KT12 3 postcode sector in the KT12 district

KT12 3 is a sector of the KT12 district: every postcode that starts KT12 3. It has 191 postcodes in use, 6 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 KT12 3 sector, and which are new since 2020

Map of every postcode in the KT12 3 sector, by new since 2020 Of the 191 postcodes in the KT12 3 sector that ONS places, 191 were in use before 2020. Places named: Walton-on-Thames. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. KT12 3AA: before 2020KT12 3AB: before 2020KT12 3AD: before 2020KT12 3AE: before 2020KT12 3AF: before 2020KT12 3AG: before 2020KT12 3AH: before 2020KT12 3AJ: before 2020KT12 3AL: before 2020KT12 3AN: before 2020KT12 3AP: before 2020KT12 3AQ: before 2020KT12 3AR: before 2020KT12 3AS: before 2020KT12 3AT: before 2020KT12 3AU: before 2020KT12 3AW: before 2020KT12 3AX: before 2020KT12 3AY: before 2020KT12 3AZ: before 2020KT12 3BA: before 2020KT12 3BB: before 2020KT12 3BD: before 2020KT12 3BE: before 2020KT12 3BF: before 2020KT12 3BG: before 2020KT12 3BH: before 2020KT12 3BJ: before 2020KT12 3BL: before 2020KT12 3BP: before 2020KT12 3BQ: before 2020KT12 3BS: before 2020KT12 3BT: before 2020KT12 3BW: before 2020KT12 3BX: before 2020KT12 3BY: before 2020KT12 3BZ: before 2020KT12 3DA: before 2020KT12 3DB: before 2020KT12 3DD: before 2020KT12 3DF: before 2020KT12 3DG: before 2020KT12 3DH: before 2020KT12 3DJ: before 2020KT12 3DL: before 2020KT12 3DN: before 2020KT12 3DP: before 2020KT12 3DQ: before 2020KT12 3DR: before 2020KT12 3DS: before 2020KT12 3DT: before 2020KT12 3DU: before 2020KT12 3DW: before 2020KT12 3DX: before 2020KT12 3DZ: before 2020KT12 3EA: before 2020KT12 3EB: before 2020KT12 3EE: before 2020KT12 3EF: before 2020KT12 3EG: before 2020KT12 3EH: before 2020KT12 3EJ: before 2020KT12 3EL: before 2020KT12 3EN: before 2020KT12 3EP: before 2020KT12 3EQ: before 2020KT12 3ER: before 2020KT12 3ES: before 2020KT12 3ET: before 2020KT12 3EU: before 2020KT12 3EW: before 2020KT12 3EX: before 2020KT12 3EY: before 2020KT12 3EZ: before 2020KT12 3FA: before 2020KT12 3FD: before 2020KT12 3FE: before 2020KT12 3HA: before 2020KT12 3HB: before 2020KT12 3HD: before 2020KT12 3HE: before 2020KT12 3HF: before 2020KT12 3HG: before 2020KT12 3HH: before 2020KT12 3HN: before 2020KT12 3HP: before 2020KT12 3HS: before 2020KT12 3HT: before 2020KT12 3HU: before 2020KT12 3HX: before 2020KT12 3HY: before 2020KT12 3HZ: before 2020KT12 3JA: before 2020KT12 3JB: before 2020KT12 3JD: before 2020KT12 3JE: before 2020KT12 3JG: before 2020KT12 3JH: before 2020KT12 3JJ: before 2020KT12 3JL: before 2020KT12 3JN: before 2020KT12 3JP: before 2020KT12 3JQ: before 2020KT12 3JT: before 2020KT12 3JU: before 2020KT12 3JW: before 2020KT12 3JX: before 2020KT12 3JY: before 2020KT12 3JZ: before 2020KT12 3LA: before 2020KT12 3LB: before 2020KT12 3LD: before 2020KT12 3LE: before 2020KT12 3LF: before 2020KT12 3LG: before 2020KT12 3LJ: before 2020KT12 3LN: before 2020KT12 3LP: before 2020KT12 3LQ: before 2020KT12 3LR: before 2020KT12 3LS: before 2020KT12 3LT: before 2020KT12 3LU: before 2020KT12 3LW: before 2020KT12 3LY: before 2020KT12 3LZ: before 2020KT12 3NB: before 2020KT12 3ND: before 2020KT12 3NE: before 2020KT12 3NF: before 2020KT12 3NG: before 2020KT12 3NH: before 2020KT12 3NJ: before 2020KT12 3NN: before 2020KT12 3NQ: before 2020KT12 3NS: before 2020KT12 3NT: before 2020KT12 3NU: before 2020KT12 3NX: before 2020KT12 3NY: before 2020KT12 3PA: before 2020KT12 3PB: before 2020KT12 3PD: before 2020KT12 3PE: before 2020KT12 3PF: before 2020KT12 3PG: before 2020KT12 3PH: before 2020KT12 3PL: before 2020KT12 3PN: before 2020KT12 3PP: before 2020KT12 3PU: before 2020KT12 3PW: before 2020KT12 3QD: before 2020KT12 3QG: before 2020KT12 3QH: before 2020KT12 3QJ: before 2020KT12 3QL: before 2020KT12 3QN: before 2020KT12 3QP: before 2020KT12 3QR: before 2020KT12 3QS: before 2020KT12 3QT: before 2020KT12 3QU: before 2020KT12 3QW: before 2020KT12 3QX: before 2020KT12 3QY: before 2020KT12 3QZ: before 2020KT12 3RB: before 2020KT12 3RD: before 2020KT12 3RE: before 2020KT12 3RG: before 2020KT12 3RH: before 2020KT12 3RJ: before 2020KT12 3RL: before 2020KT12 3RN: before 2020KT12 3RP: before 2020KT12 3RQ: before 2020KT12 3RX: before 2020KT12 3RY: before 2020KT12 3SA: before 2020KT12 3SB: before 2020KT12 3SD: before 2020KT12 3SE: before 2020KT12 3SH: before 2020KT12 3SJ: before 2020KT12 3SL: before 2020KT12 3SQ: before 2020KT12 3TD: before 2020KT12 3XE: before 2020 Walton-on-Thames Map of every postcode in the KT12 3 sector, by new since 2020 Of the 191 postcodes in the KT12 3 sector that ONS places, 191 were in use before 2020. Places named: Walton-on-Thames. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Walton-on-Thames
  • New since 2020: 0
  • In use before 2020: 191

