SO21 3 postcode sector in the SO21 district

SO21 3 is a sector of the SO21 district: every postcode that starts SO21 3. It has 243 postcodes in use, 2 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 SO21 3 sector, by gigabit broadband

Map of every postcode in the SO21 3 sector, by gigabit broadband Of the 243 postcodes in the SO21 3 sector that ONS places, 217 have no home or business that can get gigabit, 14 have some that can, 9 can all get it and 3 have no Ofcom figure. 6 groups of postcodes without gigabit are outlined: 37 postcodes without gigabit; 31 postcodes without gigabit; 20 postcodes without gigabit; 11 postcodes without gigabit; 10 postcodes without gigabit; 6 postcodes without gigabit. Places named: Kings Worthy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A272A31 SO21 3GA: no Ofcom figureSO21 3JB: no Ofcom figureSO21 3QR: no Ofcom figureSO21 3DW: gigabit for allSO21 3NS: gigabit for allSO21 3NT: gigabit for allSO21 3NU: gigabit for allSO21 3QH: gigabit for allSO21 3RU: gigabit for allSO21 3RX: gigabit for allSO21 3SA: gigabit for allSO21 3BP: some gigabitSO21 3BT: some gigabitSO21 3DJ: some gigabitSO21 3DN: some gigabitSO21 3EW: some gigabitSO21 3HD: some gigabitSO21 3HS: some gigabitSO21 3NX: some gigabitSO21 3QJ: some gigabitSO21 3AA: no gigabitSO21 3AB: no gigabitSO21 3AD: no gigabitSO21 3AE: no gigabitSO21 3AF: no gigabitSO21 3AG: no gigabitSO21 3AH: no gigabitSO21 3AJ: no gigabitSO21 3AL: no gigabitSO21 3AN: no gigabitSO21 3AP: no gigabitSO21 3AQ: no gigabitSO21 3AR: no gigabitSO21 3AS: no gigabitSO21 3AT: no gigabitSO21 3AW: no gigabitSO21 3AY: no gigabitSO21 3AZ: no gigabitSO21 3BA: no gigabitSO21 3BB: no gigabitSO21 3BD: no gigabitSO21 3BE: no gigabitSO21 3BF: no gigabitSO21 3BG: no gigabitSO21 3BH: no gigabitSO21 3BJ: no gigabitSO21 3BL: no gigabitSO21 3BN: no gigabitSO21 3BQ: no gigabitSO21 3BS: no gigabitSO21 3BU: no gigabitSO21 3BW: no gigabitSO21 3BX: no gigabitSO21 3BY: no gigabitSO21 3DA: no gigabitSO21 3DB: no gigabitSO21 3DD: no gigabitSO21 3DE: no gigabitSO21 3DF: no gigabitSO21 3DG: no gigabitSO21 3DL: no gigabitSO21 3DP: no gigabitSO21 3DQ: no gigabitSO21 3DR: no gigabitSO21 3DS: no gigabitSO21 3DT: no gigabitSO21 3DU: no gigabitSO21 3DX: no gigabitSO21 3DY: no gigabitSO21 3DZ: no gigabitSO21 3EA: no gigabitSO21 3EB: no gigabitSO21 3ED: no gigabitSO21 3EE: no gigabitSO21 3EG: no gigabitSO21 3EH: no gigabitSO21 3EJ: no gigabitSO21 3EL: no gigabitSO21 3EN: no gigabitSO21 3EP: no gigabitSO21 3EQ: no gigabitSO21 3ER: no gigabitSO21 3ES: no gigabitSO21 3ET: no gigabitSO21 3EU: no gigabitSO21 3EY: no gigabitSO21 3FE: no gigabitSO21 3FF: no gigabitSO21 3FG: no gigabitSO21 3FJ: no gigabitSO21 3FL: no gigabitSO21 3FN: no gigabitSO21 3FP: no gigabitSO21 3FQ: no gigabitSO21 3FR: no gigabitSO21 3FS: no gigabitSO21 3FT: no gigabitSO21 3FU: no gigabitSO21 3FW: no gigabitSO21 3FX: no gigabitSO21 3FY: no gigabitSO21 3GX: no gigabitSO21 3GZ: no gigabitSO21 3HA: no gigabitSO21 3HB: no gigabitSO21 3HE: no gigabitSO21 3HH: no gigabitSO21 3HL: no gigabitSO21 3HN: no gigabitSO21 3HP: no gigabitSO21 3HR: no gigabitSO21 3HT: no gigabitSO21 3HU: no gigabitSO21 3HW: no gigabitSO21 3JA: no gigabitSO21 3JD: no gigabitSO21 3JE: no gigabitSO21 3JG: no gigabitSO21 3JL: no gigabitSO21 3JN: no gigabitSO21 3JS: no gigabitSO21 3JU: no gigabitSO21 3JX: no gigabitSO21 3JY: no gigabitSO21 3LA: no