SO51 9 postcode sector in the SO51 district

SO51 9 is a sector of the SO51 district: every postcode that starts SO51 9. It has 64 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 SO51 9 sector, by gigabit broadband

Map of every postcode in the SO51 9 sector, by gigabit broadband Of the 64 postcodes in the SO51 9 sector that ONS places, 39 have no home or business that can get gigabit, 9 have some that can, 13 can all get it and 3 have no Ofcom figure. One group of postcodes without gigabit is outlined: 10 postcodes without gigabit. Places named: Romsey, North Baddesley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M27A3057 SO51 9AS: no Ofcom figureSO51 9AY: no Ofcom figureSO51 9ZD: no Ofcom figureSO51 9AB: gigabit for allSO51 9AE: gigabit for allSO51 9AL: gigabit for allSO51 9AN: gigabit for allSO51 9AP: gigabit for allSO51 9AU: gigabit for allSO51 9DH: gigabit for allSO51 9DJ: gigabit for allSO51 9DN: gigabit for allSO51 9DQ: gigabit for allSO51 9LP: gigabit for allSO51 9AA: some gigabitSO51 9AF: some gigabitSO51 9AJ: some gigabitSO51 9AQ: some gigabitSO51 9AW: some gigabitSO51 9DF: some gigabitSO51 9DG: some gigabitSO51 9DL: some gigabitSO51 9LB: some gigabitSO51 9AG: no gigabitSO51 9AT: no gigabitSO51 9AX: no gigabitSO51 9BA: no gigabitSO51 9BB: no gigabitSO51 9BD: no gigabitSO51 9BE: no gigabitSO51 9BG: no gigabitSO51 9BJ: no gigabitSO51 9BL: no gigabitSO51 9BN: no gigabitSO51 9BP: no gigabitSO51 9BQ: no gigabitSO51 9BR: no gigabitSO51 9BT: no gigabitSO51 9BU: no gigabitSO51 9BW: no gigabitSO51 9BX: no gigabitSO51 9BY: no gigabitSO51 9BZ: no gigabitSO51 9DA: no gigabitSO51 9DB: no gigabitSO51 9DD: no gigabitSO51 9DE: no gigabitSO51 9LA: no gigabitSO51 9LE: no gigabitSO51 9LF: no gigabitSO51 9LG: no gigabitSO51 9LH: no gigabitSO51 9LJ: no gigabitSO51 9LL: no gigabitSO51 9LN: no gigabitSO51 9LQ: no gigabitSO51 9NJ: no gigabitSO51 9PA: no gigabitSO51 9ZE: no gigabitSO51 9ZF: no gigabitSO51 9ZH: no gigabit RomseyNorth Baddesley 10 postcodes without gigabit, outlined: this goes to SO51 9PA, the one nearest the middle of them10 postcodes without gigabit Map of every postcode in the SO51 9 sector, by gigabit broadband Of the 64 postcodes in the SO51 9 sector that ONS places, 39 have no home or business that can get gigabit, 9 have some that can, 13 can all get it and 3 have no Ofcom figure. One group of postcodes without gigabit is outlined: 10 postcodes without gigabit. Places named: Romsey, North Baddesley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A27 RomseyNorth Baddesley
  • No home or business can get gigabit: 39
  • Some can get gigabit: 9
  • Every home and business can get gigabit: 13
  • Ofcom gives no figure: 3
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 64 postcodes in the SO51 9 sector that ONS places, 39 have no home or business that can get gigabit, 9 have some that can, 13 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. A dashed outline shows where 5 or more lie within 280 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.

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

39 postcodes here have no gigabit. These are the 12 first in postcode order.

SO51 9AGSO51 9ATSO51 9AXSO51 9BASO51 9BBSO51 9BDSO51 9BESO51 9BGSO51 9BJSO51 9BLSO51 9BNSO51 9BP

Where the postcodes without gigabit lie together

  • 10 postcodes without gigabit, outlined on the map. SO51 9PA, is the one nearest the middle of them.

What do homes sell for in SO51 9?

Homes in SO51 9 sold for a typical £975,000 in the 12 months to September 2026, across 7 sales, HM Land Registry's figures show. The 12 months before gave £885,000 from 13 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£975,000 typical price, the 12 months to September 2026
£885,000 12 months to September 2025
  • Detached £975,000 7 sales

Standard sales of homes at market value at the postcodes that start SO51 9. 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.

Postcodes in SO51 9

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.

SO51 9AASO51 9ABSO51 9ADSO51 9AESO51 9AFSO51 9AGSO51 9AHSO51 9AJSO51 9ALSO51 9ANSO51 9APSO51 9AQSO51 9ASSO51 9ATSO51 9AUSO51 9AWSO51 9AXSO51 9AYSO51 9BASO51 9BBSO51 9BDSO51 9BESO51 9BGSO51 9BJSO51 9BLSO51 9BNSO51 9BPSO51 9BQSO51 9BRSO51 9BSSO51 9BTSO51 9BUSO51 9BWSO51 9BXSO51 9BYSO51 9BZSO51 9DASO51 9DBSO51 9DDSO51 9DESO51 9DFSO51 9DGSO51 9DHSO51 9DJSO51 9DLSO51 9DNSO51 9DQSO51 9LASO51 9LBSO51 9LESO51 9LFSO51 9LGSO51 9LHSO51 9LJSO51 9LLSO51 9LNSO51 9LPSO51 9LQSO51 9NJSO51 9PASO51 9ZDSO51 9ZESO51 9ZFSO51 9ZH

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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