SO16 3 postcode sector in the SO16 district

SO16 3 is a sector of the SO16 district: every postcode that starts SO16 3. It has 219 postcodes in use, 3 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 SO16 3 sector, and which are new since 2020

Map of every postcode in the SO16 3 sector, by new since 2020 Of the 219 postcodes in the SO16 3 sector that ONS places, 1 are new since 2020 and 218 were in use before 2020. Places named: Bassett, Swaythling. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M27A33A335M3 SO16 3AT: before 2020SO16 3AU: before 2020SO16 3AW: before 2020SO16 3AX: before 2020SO16 3AY: before 2020SO16 3AZ: before 2020SO16 3BA: before 2020SO16 3BB: before 2020SO16 3BD: before 2020SO16 3BE: before 2020SO16 3BG: before 2020SO16 3BH: before 2020SO16 3BJ: before 2020SO16 3BL: before 2020SO16 3BN: before 2020SO16 3BP: before 2020SO16 3BQ: before 2020SO16 3BR: before 2020SO16 3BS: before 2020SO16 3BT: before 2020SO16 3BU: before 2020SO16 3BW: before 2020SO16 3BX: before 2020SO16 3BZ: before 2020SO16 3DA: before 2020SO16 3DB: before 2020SO16 3DD: before 2020SO16 3DE: before 2020SO16 3DF: before 2020SO16 3DG: before 2020SO16 3DH: before 2020SO16 3DJ: before 2020SO16 3DL: before 2020SO16 3DN: before 2020SO16 3DP: before 2020SO16 3DQ: before 2020SO16 3DR: before 2020SO16 3DS: before 2020SO16 3DT: before 2020SO16 3DU: before 2020SO16 3DW: before 2020SO16 3DX: before 2020SO16 3DY: before 2020SO16 3DZ: before 2020SO16 3EB: before 2020SO16 3EE: before 2020SO16 3EF: before 2020SO16 3EG: before 2020SO16 3EH: before 2020SO16 3EJ: before 2020SO16 3EN: before 2020SO16 3EP: before 2020SO16 3EQ: before 2020SO16 3ET: before 2020SO16 3EU: before 2020SO16 3EW: before 2020SO16 3FG: before 2020SO16 3FH: before 2020SO16 3FU: before 2020SO16 3FX: before 2020SO16 3FY: before 2020SO16 3FZ: before 2020SO16 3GA: before 2020SO16 3GB: before 2020SO16 3GD: before 2020SO16 3GE: before 2020SO16 3GF: before 2020SO16 3GG: before 2020SO16 3GH: before 2020SO16 3GJ: before 2020SO16 3GL: before 2020SO16 3GN: before 2020SO16 3GP: before 2020SO16 3GQ: before 2020SO16 3GR: before 2020SO16 3GS: before 2020SO16 3GT: before 2020SO16 3GU: before 2020SO16 3GW: before 2020SO16 3GX: before 2020SO16 3GY: before 2020SO16 3GZ: before 2020SO16 3HA: before 2020SO16 3HD: before 2020SO16 3HF: before 2020SO16 3HH: before 2020SO16 3HJ: before 2020SO16 3HL: before 2020SO16 3HN: before 2020SO16 3HP: before 2020SO16 3HQ: before 2020SO16 3HR: before 2020SO16 3HS: before 2020SO16 3HT: before 2020SO16 3HU: before 2020SO16 3HW: before 2020SO16 3HX: before 2020SO16 3HY: before 2020SO16 3HZ: before 2020SO16 3JA: before 2020SO16 3JB: before 2020SO16 3JD: before 2020SO16 3JE: before 2020SO16 