SO31 5 postcode sector in the SO31 district

SO31 5 is a sector of the SO31 district: every postcode that starts SO31 5. It has 169 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SO31 5 sector, and which are new since 2020

Map of every postcode in the SO31 5 sector, by new since 2020 Of the 169 postcodes in the SO31 5 sector that ONS places, 16 are new since 2020 and 153 were in use before 2020. 2 groups of new postcodes are outlined: 9 new postcodes since 2020; 6 new postcodes since 2020. Places named: Netley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SO31 5AA: before 2020SO31 5AB: before 2020SO31 5AD: before 2020SO31 5AE: before 2020SO31 5AF: before 2020SO31 5AG: before 2020SO31 5AH: before 2020SO31 5AJ: before 2020SO31 5AL: before 2020SO31 5AN: before 2020SO31 5AP: before 2020SO31 5AQ: before 2020SO31 5AR: before 2020SO31 5AS: before 2020SO31 5AT: before 2020SO31 5AU: before 2020SO31 5AW: before 2020SO31 5AX: before 2020SO31 5AY: before 2020SO31 5AZ: before 2020SO31 5BA: before 2020SO31 5BB: before 2020SO31 5BD: before 2020SO31 5BE: before 2020SO31 5BG: before 2020SO31 5BH: before 2020SO31 5BJ: before 2020SO31 5BL: before 2020SO31 5BN: before 2020SO31 5BP: before 2020SO31 5BQ: before 2020SO31 5BR: before 2020SO31 5BS: before 2020SO31 5BT: before 2020SO31 5BU: before 2020SO31 5BW: before 2020SO31 5BX: before 2020SO31 5BY: before 2020SO31 5BZ: before 2020SO31 5DA: before 2020SO31 5DB: before 2020SO31 5DD: before 2020SO31 5DE: before 2020SO31 5DF: before 2020SO31 5DG: before 2020SO31 5DH: before 2020SO31 5DJ: before 2020SO31 5DL: before 2020SO31 5DN: before 2020SO31 5DP: before 2020SO31 5DQ: before 2020SO31 5DR: before 2020SO31 5DS: before 2020SO31 5DT: before 2020SO31 5DU: before 2020SO31 5DW: before 2020SO31 5DX: before 2020SO31 5DY: before 2020SO31 5DZ: before 2020SO31 5EA: before 2020SO31 5EB: before 2020SO31 5ED: before 2020SO31 5EE: before 2020SO31 5EG: before 2020SO31 5EH: before 2020SO31 5EJ: before 2020SO31 5EL: before 2020SO31 5EN: before 2020SO31 5EP: before 2020SO31 5EQ: before 2020SO31 5ER: before 2020SO31 5ES: before 2020SO31 5ET: before 2020SO31 5EU: before 2020SO31 5EY: before 2020SO31 5EZ: before 2020SO31 5FA: before 2020SO31 5FB: before 2020SO31 5FD: before 2020SO31 5FE: before 2020SO31 5FF: before 2020SO31 5FG: before 2020SO31 5FH: before 2020SO31 5FJ: before 2020SO31 5FL: before 2020SO31 5FN: before 2020SO31 5FP: before 2020SO31 5FQ: before 2020SO31 5FR: before 2020SO31 5FS: before 2020SO31 5FT: before 2020SO31 5FU: before 2020SO31 5FW: before 2020SO31 5FX: before 2020SO31 5FY: before 2020SO31 5FZ: before 2020SO31 5GA: before 2020SO31 5GB: before 2020SO31 5GD: before 2020SO31 5GE: before 2020SO31 5GF: before 2020SO31 5GG: before 2020SO31 5GH: before 2020SO31 5GJ: before 2020SO31 5GL: before 2020SO31 5GN: before 2020SO31 5GP: before 2020SO31 5GQ: before 2020SO31 5GR: before 2020SO31 5GS: before 2020SO31 5GT: before 2020SO31 5GU: before 2020SO31 5GW: before 2020SO31 5GX: before 2020SO31 5GY: before 2020SO31 5GZ: before 2020SO31 5HA: before 2020SO31 5HB: before 2020SO31 5HH: before 2020SO31 5HJ: before 2020SO31 5HL: before 2020SO31 5HN: before 2020SO31 5HP: before 2020SO31 5HQ: before 2020SO31 5HR: before 2020SO31 5HT: before 2020SO31 5HU: before 2020SO31 5HW: before 2020SO31 5HX: before 2020SO31 5HY: before 2020SO31 5JA: before 2020SO31 5JG: before 2020SO31 5JQ: before 2020SO31 5JS: before 2020SO31 5JZ: before 2020SO31 5PH: before 2020SO31 5PL: before 2020SO31 5PN: before 2020SO31 5PP: before 2020SO31 5PS: before 2020SO31 5PT: before 2020SO31 5PU: before 2020SO31 5PW: before 2020SO31 5PX: before 2020SO31 5PY: before 2020SO31 5PZ: before 2020SO31 5QA: before 2020SO31 5QB: before 2020SO31 5QJ: before 2020SO31 5QN: before 2020SO31 5QX: before 2020SO31 5RA: before 2020SO31 5RR: before 2020SO31 5HD: new since 2020SO31 5HZ: new since 2020SO31 5JB: new since 2020SO31 5JD: new since 2020SO31 5JE: new since 2020SO31 5JF: new since 2020SO31 5JH: new since 2020SO31 5JJ: new since 2020SO31 5JL: new since 2020SO31 5JN: new since 2020SO31 5JP: new since 2020SO31 5JR: new since 2020SO31 5JU: new since 2020SO31 5JW: new since 2020SO31 5JY: new since 2020SO31 5TJ: new since 2020 Netley 9 new postcodes since 2020, outlined: this goes to SO31 5JR, the newest of them9 new postcodes since 20206 new postcodes since 2020, outlined: this goes to SO31 5JE, the newest of them6 new postcodes since 2020 Map of every postcode in the SO31 5 sector, by new since 2020 Of the 169 postcodes in the SO31 5 sector that ONS places, 16 are new since 2020 and 153 were in use before 2020. 2 groups of new postcodes are outlined: 9 new postcodes since 2020; 6 new postcodes since 2020. Places named: Netley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Netley 6 new postcodes since 2020, outlined: this goes to SO31 5JE, the newest of them6 new postcodes since 2020
  • New since 2020: 16
  • In use before 2020: 153
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 169 postcodes in the SO31 5 sector that ONS places, 16 are new since 2020 and 153 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn.

