SO31 7 postcode sector in the SO31 district

SO31 7 is a sector of the SO31 district: every postcode that starts SO31 7. It has 202 postcodes in use, 4 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 SO31 7 sector, by flood risk

Map of every postcode in the SO31 7 sector, by flood risk Of the 202 postcodes in the SO31 7 sector that ONS places, 11 have a home or business at high risk, 1 are at low risk at worst, 1 are at very low risk only and 189 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Park Gate, Sarisbury & Whiteley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. SO31 7AA: not on the flood risk listSO31 7AB: not on the flood risk listSO31 7AD: not on the flood risk listSO31 7AE: not on the flood risk listSO31 7AF: not on the flood risk listSO31 7AH: not on the flood risk listSO31 7AJ: not on the flood risk listSO31 7AN: not on the flood risk listSO31 7AP: not on the flood risk listSO31 7AQ: not on the flood risk listSO31 7AR: not on the flood risk listSO31 7AS: not on the flood risk listSO31 7AT: not on the flood risk listSO31 7AU: not on the flood risk listSO31 7AW: not on the flood risk listSO31 7AX: not on the flood risk listSO31 7AY: not on the flood risk listSO31 7BA: not on the flood risk listSO31 7BB: not on the flood risk listSO31 7BD: not on the flood risk listSO31 7BE: not on the flood risk listSO31 7BG: not on the flood risk listSO31 7BH: not on the flood risk listSO31 7BJ: not on the flood risk listSO31 7BL: not on the flood risk listSO31 7BN: not on the flood risk listSO31 7BP: not on the flood risk listSO31 7BQ: not on the flood risk listSO31 7BR: not on the flood risk listSO31 7BS: not on the flood risk listSO31 7BT: not on the flood risk listSO31 7BU: not on the flood risk listSO31 7BW: not on the flood risk listSO31 7BX: not on the flood risk listSO31 7BY: not on the flood risk listSO31 7BZ: not on the flood risk listSO31 7DA: not on the flood risk listSO31 7DB: not on the flood risk listSO31 7DD: not on the flood risk listSO31 7DE: not on the flood risk listSO31 7DG: not on the flood risk listSO31 7DH: not on the flood risk listSO31 7DJ: not on the flood risk listSO31 7DL: not on the flood risk listSO31 7DN: not on the flood risk listSO31 7DP: not on the flood risk listSO31 7DQ: not on the flood risk listSO31 7DR: not on the flood risk listSO31 7DS: not on the flood risk listSO31 7DT: not on the flood risk listSO31 7DU: not on the flood risk listSO31 7DW: not on the flood risk listSO31 7DX: not on the flood risk listSO31 7DY: not on the flood risk listSO31 7DZ: not on the flood risk listSO31 7EA: not on the flood risk listSO31 7ED: not on the flood risk listSO31 7EE: not on the flood risk listSO31 7EH: not on the flood risk listSO31 7EJ: not on the flood risk listSO31 7EL: not on the flood risk listSO31 7EN: not on the flood risk listSO31 7EP: not on the flood risk listSO31 7EQ: not on the flood risk listSO31 7ER: not on the flood risk listSO31 7ES: not on the flood risk listSO31 7ET: not on the flood risk listSO31 7EU: not on the flood risk listSO31 7EW: not on the flood risk listSO31 7EY: not on the flood risk listSO31 7EZ: not on the flood risk listSO31 7FB: not on the flood risk listSO31 7FD: not on the flood risk listSO31 7FE: not on the flood risk listSO31 7FF: not on the flood risk listSO31 7FG: not on the flood risk listSO31 7FH: not on the flood risk listSO31 7FJ: not on the flood risk listSO31 7FP: not on the flood risk listSO31 7FR: not on the flood risk listSO31 7FT: not on the flood risk listSO31 7FX: not on the flood risk listSO31 7FY: not on the flood risk listSO31 7FZ: not on the flood risk listSO31 7GA: not on the flood risk listSO31 7GD: not on the flood risk listSO31 7GE: not on the flood risk listSO31 7GF: not on the flood risk listSO31 7GG: not on the flood risk listSO31 7GH: not on the flood risk listSO31 7GJ: not on the flood risk listSO31 7GL: not on the flood risk listSO31 7GN: not on the flood risk listSO31 7GP: not on the flood risk listSO31 7GQ: not on the flood risk listSO31 7GR: not on the flood risk listSO31 7GT: not on the flood risk listSO31 7GU: not on the flood risk listSO31 7GX: not on the flood risk listSO31 7GY: not on the flood risk listSO31 7GZ: not on the flood risk listSO31 7HA: not on the flood risk listSO31 7HB: not on the flood risk listSO31 7HD: not on the