SO31 1 postcode sector in the SO31 district

SO31 1 is a sector of the SO31 district: every postcode that starts SO31 1. It has 74 postcodes in use, one of them a large-user postcode. 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 1 sector, and which are new since 2020

Map of every postcode in the SO31 1 sector, by new since 2020 Of the 74 postcodes in the SO31 1 sector that ONS places, 5 are new since 2020 and 69 were in use before 2020. Places named: Park Gate, Sarisbury & Whiteley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M27A27 SO31 1AA: before 2020SO31 1AB: before 2020SO31 1AD: before 2020SO31 1AE: before 2020SO31 1AH: before 2020SO31 1AJ: before 2020SO31 1AP: before 2020SO31 1AQ: before 2020SO31 1AR: before 2020SO31 1AY: before 2020SO31 1AZ: before 2020SO31 1BA: before 2020SO31 1BB: before 2020SO31 1BD: before 2020SO31 1BE: before 2020SO31 1BG: before 2020SO31 1BH: before 2020SO31 1BJ: before 2020SO31 1BL: before 2020SO31 1BN: before 2020SO31 1BP: before 2020SO31 1BQ: before 2020SO31 1BR: before 2020SO31 1BS: before 2020SO31 1BT: before 2020SO31 1BU: before 2020SO31 1BW: before 2020SO31 1BX: before 2020SO31 1BY: before 2020SO31 1BZ: before 2020SO31 1DA: before 2020SO31 1DB: before 2020SO31 1DD: before 2020SO31 1DG: before 2020SO31 1DH: before 2020SO31 1DJ: before 2020SO31 1DL: before 2020SO31 1DN: before 2020SO31 1DP: before 2020SO31 1DQ: before 2020SO31 1DR: before 2020SO31 1DS: before 2020SO31 1DT: before 2020SO31 1DU: before 2020SO31 1DW: before 2020SO31 1DX: before 2020SO31 1DY: before 2020SO31 1DZ: before 2020SO31 1EA: before 2020SO31 1EB: before 2020SO31 1ED: before 2020SO31 1EE: before 2020SO31 1EG: before 2020SO31 1EP: before 2020SO31 1ER: before 2020SO31 1ES: before 2020SO31 1ET: before 2020SO31 1EU: before 2020SO31 1EW: before 2020SO31 1EX: before 2020SO31 1EY: before 2020SO31 1EZ: before 2020SO31 1FQ: before 2020SO31 1FW: before 2020SO31 1ZJ: before 2020SO31 1ZL: before 2020SO31 1ZS: before 2020SO31 1ZT: before 2020SO31 1FA: new since 2020SO31 1FB: new since 2020SO31 1FD: new since 2020SO31 1FF: new since 2020SO31 1FG: new since 2020 Park GateSarisbury & Whiteley Map of every postcode in the SO31 1 sector, by new since 2020 Of the 74 postcodes in the SO31 1 sector that ONS places, 5 are new since 2020 and 69 were in use before 2020. Places named: Park Gate, Sarisbury & Whiteley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M27 Park GateSarisbury & Whiteley
  • New since 2020: 5
  • In use before 2020: 69

Of the 74 postcodes in the SO31 1 sector that ONS places, 5 are new since 2020 and 69 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 5 newest postcodes

SO31 1FFJuly 2026SO31 1FGJuly 2025SO31 1FBOctober 2023SO31 1FDFebruary 2023SO31 1FAMarch 2022

What do homes sell for in SO31 1?

Homes in SO31 1 sold for a typical £430,000 in the 12 months to August 2026, across 43 sales, up 16.2% on the 12 months before, HM Land Registry's figures show.

£430,000 typical price, the 12 months to August 2026
£369,950 12 months to August 2025
▲ up 16.2% on the 12 months before
  • Detached £622,500 24 sales
  • Semi-detached £335,000 9 sales
  • Terraced 2 sales, too few to price
  • Flat or maisonette £202,500 8 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 1. 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 1

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 1AASO31 1ABSO31 1ADSO31 1AESO31 1AHSO31 1AJSO31 1APSO31 1AQSO31 1ARSO31 1AYSO31 1AZSO31 1BASO31 1BBSO31 1BDSO31 1BESO31 1BGSO31 1BHSO31 1BJSO31 1BLSO31 1BNSO31 1BPSO31 1BQSO31 1BRSO31 1BSSO31 1BTSO31 1BUSO31 1BWSO31 1BXSO31 1BYSO31 1BZSO31 1DASO31 1DBSO31 1DDSO31 1DESO31 1DGSO31 1DHSO31 1DJSO31 1DLSO31 1DNSO31 1DPSO31 1DQSO31 1DRSO31 1DSSO31 1DTSO31 1DUSO31 1DWSO31 1DXSO31 1DYSO31 1DZSO31 1EASO31 1EBSO31 1EDSO31 1EESO31 1EGSO31 1EPSO31 1ERSO31 1ESSO31 1ETSO31 1EUSO31 1EWSO31 1EXSO31 1EYSO31 1EZSO31 1FASO31 1FBSO31 1FDSO31 1FFSO31 1FGSO31 1FQSO31 1FWSO31 1ZJSO31 1ZLSO31 1ZSSO31 1ZT

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.