3JF: before 2020SO16 3JG: before 2020SO16 3JH: before 2020SO16 3JJ: before 2020SO16 3JL: before 2020SO16 3JN: before 2020SO16 3JP: before 2020SO16 3JQ: before 2020SO16 3JR: before 2020SO16 3JS: before 2020SO16 3JT: before 2020SO16 3JU: before 2020SO16 3JW: before 2020SO16 3JX: before 2020SO16 3JY: before 2020SO16 3JZ: before 2020SO16 3LA: before 2020SO16 3LB: before 2020SO16 3LD: before 2020SO16 3LE: before 2020SO16 3LF: before 2020SO16 3LG: before 2020SO16 3LH: before 2020SO16 3LJ: before 2020SO16 3LL: before 2020SO16 3LN: before 2020SO16 3LP: before 2020SO16 3LQ: before 2020SO16 3LR: before 2020SO16 3LS: before 2020SO16 3LT: before 2020SO16 3LU: before 2020SO16 3LW: before 2020SO16 3LX: before 2020SO16 3LY: before 2020SO16 3LZ: before 2020SO16 3NA: before 2020SO16 3NB: before 2020SO16 3ND: before 2020SO16 3NE: before 2020SO16 3NF: before 2020SO16 3NG: before 2020SO16 3NJ: before 2020SO16 3NL: before 2020SO16 3NN: before 2020SO16 3NP: before 2020SO16 3NQ: before 2020SO16 3NR: before 2020SO16 3NS: before 2020SO16 3NT: before 2020SO16 3NU: before 2020SO16 3NW: before 2020SO16 3NX: before 2020SO16 3NY: before 2020SO16 3NZ: before 2020SO16 3PA: before 2020SO16 3PB: before 2020SO16 3PD: before 2020SO16 3PE: before 2020SO16 3PF: before 2020SO16 3PG: before 2020SO16 3PH: before 2020SO16 3PJ: before 2020SO16 3PL: before 2020SO16 3PN: before 2020SO16 3PP: before 2020SO16 3PQ: before 2020SO16 3PR: before 2020SO16 3PS: before 2020SO16 3PT: before 2020SO16 3PU: before 2020SO16 3PW: before 2020SO16 3PY: before 2020SO16 3PZ: before 2020SO16 3QA: before 2020SO16 3QB: before 2020SO16 3QD: before 2020SO16 3QE: before 2020SO16 3QF: before 2020SO16 3QG: before 2020SO16 3QH: before 2020SO16 3QJ: before 2020SO16 3QN: before 2020SO16 3QP: before 2020SO16 3QQ: before 2020SO16 3QR: before 2020SO16 3QS: before 2020SO16 3QT: before 2020SO16 3QX: before 2020SO16 3RB: before 2020SO16 3RD: before 2020SO16 3RF: before 2020SO16 3TN: before 2020SO16 3TP: before 2020SO16 3TQ: before 2020SO16 3TR: before 2020SO16 3TS: before 2020SO16 3TT: before 2020SO16 3TU: before 2020SO16 3TX: before 2020SO16 3TY: before 2020SO16 3TZ: before 2020SO16 3UB: before 2020SO16 3UD: before 2020SO16 3UH: before 2020SO16 3UJ: before 2020SO16 3UL: before 2020SO16 3ZE: before 2020SO16 3ZF: before 2020SO16 3ZG: before 2020SO16 3XS: new since 2020 BassettSwaythling Map of every postcode in the SO16 3 sector, by new since 2020 Of the 219 postcodes in the SO16 3 sector that ONS places, 1 are new since 2020 and 218 were in use before 2020. Places named: Bassett, Swaythling. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A335A33M27 BassettSwaythling
  • New since 2020: 1
  • In use before 2020: 218

