CF10 3 postcode sector in the CF10 district

CF10 3 is a sector of the CF10 district: every postcode that starts CF10 3. It has 107 postcodes in use, 39 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 CF10 3 sector, and which are new since 2020

Map of every postcode in the CF10 3 sector, by new since 2020 Of the 107 postcodes in the CF10 3 sector that ONS places, 4 are new since 2020 and 103 were in use before 2020. Places named: Cathays, Grangetown. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4234 CF10 3AE: before 2020CF10 3AF: before 2020CF10 3AG: before 2020CF10 3AL: before 2020CF10 3AN: before 2020CF10 3AP: before 2020CF10 3AR: before 2020CF10 3AS: before 2020CF10 3AT: before 2020CF10 3AX: before 2020CF10 3BA: before 2020CF10 3BB: before 2020CF10 3BD: before 2020CF10 3BE: before 2020CF10 3BG: before 2020CF10 3BH: before 2020CF10 3BJ: before 2020CF10 3BN: before 2020CF10 3BS: before 2020CF10 3BW: before 2020CF10 3BX: before 2020CF10 3BY: before 2020CF10 3BZ: before 2020CF10 3DA: before 2020CF10 3DB: before 2020CF10 3DD: before 2020CF10 3DF: before 2020CF10 3DG: before 2020CF10 3DJ: before 2020CF10 3DN: before 2020CF10 3DP: before 2020CF10 3DQ: before 2020CF10 3DU: before 2020CF10 3DW: before 2020CF10 3DX: before 2020CF10 3DY: before 2020CF10 3DZ: before 2020CF10 3EA: before 2020CF10 3EB: before 2020CF10 3ED: before 2020CF10 3EE: before 2020CF10 3EF: before 2020CF10 3EG: before 2020CF10 3EH: before 2020CF10 3EJ: before 2020CF10 3EL: before 2020CF10 3EN: before 2020CF10 3EP: before 2020CF10 3EQ: before 2020CF10 3ER: before 2020CF10 3ET: before 2020CF10 3EU: before 2020CF10 3EW: before 2020CF10 3EX: before 2020CF10 3EY: before 2020CF10 3EZ: before 2020CF10 3FA: before 2020CF10 3FD: before 2020CF10 3FG: before 2020CF10 3FN: before 2020CF10 3GA: before 2020CF10 3HA: before 2020CF10 3HH: before 2020CF10 3LN: before 2020CF10 3NB: before 2020CF10 3ND: before 2020CF10 3NL: before 2020CF10 3NN: before 2020CF10 3NQ: before 2020CF10 3NS: before 2020CF10 3QN: before 2020CF10 3RB: before 2020CF10 3RL: before 2020CF10 3SG: before 2020CF10 3TS: before 2020CF10 3UB: before 2020CF10 3UD: before 2020CF10 3UN: before 2020CF10 3UP: before 2020CF10 3WA: before 2020CF10 3FH: new since 2020CF10 3FJ: new since 2020CF10 3LB: new since 2020CF10 3RJ: new since 2020 CathaysGrangetown Map of every postcode in the CF10 3 sector, by new since 2020 Of the 107 postcodes in the CF10 3 sector that ONS places, 4 are new since 2020 and 103 were in use before 2020. Places named: Cathays, Grangetown. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. CathaysGrangetown
  • New since 2020: 4
  • In use before 2020: 103

Of the 107 postcodes in the CF10 3 sector that ONS places, 4 are new since 2020 and 103 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

CF10 3FJApril 2024CF10 3FHOctober 2022CF10 3RJMay 2021CF10 3LBOctober 2020

What do homes sell for in CF10 3?

Homes in CF10 3 sold for a typical £170,000 in the 12 months to August 2026, across 7 sales, down 50.4% on the 12 months before, HM Land Registry's figures show.

£170,000 typical price, the 12 months to August 2026
£342,500 12 months to August 2025
▼ down 50.4% on the 12 months before
  • Terraced 1 sale, too few to price
  • Flat or maisonette £165,500 6 sales

Standard sales of homes at market value at the postcodes that start CF10 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 CF10 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.

CF10 3AECF10 3AFCF10 3AGCF10 3ALCF10 3ANCF10 3APCF10 3AQCF10 3ARCF10 3ASCF10 3ATCF10 3AWCF10 3AXCF10 3AYCF10 3BACF10 3BBCF10 3BDCF10 3BECF10 3BFCF10 3BGCF10 3BHCF10 3BJCF10 3BNCF10 3BQCF10 3BSCF10 3BWCF10 3BXCF10 3BYCF10 3BZCF10 3DACF10 3DBCF10 3DDCF10 3DFCF10 3DGCF10 3DJCF10 3DNCF10 3DPCF10 3DQCF10 3DUCF10 3DWCF10 3DXCF10 3DYCF10 3DZCF10 3EACF10 3EBCF10 3EDCF10 3EECF10 3EFCF10 3EGCF10 3EHCF10 3EJCF10 3ELCF10 3ENCF10 3EPCF10 3EQCF10 3ERCF10 3ETCF10 3EUCF10 3EWCF10 3EXCF10 3EYCF10 3EZCF10 3FACF10 3FDCF10 3FGCF10 3FHCF10 3FJCF10 3FNCF10 3GACF10 3HACF10 3HHCF10 3LBCF10 3LNCF10 3NBCF10 3NDCF10 3NLCF10 3NNCF10 3NPCF10 3NQCF10 3NSCF10 3PGCF10 3PLCF10 3PWCF10 3QNCF10 3RBCF10 3RJCF10 3RLCF10 3RSCF10 3SGCF10 3SXCF10 3TSCF10 3UACF10 3UBCF10 3UDCF10 3UNCF10 3UPCF10 3UWCF10 3WACF10 3WDCF10 3WTCF10 3WXCF10 3XACF10 3XLCF10 3XRCF10 3XSCF10 3XZCF10 3YZCF10 3ZP

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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