gigabitSO21 3LB: no gigabitSO21 3LD: no gigabitSO21 3LE: no gigabitSO21 3LF: no gigabitSO21 3LG: no gigabitSO21 3LH: no gigabitSO21 3LJ: no gigabitSO21 3LL: no gigabitSO21 3LN: no gigabitSO21 3LP: no gigabitSO21 3LQ: no gigabitSO21 3LR: no gigabitSO21 3LS: no gigabitSO21 3LW: no gigabitSO21 3LX: no gigabitSO21 3NA: no gigabitSO21 3NB: no gigabitSO21 3ND: no gigabitSO21 3NE: no gigabitSO21 3NF: no gigabitSO21 3NJ: no gigabitSO21 3NP: no gigabitSO21 3NR: no gigabitSO21 3NY: no gigabitSO21 3NZ: no gigabitSO21 3PA: no gigabitSO21 3PB: no gigabitSO21 3PD: no gigabitSO21 3PE: no gigabitSO21 3PF: no gigabitSO21 3PG: no gigabitSO21 3PH: no gigabitSO21 3PL: no gigabitSO21 3PN: no gigabitSO21 3PR: no gigabitSO21 3PS: no gigabitSO21 3PT: no gigabitSO21 3PW: no gigabitSO21 3PX: no gigabitSO21 3PY: no gigabitSO21 3PZ: no gigabitSO21 3QA: no gigabitSO21 3QB: no gigabitSO21 3QD: no gigabitSO21 3QF: no gigabitSO21 3QG: no gigabitSO21 3QQ: no gigabitSO21 3QS: no gigabitSO21 3QX: no gigabitSO21 3RA: no gigabitSO21 3RB: no gigabitSO21 3RD: no gigabitSO21 3RE: no gigabitSO21 3RG: no gigabitSO21 3RH: no gigabitSO21 3RJ: no gigabitSO21 3RL: no gigabitSO21 3RP: no gigabitSO21 3RQ: no gigabitSO21 3RR: no gigabitSO21 3RS: no gigabitSO21 3RT: no gigabitSO21 3RW: no gigabitSO21 3SB: no gigabitSO21 3SD: no gigabitSO21 3SE: no gigabitSO21 3SG: no gigabitSO21 3SH: no gigabitSO21 3SJ: no gigabitSO21 3ST: no gigabitSO21 3SU: no gigabitSO21 3TA: no gigabitSO21 3XA: no gigabitSO21 3AX: no gigabitSO21 3FD: no gigabitSO21 3JP: no gigabitSO21 3RZ: no gigabit Kings Worthy 37 postcodes without gigabit, outlined: this goes to SO21 3XX, the one nearest the middle of them37 postcodes without gigabit31 postcodes without gigabit, outlined: this goes to SO21 3EA, the one nearest the middle of them31 postcodes without gigabit20 postcodes without gigabit, outlined: this goes to SO21 3RG, the one nearest the middle of them20 postcodes without gigabit11 postcodes without gigabit, outlined: this goes to SO21 3FD, the one nearest the middle of them11 postcodes without gigabit10 postcodes without gigabit, outlined: this goes to SO21 3EU, the one nearest the middle of them10 postcodes without gigabit6 postcodes without gigabit, outlined: this goes to SO21 3DU, the one nearest the middle of them6 postcodes without gigabit Map of every postcode in the SO21 3 sector, by gigabit broadband Of the 243 postcodes in the SO21 3 sector that ONS places, 217 have no home or business that can get gigabit, 14 have some that can, 9 can all get it and 3 have no Ofcom figure. 6 groups of postcodes without gigabit are outlined: 37 postcodes without gigabit; 31 postcodes without gigabit; 20 postcodes without gigabit; 11 postcodes without gigabit; 10 postcodes without gigabit; 6 postcodes without gigabit. Places named: Kings Worthy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Kings Worthy 20 postcodes without gigabit, outlined: this goes to SO21 3RG, the one nearest the middle of them20 postcodes without gigabit
  • No home or business can get gigabit: 217
  • Some can get gigabit: 14
  • Every home and business can get gigabit: 9
  • Ofcom gives no figure: 3
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 243 postcodes in the SO21 3 sector that ONS places, 217 have no home or business that can get gigabit, 14 have some that can, 9 can all get it and 3 have no Ofcom figure.

