GU1 3 postcode sector in the GU1 district

GU1 3 is a sector of the GU1 district: every postcode that starts GU1 3. It has 192 postcodes in use, 12 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 GU1 3 sector, and which are new since 2020

Map of every postcode in the GU1 3 sector, by new since 2020 Of the 192 postcodes in the GU1 3 sector that ONS places, 2 are new since 2020 and 190 were in use before 2020. Places named: Castle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A281A3100 GU1 3AA: before 2020GU1 3AD: before 2020GU1 3AF: before 2020GU1 3AH: before 2020GU1 3AJ: before 2020GU1 3AP: before 2020GU1 3AU: before 2020GU1 3AW: before 2020GU1 3BB: before 2020GU1 3BJ: before 2020GU1 3BT: before 2020GU1 3BY: before 2020GU1 3DA: before 2020GU1 3DD: before 2020GU1 3DE: before 2020GU1 3DG: before 2020GU1 3DN: before 2020GU1 3DP: before 2020GU1 3DS: before 2020GU1 3DT: before 2020GU1 3DY: before 2020GU1 3EB: before 2020GU1 3EG: before 2020GU1 3EL: before 2020GU1 3ES: before 2020GU1 3EX: before 2020GU1 3EZ: before 2020GU1 3HE: before 2020GU1 3HJ: before 2020GU1 3HQ: before 2020GU1 3HW: before 2020GU1 3HX: before 2020GU1 3HZ: before 2020GU1 3JB: before 2020GU1 3JD: before 2020GU1 3JF: before 2020GU1 3JG: before 2020GU1 3JH: before 2020GU1 3JL: before 2020GU1 3JP: before 2020GU1 3JQ: before 2020GU1 3JR: before 2020GU1 3JS: before 2020GU1 3JT: before 2020GU1 3JU: before 2020GU1 3JX: before 2020GU1 3JY: before 2020GU1 3JZ: before 2020GU1 3LA: before 2020GU1 3LB: before 2020GU1 3LD: before 2020GU1 3LE: before 2020GU1 3LF: before 2020GU1 3LH: before 2020GU1 3LJ: before 2020GU1 3LL: before 2020GU1 3LN: before 2020GU1 3LP: before 2020GU1 3LQ: before 2020GU1 3LR: before 2020GU1 3LS: before 2020GU1 3LT: before 2020GU1 3LU: before 2020GU1 3LW: before 2020GU1 3LX: before 2020GU1 3LY: before 2020GU1 3LZ: before 2020GU1 3NA: before 2020GU1 3NB: before 2020GU1 3ND: before 2020GU1 3NE: before 2020GU1 3NF: before 2020GU1 3NG: before 2020GU1 3NH: before 2020GU1 3NJ: before 2020GU1 3NL: before 2020GU1 3NN: before 2020GU1 3NP: before 2020GU1 3NQ: before 2020GU1 3NR: before 2020GU1 3NS: before 2020GU1 3NU: before 2020GU1 3NW: before 2020GU1 3PA: before 2020GU1 3PB: before 2020GU1 3PE: before 2020GU1 3PF: before 2020GU1 3PG: before 2020GU1 3PH: before 2020GU1 3PJ: before 2020GU1 3PL: before 2020GU1 3PN: before 2020GU1 3PP: before 2020GU1 3PQ: before 2020GU1 3PS: before 2020GU1 3PT: before 2020GU1 3PU: before 2020GU1 3PW: before 2020GU1 3PX: before 2020GU1 3PY: before 2020GU1 3PZ: before 2020GU1 3QA: before 2020GU1 3QB: before 2020GU1 3QD: before 2020GU1 3QE: before 2020GU1 3QF: before 2020GU1 3QG: before 2020GU1 3QH: before 2020GU1 3QJ: before 2020GU1 3QL: before 2020GU1 3QP: before 2020GU1 3QQ: before 2020GU1 3QS: before 2020GU1 3QT: before 2020GU1 3QW: before 2020GU1 3QY: before 2020GU1 3RJ: before 2020GU1 3RP: before 2020GU1 3RR: before 2020GU1 3RT: before 2020GU1 3RU: before 2020GU1 3RW: before 2020GU1 3RX: before 2020GU1 3RY: before 2020GU1 3RZ: before 2020GU1 3SA: before 2020GU1 3SB: before 2020GU1 3SD: before 2020GU1 3SE: before 2020GU1 3SF: before 2020GU1 3SG: before 2020GU1 3SH: before 2020GU1 3SJ: before 2020GU1 3SL: before 2020GU1 3SN: before 2020GU1 3SP: before 2020GU1 3SQ: before 2020GU1 3SR: before 2020GU1 3ST: before 2020GU1 3SW: before 2020GU1 3SX: before 2020GU1 3SY: before 2020GU1 3SZ: before 2020GU1 3TA: before 2020GU1 3TB: before 2020GU1 3TD: before 2020GU1 3TE: before 2020GU1 3TF: before 2020GU1 3TG: before 2020GU1 3TH: before 2020GU1 3TJ: before 2020GU1 3TL: before 2020GU1 3TN: before 2020GU1 3TP: before 2020GU1 3TQ: before 2020GU1 3TR: before 2020GU1 3TS: before 2020GU1 3TU: before 2020GU1 3TW: before 2020GU1 3TX: before 2020GU1 3TY: before 2020GU1 3TZ: before 2020GU1 3UA: before 2020GU1 3UH: before 2020GU1 3UL: before 2020GU1 3UP: before 2020GU1 3UQ: before 2020GU1 3UR: before 2020GU1 3UT: before 2020GU1 3UW: before 2020GU1 3UX: before 2020GU1 3UY: before 2020GU1 3XD: before 2020GU1 3XJ: before 2020GU1 3XL: before 2020GU1 3XN: before 2020GU1 3XP: before 2020GU1 3XQ: before 2020GU1 3XR: before 2020GU1 3XS: before 2020GU1 3XT: before 2020GU1 3XU: before 2020GU1 3XW: before 2020GU1 3XX: before 2020GU1 3XY: before 2020GU1 3XZ: before 2020GU1 3YA: before 2020GU1 3BS: new since 2020GU1 3BL: new since 2020 Castle Map of every postcode in the GU1 3 sector, by new since 2020 Of the 192 postcodes in the GU1 3 sector that ONS places, 2 are new since 2020 and 190 were in use before 2020. Places named: Castle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Castle
  • New since 2020: 2
  • In use before 2020: 190

