SO23 8 postcode sector in the SO23 district

SO23 8 is a sector of the SO23 district: every postcode that starts SO23 8. It has 120 postcodes in use, 19 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 SO23 8 sector, by flood risk

Map of every postcode in the SO23 8 sector, by flood risk Of the 120 postcodes in the SO23 8 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 99 are not on the Environment Agency's at-risk list. Places named: St Michael, St Bartholomew. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M3 SO23 8AA: not on the flood risk listSO23 8AH: not on the flood risk listSO23 8AJ: not on the flood risk listSO23 8AL: not on the flood risk listSO23 8AP: not on the flood risk listSO23 8AR: not on the flood risk listSO23 8AS: not on the flood risk listSO23 8AT: not on the flood risk listSO23 8AU: not on the flood risk listSO23 8AX: not on the flood risk listSO23 8AZ: not on the flood risk listSO23 8BA: not on the flood risk listSO23 8BB: not on the flood risk listSO23 8BE: not on the flood risk listSO23 8BG: not on the flood risk listSO23 8BH: not on the flood risk listSO23 8BL: not on the flood risk listSO23 8BP: not on the flood risk listSO23 8BS: not on the flood risk listSO23 8BW: not on the flood risk listSO23 8BX: not on the flood risk listSO23 8DA: not on the flood risk listSO23 8DF: not on the flood risk listSO23 8DH: not on the flood risk listSO23 8DN: not on the flood risk listSO23 8DT: not on the flood risk listSO23 8DY: not on the flood risk listSO23 8EA: not on the flood risk listSO23 8EB: not on the flood risk listSO23 8EJ: not on the flood risk listSO23 8EL: not on the flood risk listSO23 8FA: not on the flood risk listSO23 8FE: not on the flood risk listSO23 8FF: not on the flood risk listSO23 8FG: not on the flood risk listSO23 8FJ: not on the flood risk listSO23 8FL: not on the flood risk listSO23 8FN: not on the flood risk listSO23 8GA: not on the flood risk listSO23 8GB: not on the flood risk listSO23 8GE: not on the flood risk listSO23 8GF: not on the flood risk listSO23 8GG: not on the flood risk listSO23 8GH: not on the flood risk listSO23 8GJ: not on the flood risk listSO23 8GL: not on the flood risk listSO23 8GQ: not on the flood risk listSO23 8GW: not on the flood risk listSO23 8HP: not on the flood risk listSO23 8HS: not on the flood risk listSO23 8RA: not on the flood risk listSO23 8RB: not on the flood risk listSO23 8RD: not on the flood risk listSO23 8RE: not on the flood risk listSO23 8RG: not on the flood risk listSO23 8RJ: not on the flood risk listSO23 8RR: not on the flood risk listSO23 8RS: not on the flood risk listSO23 8RU: not on the flood risk listSO23 8RY: not on the flood risk listSO23 8RZ: not on the flood risk listSO23 8SA: not on the flood risk listSO23 8SB: not on the flood risk listSO23 8SD: not on the flood risk listSO23 8SE: not on the flood risk listSO23 8SH: not on the flood risk listSO23 8SJ: not on the flood risk listSO23 8SL: not on the flood risk listSO23 8SN: not on the flood risk listSO23 8SP: not on the flood risk listSO23 8SR: not on the flood risk listSO23 8SU: not on the flood risk listSO23 8SW: not on the flood risk listSO23 8SX: not on the flood risk listSO23 8SY: not on the flood risk listSO23 8SZ: not on the flood risk listSO23 8TA: not on the flood risk listSO23 8TE: not on the flood risk listSO23 8TG: not on the flood risk listSO23 8TH: not on the flood risk listSO23 8TJ: not on the flood risk listSO23 8TP: not on the flood risk listSO23 8TQ: not on the flood risk listSO23 8UB: not on the flood risk listSO23 8UH: not on the flood risk listSO23 8UL: not on the flood risk listSO23 8UT: not on the flood risk listSO23 8UX: not on the flood risk listSO23 8UY: not on the flood risk listSO23 8WW: not on the flood risk listSO23 8ZD: not on the flood risk listSO23 8DB: very low flood risk onlySO23 8DD: very low flood risk onlySO23 8DG: very low flood risk onlySO23 8HW: very low flood risk onlySO23 8AF: low flood risk at worstSO23 8AQ: low flood risk at worstSO23 8BQ: low flood risk at worstSO23 8DP: low flood risk at worstSO23 8DQ: low flood risk at worstSO23 8DR: low flood risk at worstSO23 8DS: low flood risk at worstSO23 8DU: low flood risk at worstSO23 8ED: low flood risk at worstSO23 8EG: low flood risk at worstSO23 8QX: low flood risk at worstSO23 8QY: low flood risk at worstSO23 8AE: medium flood risk at worstSO23 8DJ: medium flood risk at worstSO23 8DL: high flood riskSO23 8DX: high flood riskSO23 8DZ: high flood risk St MichaelSt Bartholomew Map of every postcode in the SO23 8 sector, by flood risk Of the 120 postcodes in the SO23 8 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 99 are not on the Environment Agency's at-risk list. Places named: St Michael, St Bartholomew. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. St MichaelSt Bartholomew
  • A home or business at high risk: 3
  • At medium risk at worst: 2
  • At low risk at worst: 12
  • At very low risk only: 4
  • Not on the at-risk list: 99