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 5 newest postcodes

SO31 5JRFebruary 2025SO31 5JUFebruary 2025SO31 5JPApril 2024SO31 5JYApril 2024SO31 5TJApril 2024

Where the new postcodes lie together

  • 9 new postcodes since 2020, outlined on the map. SO31 5JR, is the newest of them.
  • 6 new postcodes since 2020, outlined on the map. SO31 5JE, is the newest of them.

What do homes sell for in SO31 5?

Homes in SO31 5 sold for a typical £336,000 in the 12 months to August 2026, across 76 sales, down 2.6% on the 12 months before, HM Land Registry's figures show.

£336,000 typical price, the 12 months to August 2026
£345,000 12 months to August 2025
▼ down 2.6% on the 12 months before
  • Detached £445,000 17 sales
  • Semi-detached £350,000 25 sales
  • Terraced £306,000 20 sales
  • Flat or maisonette £195,000 14 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 SO31 5. 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 SO31 5

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.

SO31 5AASO31 5ABSO31 5ADSO31 5AESO31 5AFSO31 5AGSO31 5AHSO31 5AJSO31 5ALSO31 5ANSO31 5APSO31 5AQSO31 5ARSO31 5ASSO31 5ATSO31 5AUSO31 5AWSO31 5AXSO31 5AYSO31 5AZSO31 5BASO31 5BBSO31 5BDSO31 5BESO31 5BGSO31 5BHSO31 5BJSO31 5BLSO31 5BNSO31 5BPSO31 5BQSO31 5BRSO31 5BSSO31 5BTSO31 5BUSO31 5BWSO31 5BXSO31 5BYSO31 5BZSO31 5DASO31 5DBSO31 5DDSO31 5DESO31 5DFSO31 5DGSO31 5DHSO31 5DJSO31 5DLSO31 5DNSO31 5DPSO31 5DQSO31 5DRSO31 5DSSO31 5DTSO31 5DUSO31 5DWSO31 5DXSO31 5DYSO31 5DZSO31 5EASO31 5EBSO31 5EDSO31 5EESO31 5EGSO31 5EHSO31 5EJSO31 5ELSO31 5ENSO31 5EPSO31 5EQSO31 5ERSO31 5ESSO31 5ETSO31 5EUSO31 5EYSO31 5EZSO31 5FASO31 5FBSO31 5FDSO31 5FESO31 5FFSO31 5FGSO31 5FHSO31 5FJSO31 5FLSO31 5FNSO31 5FPSO31 5FQSO31 5FRSO31 5FSSO31 5FTSO31 5FUSO31 5FWSO31 5FXSO31 5FYSO31 5FZSO31 5GASO31 5GBSO31 5GDSO31 5GESO31 5GFSO31 5GGSO31 5GHSO31 5GJSO31 5GLSO31 5GNSO31 5GPSO31 5GQSO31 5GRSO31 5GSSO31 5GTSO31 5GUSO31 5GWSO31 5GXSO31 5GYSO31 5GZSO31 5HASO31 5HBSO31 5HDSO31 5HHSO31 5HJSO31 5HLSO31 5HNSO31 5HPSO31 5HQSO31 5HRSO31 5HTSO31 5HUSO31 5HWSO31 5HXSO31 5HYSO31 5HZSO31 5JASO31 5JBSO31 5JDSO31 5JESO31 5JFSO31 5JGSO31 5JHSO31 5JJSO31 5JLSO31 5JNSO31 5JPSO31 5JQSO31 5JRSO31 5JSSO31 5JUSO31 5JWSO31 5JYSO31 5JZSO31 5PHSO31 5PLSO31 5PNSO31 5PPSO31 5PSSO31 5PTSO31 5PUSO31 5PWSO31 5PXSO31 5PYSO31 5PZSO31 5QASO31 5QBSO31 5QJSO31 5QNSO31 5QXSO31 5RASO31 5RRSO31 5TJ

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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