Of the 192 postcodes in the GU1 3 sector that ONS places, 2 are new since 2020 and 190 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

GU1 3BSDecember 2021GU1 3BLFebruary 2020

What do homes sell for in GU1 3?

Homes in GU1 3 sold for a typical £662,000 in the 12 months to August 2026, across 71 sales, up 31.1% on the 12 months before, HM Land Registry's figures show.

£662,000 typical price, the 12 months to August 2026
£505,000 12 months to August 2025
▲ up 31.1% on the 12 months before
  • Detached £1,500,000 19 sales
  • Semi-detached £700,000 19 sales
  • Terraced £625,000 7 sales
  • Flat or maisonette £298,500 26 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 GU1 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 GU1 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.

GU1 3AAGU1 3ADGU1 3AFGU1 3AGGU1 3AHGU1 3AJGU1 3APGU1 3AUGU1 3AWGU1 3BBGU1 3BJGU1 3BLGU1 3BSGU1 3BTGU1 3BYGU1 3DAGU1 3DDGU1 3DEGU1 3DGGU1 3DNGU1 3DPGU1 3DSGU1 3DTGU1 3DYGU1 3EBGU1 3EGGU1 3ELGU1 3ESGU1 3EXGU1 3EZGU1 3HEGU1 3HJGU1 3HQGU1 3HWGU1 3HXGU1 3HZGU1 3JBGU1 3JDGU1 3JFGU1 3JGGU1 3JHGU1 3JLGU1 3JPGU1 3JQGU1 3JRGU1 3JSGU1 3JTGU1 3JUGU1 3JXGU1 3JYGU1 3JZGU1 3LAGU1 3LBGU1 3LDGU1 3LEGU1 3LFGU1 3LHGU1 3LJGU1 3LLGU1 3LNGU1 3LPGU1 3LQGU1 3LRGU1 3LSGU1 3LTGU1 3LUGU1 3LWGU1 3LXGU1 3LYGU1 3LZGU1 3NAGU1 3NBGU1 3NDGU1 3NEGU1 3NFGU1 3NGGU1 3NHGU1 3NJGU1 3NLGU1 3NNGU1 3NPGU1 3NQGU1 3NRGU1 3NSGU1 3NUGU1 3NWGU1 3NXGU1 3PAGU1 3PBGU1 3PEGU1 3PFGU1 3PGGU1 3PHGU1 3PJGU1 3PLGU1 3PNGU1 3PPGU1 3PQGU1 3PSGU1 3PTGU1 3PUGU1 3PWGU1 3PXGU1 3PYGU1 3PZGU1 3QAGU1 3QBGU1 3QDGU1 3QEGU1 3QFGU1 3QGGU1 3QHGU1 3QJGU1 3QLGU1 3QPGU1 3QQGU1 3QSGU1 3QTGU1 3QWGU1 3QYGU1 3RJGU1 3RPGU1 3RRGU1 3RTGU1 3RUGU1 3RWGU1 3RXGU1 3RYGU1 3RZGU1 3SAGU1 3SBGU1 3SDGU1 3SEGU1 3SFGU1 3SGGU1 3SHGU1 3SJGU1 3SLGU1 3SNGU1 3SPGU1 3SQGU1 3SRGU1 3STGU1 3SWGU1 3SXGU1 3SYGU1 3SZGU1 3TAGU1 3TBGU1 3TDGU1 3TEGU1 3TFGU1 3TGGU1 3THGU1 3TJGU1 3TLGU1 3TNGU1 3TPGU1 3TQGU1 3TRGU1 3TSGU1 3TUGU1 3TWGU1 3TXGU1 3TYGU1 3TZGU1 3UAGU1 3UHGU1 3ULGU1 3UPGU1 3UQGU1 3URGU1 3UTGU1 3UWGU1 3UXGU1 3UYGU1 3XDGU1 3XJGU1 3XLGU1 3XNGU1 3XPGU1 3XQGU1 3XRGU1 3XSGU1 3XTGU1 3XUGU1 3XWGU1 3XXGU1 3XYGU1 3XZGU1 3YAGU1 3YU

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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