Of the 191 postcodes in the KT12 3 sector that ONS places, 191 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 KT12 3?

Homes in KT12 3 sold for a typical £512,500 in the 12 months to August 2026, across 82 sales, down 12.9% on the 12 months before, HM Land Registry's figures show.

£512,500 typical price, the 12 months to August 2026
£588,500 12 months to August 2025
▼ down 12.9% on the 12 months before
  • Detached £1,050,000 15 sales
  • Semi-detached £750,000 21 sales
  • Terraced £467,000 25 sales
  • Flat or maisonette £320,000 21 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 KT12 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 KT12 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.

KT12 3AAKT12 3ABKT12 3ADKT12 3AEKT12 3AFKT12 3AGKT12 3AHKT12 3AJKT12 3ALKT12 3ANKT12 3APKT12 3AQKT12 3ARKT12 3ASKT12 3ATKT12 3AUKT12 3AWKT12 3AXKT12 3AYKT12 3AZKT12 3BAKT12 3BBKT12 3BDKT12 3BEKT12 3BFKT12 3BGKT12 3BHKT12 3BJKT12 3BLKT12 3BPKT12 3BQKT12 3BSKT12 3BTKT12 3BWKT12 3BXKT12 3BYKT12 3BZKT12 3DAKT12 3DBKT12 3DDKT12 3DFKT12 3DGKT12 3DHKT12 3DJKT12 3DLKT12 3DNKT12 3DPKT12 3DQKT12 3DRKT12 3DSKT12 3DTKT12 3DUKT12 3DWKT12 3DXKT12 3DZKT12 3EAKT12 3EBKT12 3EEKT12 3EFKT12 3EGKT12 3EHKT12 3EJKT12 3ELKT12 3ENKT12 3EPKT12 3EQKT12 3ERKT12 3ESKT12 3ETKT12 3EUKT12 3EWKT12 3EXKT12 3EYKT12 3EZKT12 3FAKT12 3FDKT12 3FEKT12 3HAKT12 3HBKT12 3HDKT12 3HEKT12 3HFKT12 3HGKT12 3HHKT12 3HNKT12 3HPKT12 3HSKT12 3HTKT12 3HUKT12 3HXKT12 3HYKT12 3HZKT12 3JAKT12 3JBKT12 3JDKT12 3JEKT12 3JGKT12 3JHKT12 3JJKT12 3JLKT12 3JNKT12 3JPKT12 3JQKT12 3JTKT12 3JUKT12 3JWKT12 3JXKT12 3JYKT12 3JZKT12 3LAKT12 3LBKT12 3LDKT12 3LEKT12 3LFKT12 3LGKT12 3LJKT12 3LNKT12 3LPKT12 3LQKT12 3LRKT12 3LSKT12 3LTKT12 3LUKT12 3LWKT12 3LYKT12 3LZKT12 3NBKT12 3NDKT12 3NEKT12 3NFKT12 3NGKT12 3NHKT12 3NJKT12 3NLKT12 3NNKT12 3NQKT12 3NSKT12 3NTKT12 3NUKT12 3NXKT12 3NYKT12 3PAKT12 3PBKT12 3PDKT12 3PEKT12 3PFKT12 3PGKT12 3PHKT12 3PLKT12 3PNKT12 3PPKT12 3PUKT12 3PWKT12 3QDKT12 3QGKT12 3QHKT12 3QJKT12 3QLKT12 3QNKT12 3QPKT12 3QRKT12 3QSKT12 3QTKT12 3QUKT12 3QWKT12 3QXKT12 3QYKT12 3QZKT12 3RBKT12 3RDKT12 3REKT12 3RGKT12 3RHKT12 3RJKT12 3RLKT12 3RNKT12 3RPKT12 3RQKT12 3RXKT12 3RYKT12 3SAKT12 3SBKT12 3SDKT12 3SEKT12 3SHKT12 3SJKT12 3SLKT12 3SQKT12 3TDKT12 3XEKT12 3XH

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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