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. A dashed outline shows where 5 or more lie within 250 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

217 postcodes here have no gigabit. These are the 12 first in postcode order.

SO21 3AASO21 3ABSO21 3ADSO21 3AESO21 3AFSO21 3AGSO21 3AHSO21 3AJSO21 3ALSO21 3ANSO21 3APSO21 3AQ

Where the postcodes without gigabit lie together

  • 37 postcodes without gigabit, outlined on the map. SO21 3XX, is the one nearest the middle of them.
  • 31 postcodes without gigabit, outlined on the map. SO21 3EA, is the one nearest the middle of them.
  • 20 postcodes without gigabit, outlined on the map. SO21 3RG, is the one nearest the middle of them.
  • 11 postcodes without gigabit, outlined on the map. SO21 3FD, is the one nearest the middle of them.
  • 10 postcodes without gigabit, outlined on the map. SO21 3EU, is the one nearest the middle of them.
  • 6 postcodes without gigabit, outlined on the map. SO21 3DU, is the one nearest the middle of them.

What do homes sell for in SO21 3?

Homes in SO21 3 sold for a typical £560,000 in the 12 months to September 2026, across 61 sales, HM Land Registry's figures show. The 12 months before gave £580,000 from 63 sales: not a change larger than chance would explain, given which homes happened to sell.

£560,000 typical price, the 12 months to September 2026
£580,000 12 months to September 2025
  • Detached £630,000 35 sales
  • Semi-detached £430,000 13 sales
  • Terraced £466,000 11 sales
  • Flat or maisonette 2 sales, 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 SO21 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 October 2026.

Postcodes in SO21 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.

SO21 3AASO21 3ABSO21 3ADSO21 3AESO21 3AFSO21 3AGSO21 3AHSO21 3AJSO21 3ALSO21 3ANSO21 3APSO21 3AQSO21 3ARSO21 3ASSO21 3ATSO21 3AUSO21 3AWSO21 3AXSO21 3AYSO21 3AZSO21 3BASO21 3BBSO21 3BDSO21 3BESO21 3BFSO21 3BGSO21 3BHSO21 3BJSO21 3BLSO21 3BNSO21 3BPSO21 3BQSO21 3BSSO21 3BTSO21 3BUSO21 3BWSO21 3BXSO21 3BYSO21 3BZSO21 3DASO21 3DBSO21 3DDSO21 3DESO21 3DFSO21 3DGSO21 3DHSO21 3DJSO21 3DLSO21 3DNSO21 3DPSO21 3DQSO21 3DRSO21 3DSSO21 3DTSO21 3DUSO21 3DWSO21 3DXSO21 3DYSO21 3DZSO21 3EASO21 3EBSO21 3EDSO21 3EESO21 3EFSO21 3EGSO21 3EHSO21 3EJSO21 3ELSO21 3ENSO21 3EPSO21 3EQSO21 3ERSO21 3ESSO21 3ETSO21 3EUSO21 3EWSO21 3EXSO21 3EYSO21 3EZSO21 3FASO21 3FBSO21 3FDSO21 3FESO21 3FFSO21 3FGSO21 3FHSO21 3FJSO21 3FLSO21 3FNSO21 3FPSO21 3FQSO21 3FRSO21 3FSSO21 3FTSO21 3FUSO21 3FWSO21 3FXSO21 3FYSO21 3GASO21 3GXSO21 3GYSO21 3GZSO21 3HASO21 3HBSO21 3HDSO21 3HESO21 3HFSO21 3HGSO21 3HHSO21 3HJSO21 3HLSO21 3HNSO21 3HPSO21 3HQSO21 3HRSO21 3HSSO21 3HTSO21 3HUSO21 3HWSO21 3HXSO21 3HYSO21 3HZSO21 3JASO21 3JBSO21 3JDSO21 3JESO21 3JFSO21 3JGSO21 3JHSO21 3JJSO21 3JLSO21 3JNSO21 3JPSO21 3JRSO21 3JSSO21 3JTSO21 3JUSO21 3JWSO21 3JXSO21 3JYSO21 3LASO21 3LBSO21 3LDSO21 3LESO21 3LFSO21 3LGSO21 3LHSO21 3LJSO21 3LLSO21 3LNSO21 3LPSO21 3LQSO21 3LRSO21 3LSSO21 3LTSO21 3LUSO21 3LWSO21 3LXSO21 3NASO21 3NBSO21 3NDSO21 3NESO21 3NFSO21 3NHSO21 3NJSO21 3NLSO21 3NPSO21 3NRSO21 3NSSO21 3NTSO21 3NUSO21 3NXSO21 3NYSO21 3NZSO21 3PASO21 3PBSO21 3PDSO21 3PESO21 3PFSO21 3PGSO21 3PHSO21 3PJSO21 3PLSO21 3PNSO21 3PPSO21 3PQSO21 3PRSO21 3PSSO21 3PTSO21 3PWSO21 3PXSO21 3PYSO21 3PZSO21 3QASO21 3QBSO21 3QDSO21 3QFSO21 3QGSO21 3QHSO21 3QJSO21 3QQSO21 3QRSO21 3QSSO21 3QXSO21 3QYSO21 3QZSO21 3RASO21 3RBSO21 3RDSO21 3RESO21 3RFSO21 3RGSO21 3RHSO21 3RJSO21 3RLSO21 3RNSO21 3RPSO21 3RQSO21 3RRSO21 3RSSO21 3RTSO21 3RUSO21 3RWSO21 3RXSO21 3RYSO21 3RZSO21 3SASO21 3SBSO21 3SDSO21 3SESO21 3SFSO21 3SGSO21 3SHSO21 3SJSO21 3SLSO21 3SNSO21 3SPSO21 3SRSO21 3STSO21 3SUSO21 3TASO21 3XASO21 3XX

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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