL: before 2020CF45 3TN: before 2020CF45 3TP: before 2020CF45 3TS: before 2020CF45 3TW: before 2020CF45 3TX: before 2020CF45 3TZ: before 2020CF45 3UA: before 2020CF45 3UB: before 2020CF45 3UD: before 2020CF45 3UF: before 2020CF45 3UG: before 2020CF45 3UH: before 2020CF45 3UJ: before 2020CF45 3UL: before 2020CF45 3UN: before 2020CF45 3UP: before 2020CF45 3UQ: before 2020CF45 3UR: before 2020CF45 3US: before 2020CF45 3UT: before 2020CF45 3UU: before 2020CF45 3UW: before 2020CF45 3UX: before 2020CF45 3UZ: before 2020CF45 3YA: before 2020CF45 3YB: before 2020CF45 3YD: before 2020CF45 3YE: before 2020CF45 3YF: before 2020CF45 3YG: before 2020CF45 3YH: before 2020CF45 3YJ: before 2020CF45 3YL: before 2020CF45 3YN: before 2020CF45 3YP: before 2020CF45 3YR: before 2020CF45 3YS: before 2020CF45 3YT: before 2020CF45 3YU: before 2020CF45 3YW: before 2020CF45 3YY: before 2020 Mountain Ash Map of every postcode in the CF45 3 sector, by new since 2020 Of the 204 postcodes in the CF45 3 sector that ONS places, 204 were in use before 2020. Places named: Mountain Ash. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Mountain Ash
  • New since 2020: 0
  • In use before 2020: 204

Of the 204 postcodes in the CF45 3 sector that ONS places, 204 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.

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

What do homes sell for in CF45 3?

Homes in CF45 3 sold for a typical £126,750 in the 12 months to August 2026, across 82 sales, up 15.2% on the 12 months before, HM Land Registry's figures show.

£126,750 typical price, the 12 months to August 2026
£110,000 12 months to August 2025
▲ up 15.2% on the 12 months before
  • Detached £355,000 6 sales
  • Semi-detached £150,000 13 sales
  • Terraced £122,000 62 sales
  • Flat or maisonette 1 sale, too few to price

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 CF45 3. 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 CF45 3

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.

CF45 3AACF45 3ABCF45 3ADCF45 3AECF45 3AFCF45 3AGCF45 3AHCF45 3AJCF45 3ALCF45 3ANCF45 3APCF45 3ARCF45 3ASCF45 3ATCF45 3AUCF45 3AWCF45 3AYCF45 3BACF45 3BBCF45 3BDCF45 3BECF45 3BGCF45 3BHCF45 3BLCF45 3BNCF45 3BPCF45 3BSCF45 3BTCF45 3BUCF45 3BWCF45 3BXCF45 3BYCF45 3DACF45 3DBCF45 3DGCF45 3DHCF45 3DJCF45 3DLCF45 3DNCF45 3DPCF45 3DRCF45 3DSCF45 3DTCF45 3DUCF45 3DWCF45 3DXCF45 3EECF45 3EFCF45 3EGCF45 3EHCF45 3EJCF45 3ELCF45 3ENCF45 3EPCF45 3ERCF45 3EWCF45 3EXCF45 3EYCF45 3HBCF45 3HDCF45 3HFCF45 3HGCF45 3HHCF45 3HJCF45 3HNCF45 3HRCF45 3HTCF45 3HUCF45 3HWCF45 3HXCF45 3HYCF45 3LACF45 3LBCF45 3LDCF45 3LECF45 3LFCF45 3LGCF45 3LHCF45 3LJCF45 3LLCF45 3LNCF45 3LPCF45 3LRCF45 3LSCF45 3LTCF45 3LUCF45 3LWCF45 3LXCF45 3LYCF45 3NACF45 3NBCF45 3NDCF45 3NECF45 3NFCF45 3NGCF45 3NJCF45 3NLCF45 3NNCF45 3NSCF45 3NTCF45 3NUCF45 3NWCF45 3NXCF45 3NYCF45 3NZCF45 3PACF45 3PBCF45 3PDCF45 3PECF45 3PFCF45 3PGCF45 3PJCF45 3PLCF45 3PSCF45 3PTCF45 3PUCF45 3PWCF45 3PXCF45 3PYCF45 3RACF45 3RBCF45 3RDCF45 3RECF45 3RFCF45 3RGCF45 3RHCF45 3RJCF45 3RLCF45 3RNCF45 3RPCF45 3RRCF45 3RSCF45 3RTCF45 3RUCF45 3RWCF45 3RXCF45 3SDCF45 3SECF45 3SFCF45 3SGCF45 3SHCF45 3SJCF45 3SLCF45 3SNCF45 3SPCF45 3SQCF45 3SRCF45 3SSCF45 3STCF45 3SUCF45 3SWCF45 3SXCF45 3SYCF45 3TACF45 3TBCF45 3TDCF45 3TECF45 3TFCF45 3TGCF45 3THCF45 3TJCF45 3TLCF45 3TNCF45 3TPCF45 3TSCF45 3TWCF45 3TXCF45 3TZCF45 3UACF45 3UBCF45 3UDCF45 3UFCF45 3UGCF45 3UHCF45 3UJCF45 3ULCF45 3UNCF45 3UPCF45 3UQCF45 3URCF45 3USCF45 3UTCF45 3UUCF45 3UWCF45 3UXCF45 3UYCF45 3UZCF45 3YACF45 3YBCF45 3YDCF45 3YECF45 3YFCF45 3YGCF45 3YHCF45 3YJCF45 3YLCF45 3YNCF45 3YPCF45 3YRCF45 3YSCF45 3YTCF45 3YUCF45 3YWCF45 3YY

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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