flood risk listSO31 7HE: not on the flood risk listSO31 7HF: not on the flood risk listSO31 7HG: not on the flood risk listSO31 7HH: not on the flood risk listSO31 7HL: not on the flood risk listSO31 7HN: not on the flood risk listSO31 7HQ: not on the flood risk listSO31 7HR: not on the flood risk listSO31 7HZ: not on the flood risk listSO31 7JH: not on the flood risk listSO31 7JP: not on the flood risk listSO31 7JS: not on the flood risk listSO31 7JT: not on the flood risk listSO31 7LA: not on the flood risk listSO31 7LB: not on the flood risk listSO31 7LD: not on the flood risk listSO31 7LE: not on the flood risk listSO31 7LF: not on the flood risk listSO31 7LG: not on the flood risk listSO31 7LH: not on the flood risk listSO31 7LJ: not on the flood risk listSO31 7LL: not on the flood risk listSO31 7LP: not on the flood risk listSO31 7LQ: not on the flood risk listSO31 7LR: not on the flood risk listSO31 7LS: not on the flood risk listSO31 7LT: not on the flood risk listSO31 7LU: not on the flood risk listSO31 7LW: not on the flood risk listSO31 7LX: not on the flood risk listSO31 7LY: not on the flood risk listSO31 7LZ: not on the flood risk listSO31 7NA: not on the flood risk listSO31 7NB: not on the flood risk listSO31 7ND: not on the flood risk listSO31 7NE: not on the flood risk listSO31 7NF: not on the flood risk listSO31 7NG: not on the flood risk listSO31 7NH: not on the flood risk listSO31 7NJ: not on the flood risk listSO31 7NL: not on the flood risk listSO31 7NP: not on the flood risk listSO31 7NQ: not on the flood risk listSO31 7NR: not on the flood risk listSO31 7NS: not on the flood risk listSO31 7NT: not on the flood risk listSO31 7NU: not on the flood risk listSO31 7NW: not on the flood risk listSO31 7NX: not on the flood risk listSO31 7NY: not on the flood risk listSO31 7NZ: not on the flood risk listSO31 7PA: not on the flood risk listSO31 7PB: not on the flood risk listSO31 7PD: not on the flood risk listSO31 7PE: not on the flood risk listSO31 7PF: not on the flood risk listSO31 7PG: not on the flood risk listSO31 7PH: not on the flood risk listSO31 7PJ: not on the flood risk listSO31 7PL: not on the flood risk listSO31 7PN: not on the flood risk listSO31 7PP: not on the flood risk listSO31 7PQ: not on the flood risk listSO31 7PR: not on the flood risk listSO31 7PT: not on the flood risk listSO31 7PU: not on the flood risk listSO31 7PW: not on the flood risk listSO31 7PX: not on the flood risk listSO31 7PY: not on the flood risk listSO31 7PZ: not on the flood risk listSO31 7QA: not on the flood risk listSO31 7QB: not on the flood risk listSO31 7QD: not on the flood risk listSO31 7SL: not on the flood risk listSO31 7SZ: not on the flood risk listSO31 7TL: not on the flood risk listSO31 7TQ: not on the flood risk listSO31 7TR: not on the flood risk listSO31 7TT: not on the flood risk listSO31 7WR: not on the flood risk listSO31 7XF: not on the flood risk listSO31 7ZA: not on the flood risk listSO31 7ZE: not on the flood risk listSO31 7ZF: not on the flood risk listSO31 7PS: very low flood risk onlySO31 7GS: low flood risk at worstSO31 7AL: high flood riskSO31 7DF: high flood riskSO31 7EB: high flood riskSO31 7EF: high flood riskSO31 7EG: high flood riskSO31 7FL: high flood riskSO31 7FN: high flood riskSO31 7GB: high flood riskSO31 7GW: high flood riskSO31 7HP: high flood riskSO31 7ZN: high flood risk Park GateSarisbury & Whiteley 6 postcodes at high or medium risk, outlined: this goes to SO31 7GB, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the SO31 7 sector, by flood risk Of the 202 postcodes in the SO31 7 sector that ONS places, 11 have a home or business at high risk, 1 are at low risk at worst, 1 are at very low risk only and 189 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Park Gate, Sarisbury & Whiteley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A3051 Park GateSarisbury & Whiteley
  • A home or business at high risk: 11
  • At medium risk at worst: 0
  • At low risk at worst: 1
  • At very low risk only: 1
  • Not on the at-risk list: 189
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 202 postcodes in the SO31 7 sector that ONS places, 11 have a home or business at high risk, 1 are at low risk at worst, 1 are at very low risk only and 189 are not on the Environment Agency's at-risk list.