Of the 120 postcodes in the SO23 8 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 99 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. 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.

SO23 8DX13 at high riskSO23 8DL1 at high riskSO23 8DZ1 at high risk

What do homes sell for in SO23 8?

Homes in SO23 8 sold for a typical £440,000 in the 12 months to August 2026, across 52 sales, down 13.3% on the 12 months before, HM Land Registry's figures show.

£440,000 typical price, the 12 months to August 2026
£507,500 12 months to August 2025
▼ down 13.3% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached 3 sales, too few to price
  • Terraced £607,500 20 sales
  • Flat or maisonette £231,500 28 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 SO23 8. 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 SO23 8

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.

SO23 8AASO23 8AESO23 8AFSO23 8AHSO23 8AJSO23 8ALSO23 8APSO23 8AQSO23 8ARSO23 8ASSO23 8ATSO23 8AUSO23 8AXSO23 8AZSO23 8BASO23 8BBSO23 8BESO23 8BGSO23 8BHSO23 8BLSO23 8BPSO23 8BQSO23 8BSSO23 8BWSO23 8BXSO23 8DASO23 8DBSO23 8DDSO23 8DFSO23 8DGSO23 8DHSO23 8DJSO23 8DLSO23 8DNSO23 8DPSO23 8DQSO23 8DRSO23 8DSSO23 8DTSO23 8DUSO23 8DXSO23 8DYSO23 8DZSO23 8EASO23 8EBSO23 8EDSO23 8EGSO23 8EJSO23 8ELSO23 8FASO23 8FESO23 8FFSO23 8FGSO23 8FJSO23 8FLSO23 8FNSO23 8GASO23 8GBSO23 8GESO23 8GFSO23 8GGSO23 8GHSO23 8GJSO23 8GLSO23 8GQSO23 8GWSO23 8HPSO23 8HSSO23 8HWSO23 8QXSO23 8QYSO23 8RASO23 8RBSO23 8RDSO23 8RESO23 8RGSO23 8RJSO23 8RRSO23 8RSSO23 8RUSO23 8RYSO23 8RZSO23 8SASO23 8SBSO23 8SDSO23 8SESO23 8SHSO23 8SJSO23 8SLSO23 8SNSO23 8SPSO23 8SRSO23 8SUSO23 8SWSO23 8SXSO23 8SYSO23 8SZSO23 8TASO23 8TESO23 8TGSO23 8THSO23 8TJSO23 8TPSO23 8TQSO23 8UBSO23 8UDSO23 8UESO23 8UGSO23 8UHSO23 8UJSO23 8ULSO23 8UQSO23 8USSO23 8UTSO23 8UXSO23 8UYSO23 8WWSO23 8XNSO23 8ZBSO23 8ZD

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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