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, by gigabit broadband

Map of every postcode in the SO31 1 sector, by gigabit broadband Of the 74 postcodes in the SO31 1 sector that ONS places, 4 have no home or business that can get gigabit, 10 have some that can, 57 can all get it and 3 have no Ofcom figure. 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 1FA: no Ofcom figureSO31 1FF: no Ofcom figureSO31 1ZL: no Ofcom figureSO31 1AE: gigabit for allSO31 1AH: gigabit for allSO31 1AJ: gigabit for allSO31 1AP: gigabit for allSO31 1AY: gigabit for allSO31 1AZ: gigabit for allSO31 1BA: gigabit for allSO31 1BB: gigabit for allSO31 1BD: gigabit for allSO31 1BE: gigabit for allSO31 1BG: gigabit for allSO31 1BN: gigabit for allSO31 1BP: gigabit for allSO31 1BR: gigabit for allSO31 1BS: gigabit for allSO31 1BT: gigabit for allSO31 1BX: gigabit for allSO31 1BY: gigabit for allSO31 1BZ: gigabit for allSO31 1DA: gigabit for allSO31 1DB: gigabit for allSO31 1DD: gigabit for allSO31 1DG: gigabit for allSO31 1DL: gigabit for allSO31 1DN: gigabit for allSO31 1DP: gigabit for allSO31 1DQ: gigabit for allSO31 1DR: gigabit for allSO31 1DS: gigabit for allSO31 1DT: gigabit for allSO31 1DU: gigabit for allSO31 1DW: gigabit for allSO31 1DX: gigabit for allSO31 1DY: gigabit for allSO31 1DZ: gigabit for allSO31 1EA: gigabit for allSO31 1EB: gigabit for allSO31 1ED: gigabit for allSO31 1EE: gigabit for allSO31 1EP: gigabit for allSO31 1ER: gigabit for allSO31 1ES: gigabit for allSO31 1ET: gigabit for allSO31 1EU: gigabit for allSO31 1EW: gigabit for allSO31 1EX: gigabit for allSO31 1EY: gigabit for allSO31 1EZ: gigabit for allSO31 1FB: gigabit for allSO31 1FD: gigabit for allSO31 1FG: gigabit for allSO31 1FQ: gigabit for allSO31 1FW: gigabit for allSO31 1ZJ: gigabit for allSO31 1ZS: gigabit for allSO31 1ZT: gigabit for allSO31 1AA: some gigabitSO31 1AQ: some gigabitSO31 1AR: some gigabitSO31 1BH: some gigabitSO31 1BJ: some gigabitSO31 1BL: some gigabitSO31 1BQ: some gigabitSO31 1BU: some gigabitSO31 1DJ: some gigabitSO31 1EG: some gigabitSO31 1AB: no gigabitSO31 1AD: no gigabitSO31 1BW: no gigabitSO31 1DH: no gigabit Park GateSarisbury & Whiteley Map of every postcode in the SO31 1 sector, by gigabit broadband Of the 74 postcodes in the SO31 1 sector that ONS places, 4 have no home or business that can get gigabit, 10 have some that can, 57 can all get it and 3 have no Ofcom figure. 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
  • No home or business can get gigabit: 4
  • Some can get gigabit: 10
  • Every home and business can get gigabit: 57
  • Ofcom gives no figure: 3

Of the 74 postcodes in the SO31 1 sector that ONS places, 4 have no home or business that can get gigabit, 10 have some that can, 57 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. 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.

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

What do homes sell for in SO31 1?

Homes in SO31 1 sold for a typical £435,000 in the 12 months to September 2026, across 43 sales, HM Land Registry's figures show. The 12 months before gave £369,950 from 53 sales: not a change larger than chance would explain, given which homes happened to sell.

£435,000 typical price, the 12 months to September 2026
£369,950 12 months to September 2025
  • Detached £642,500 24 sales
  • Semi-detached £335,000 9 sales
  • Terraced 2 sales, too few to price
  • Flat or maisonette £195,000 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 October 2026.

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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