Of the 219 postcodes in the SO16 3 sector that ONS places, 1 are new since 2020 and 218 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 newest postcode

SO16 3XSJune 2020

What do homes sell for in SO16 3?

Homes in SO16 3 sold for a typical £305,001 in the 12 months to August 2026, across 70 sales, down 0.8% on the 12 months before, HM Land Registry's figures show.

£305,001 typical price, the 12 months to August 2026
£307,500 12 months to August 2025
▼ down 0.8% on the 12 months before
  • Detached £590,000 19 sales
  • Semi-detached £300,000 28 sales
  • Terraced £241,000 14 sales
  • Flat or maisonette £215,000 9 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 SO16 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 SO16 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.

SO16 3ATSO16 3AUSO16 3AWSO16 3AXSO16 3AYSO16 3AZSO16 3BASO16 3BBSO16 3BDSO16 3BESO16 3BGSO16 3BHSO16 3BJSO16 3BLSO16 3BNSO16 3BPSO16 3BQSO16 3BRSO16 3BSSO16 3BTSO16 3BUSO16 3BWSO16 3BXSO16 3BYSO16 3BZSO16 3DASO16 3DBSO16 3DDSO16 3DESO16 3DFSO16 3DGSO16 3DHSO16 3DJSO16 3DLSO16 3DNSO16 3DPSO16 3DQSO16 3DRSO16 3DSSO16 3DTSO16 3DUSO16 3DWSO16 3DXSO16 3DYSO16 3DZSO16 3EBSO16 3EESO16 3EFSO16 3EGSO16 3EHSO16 3EJSO16 3ELSO16 3ENSO16 3EPSO16 3EQSO16 3ETSO16 3EUSO16 3EWSO16 3FGSO16 3FHSO16 3FUSO16 3FXSO16 3FYSO16 3FZSO16 3GASO16 3GBSO16 3GDSO16 3GESO16 3GFSO16 3GGSO16 3GHSO16 3GJSO16 3GLSO16 3GNSO16 3GPSO16 3GQSO16 3GRSO16 3GSSO16 3GTSO16 3GUSO16 3GWSO16 3GXSO16 3GYSO16 3GZSO16 3HASO16 3HBSO16 3HDSO16 3HFSO16 3HHSO16 3HJSO16 3HLSO16 3HNSO16 3HPSO16 3HQSO16 3HRSO16 3HSSO16 3HTSO16 3HUSO16 3HWSO16 3HXSO16 3HYSO16 3HZSO16 3JASO16 3JBSO16 3JDSO16 3JESO16 3JFSO16 3JGSO16 3JHSO16 3JJSO16 3JLSO16 3JNSO16 3JPSO16 3JQSO16 3JRSO16 3JSSO16 3JTSO16 3JUSO16 3JWSO16 3JXSO16 3JYSO16 3JZSO16 3LASO16 3LBSO16 3LDSO16 3LESO16 3LFSO16 3LGSO16 3LHSO16 3LJSO16 3LLSO16 3LNSO16 3LPSO16 3LQSO16 3LRSO16 3LSSO16 3LTSO16 3LUSO16 3LWSO16 3LXSO16 3LYSO16 3LZSO16 3NASO16 3NBSO16 3NDSO16 3NESO16 3NFSO16 3NGSO16 3NJSO16 3NLSO16 3NNSO16 3NPSO16 3NQSO16 3NRSO16 3NSSO16 3NTSO16 3NUSO16 3NWSO16 3NXSO16 3NYSO16 3NZSO16 3PASO16 3PBSO16 3PDSO16 3PESO16 3PFSO16 3PGSO16 3PHSO16 3PJSO16 3PLSO16 3PNSO16 3PPSO16 3PQSO16 3PRSO16 3PSSO16 3PTSO16 3PUSO16 3PWSO16 3PYSO16 3PZSO16 3QASO16 3QBSO16 3QDSO16 3QESO16 3QFSO16 3QGSO16 3QHSO16 3QJSO16 3QNSO16 3QPSO16 3QQSO16 3QRSO16 3QSSO16 3QTSO16 3QXSO16 3RBSO16 3RDSO16 3RFSO16 3TNSO16 3TPSO16 3TQSO16 3TRSO16 3TSSO16 3TTSO16 3TUSO16 3TXSO16 3TYSO16 3TZSO16 3UBSO16 3UDSO16 3UFSO16 3UHSO16 3UJSO16 3ULSO16 3XSSO16 3XWSO16 3ZESO16 3ZFSO16 3ZG

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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