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 160 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. 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; flood risk: Environment Agency, published 6 July 2026; 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 postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

SO31 7GB12 at high riskSO31 7HP7 at high riskSO31 7EF5 at high riskSO31 7FN5 at high riskSO31 7EG3 at high riskSO31 7FL2 at high riskSO31 7ZN2 at high riskSO31 7AL1 at high riskSO31 7DF1 at high riskSO31 7EB1 at high riskSO31 7GW1 at high risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. SO31 7GB, is the one with most homes and businesses at high risk.

What do homes sell for in SO31 7?

Homes in SO31 7 sold for a typical £400,000 in the 12 months to August 2026, across 95 sales, up 2.6% on the 12 months before, HM Land Registry's figures show.

£400,000 typical price, the 12 months to August 2026
£390,000 12 months to August 2025
▲ up 2.6% on the 12 months before
  • Detached £525,000 44 sales
  • Semi-detached £377,750 22 sales
  • Terraced £332,500 16 sales
  • Flat or maisonette £205,000 13 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 7. 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 7

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 7AASO31 7ABSO31 7ADSO31 7AESO31 7AFSO31 7AHSO31 7AJSO31 7ALSO31 7ANSO31 7APSO31 7AQSO31 7ARSO31 7ASSO31 7ATSO31 7AUSO31 7AWSO31 7AXSO31 7AYSO31 7BASO31 7BBSO31 7BDSO31 7BESO31 7BGSO31 7BHSO31 7BJSO31 7BLSO31 7BNSO31 7BPSO31 7BQSO31 7BRSO31 7BSSO31 7BTSO31 7BUSO31 7BWSO31 7BXSO31 7BYSO31 7BZSO31 7DASO31 7DBSO31 7DDSO31 7DESO31 7DFSO31 7DGSO31 7DHSO31 7DJSO31 7DLSO31 7DNSO31 7DPSO31 7DQSO31 7DRSO31 7DSSO31 7DTSO31 7DUSO31 7DWSO31 7DXSO31 7DYSO31 7DZSO31 7EASO31 7EBSO31 7EDSO31 7EESO31 7EFSO31 7EGSO31 7EHSO31 7EJSO31 7ELSO31 7ENSO31 7EPSO31 7EQSO31 7ERSO31 7ESSO31 7ETSO31 7EUSO31 7EWSO31 7EYSO31 7EZSO31 7FBSO31 7FDSO31 7FESO31 7FFSO31 7FGSO31 7FHSO31 7FJSO31 7FLSO31 7FNSO31 7FPSO31 7FRSO31 7FTSO31 7FXSO31 7FYSO31 7FZSO31 7GASO31 7GBSO31 7GDSO31 7GESO31 7GFSO31 7GGSO31 7GHSO31 7GJSO31 7GLSO31 7GNSO31 7GPSO31 7GQSO31 7GRSO31 7GSSO31 7GTSO31 7GUSO31 7GWSO31 7GXSO31 7GYSO31 7GZSO31 7HASO31 7HBSO31 7HDSO31 7HESO31 7HFSO31 7HGSO31 7HHSO31 7HLSO31 7HNSO31 7HPSO31 7HQSO31 7HRSO31 7HZSO31 7JHSO31 7JPSO31 7JSSO31 7JTSO31 7LASO31 7LBSO31 7LDSO31 7LESO31 7LFSO31 7LGSO31 7LHSO31 7LJSO31 7LLSO31 7LPSO31 7LQSO31 7LRSO31 7LSSO31 7LTSO31 7LUSO31 7LWSO31 7LXSO31 7LYSO31 7LZSO31 7NASO31 7NBSO31 7NDSO31 7NESO31 7NFSO31 7NGSO31 7NHSO31 7NJSO31 7NLSO31 7NPSO31 7NQSO31 7NRSO31 7NSSO31 7NTSO31 7NUSO31 7NWSO31 7NXSO31 7NYSO31 7NZSO31 7PASO31 7PBSO31 7PDSO31 7PESO31 7PFSO31 7PGSO31 7PHSO31 7PJSO31 7PLSO31 7PNSO31 7PPSO31 7PQSO31 7PRSO31 7PSSO31 7PTSO31 7PUSO31 7PWSO31 7PXSO31 7PYSO31 7PZSO31 7QASO31 7QBSO31 7QDSO31 7SLSO31 7SZSO31 7TLSO31 7TQSO31 7TRSO31 7TTSO31 7WRSO31 7XFSO31 7XLSO31 7ZASO31 7ZESO31 7ZFSO31 7ZN

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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