SO51 0 postcode sector in the SO51 district

SO51 0 is a sector of the SO51 district: every postcode that starts SO51 0. It has 203 postcodes in use, 2 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 0 sector, by flood risk

Map of every postcode in the SO51 0 sector, by flood risk Of the 203 postcodes in the SO51 0 sector that ONS places, 17 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst, 2 are at very low risk only and 177 are not on the Environment Agency's at-risk list. Places named: Romsey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A27A3090 SO51 0AA: not on the flood risk listSO51 0AB: not on the flood risk listSO51 0AD: not on the flood risk listSO51 0AF: not on the flood risk listSO51 0AG: not on the flood risk listSO51 0AH: not on the flood risk listSO51 0AL: not on the flood risk listSO51 0AN: not on the flood risk listSO51 0AP: not on the flood risk listSO51 0AQ: not on the flood risk listSO51 0AR: not on the flood risk listSO51 0AS: not on the flood risk listSO51 0AU: not on the flood risk listSO51 0AW: not on the flood risk listSO51 0AX: not on the flood risk listSO51 0AY: not on the flood risk listSO51 0BA: not on the flood risk listSO51 0BB: not on the flood risk listSO51 0BD: not on the flood risk listSO51 0BE: not on the flood risk listSO51 0BF: not on the flood risk listSO51 0BG: not on the flood risk listSO51 0BJ: not on the flood risk listSO51 0BN: not on the flood risk listSO51 0BQ: not on the flood risk listSO51 0BS: not on the flood risk listSO51 0BU: not on the flood risk listSO51 0BY: not on the flood risk listSO51 0DB: not on the flood risk listSO51 0DF: not on the flood risk listSO51 0DG: not on the flood risk listSO51 0DH: not on the flood risk listSO51 0DP: not on the flood risk listSO51 0DQ: not on the flood risk listSO51 0DT: not on the flood risk listSO51 0DW: not on the flood risk listSO51 0DX: not on the flood risk listSO51 0DY: not on the flood risk listSO51 0EB: not on the flood risk listSO51 0EE: not on the flood risk listSO51 0EF: not on the flood risk listSO51 0EG: not on the flood risk listSO51 0EH: not on the flood risk listSO51 0EN: not on the flood risk listSO51 0EP: not on the flood risk listSO51 0EQ: not on the flood risk listSO51 0ER: not on the flood risk listSO51 0GB: not on the flood risk listSO51 0GD: not on the flood risk listSO51 0GE: not on the flood risk listSO51 0GF: not on the flood risk listSO51 0GG: not on the flood risk listSO51 0GH: not on the flood risk listSO51 0GJ: not on the flood risk listSO51 0GL: not on the flood risk listSO51 0GN: not on the flood risk listSO51 0GP: not on the flood risk listSO51 0GQ: not on the flood risk listSO51 0GR: not on the flood risk listSO51 0GS: not on the flood risk listSO51 0GT: not on the flood risk listSO51 0GU: not on the flood risk listSO51 0GY: not on the flood risk listSO51 0HD: not on the flood risk listSO51 0HF: not on the flood risk listSO51 0HG: not on the flood risk listSO51 0HH: not on the flood risk listSO51 0HJ: not on the flood risk listSO51 0HL: not on the flood risk listSO51 0HN: not on the flood risk listSO51 0HQ: not on the flood risk listSO51 0HS: not on the flood risk listSO51 0HT: not on the flood risk listSO51 0JB: not on the flood risk listSO51 0JD: not on the flood risk listSO51 0JE: not on the flood risk listSO51 0JL: not on the flood risk listSO51 0JN: not on the flood risk listSO51 0JP: not on the flood risk listSO51 0JQ: not on the flood risk listSO51 0JS: not on the flood risk listSO51 0JT: not on the flood risk listSO51 0JU: not on the flood risk listSO51 0JW: not on the flood risk listSO51 0JX: not on the flood risk listSO51 0LA: not on the flood risk listSO51 0LF: not on the flood risk listSO51 0LG: not on the flood risk listSO51 0LH: not on the flood risk listSO51 0LJ: not on the flood risk listSO51 0LL: not on the flood risk listSO51 0LP: not on the flood risk listSO51 0LQ: not on the flood risk listSO51 0LR: not on the flood risk listSO51 0LS: not on the flood risk listSO51 0LT: not on the flood risk listSO51 0LU: not on the flood risk listSO51 0LX: not on the flood risk listSO51 0LY: not on the flood risk listSO51 0LZ: not on the flood risk listSO51 0NA: not on the flood risk listSO51 0ND: not on the flood risk listSO51 0NF: not on the flood risk listSO51 0NG: not on the flood risk listSO51 0NH: not on the flood risk listSO51 0NJ: not on the flood risk listSO51 0NL: not on the flood risk listSO51 0NN: not on the flood risk listSO51 0NP: not on the flood risk listSO51 0NQ: not on the flood risk listSO51 0NR: not on the flood risk listSO51 0NS: not on the flood risk listSO51 0NT: not on the flood risk listSO51 0NU: not on the flood risk listSO51 0NW: not on the flood risk listSO51 0NX: not on the flood risk listSO51 0NY: not on the flood risk listSO51 0NZ: not on the flood risk listSO51 0PA: not on the flood risk listSO51 0PB: not on the flood risk listSO51 0PD: not on the flood risk listSO51 0PE: not on the flood risk listSO51 0PG: not on the flood risk listSO51 0PH: not on the flood risk listSO51 0PJ: not on the flood risk listSO51 0PL: not on the flood risk listSO51 0PN: not on the flood risk listSO51 0PP: not on the flood risk listSO51 0PQ: not on the flood risk listSO51 0PR: not on the flood risk listSO51 0PS: not on the flood risk listSO51 0PT: not on the flood risk listSO51 0PU: not on the flood risk listSO51 0PW: not on the flood risk listSO51 0PX: not on the flood risk listSO51 0PY: not on the flood risk listSO51 0QA: not on the flood risk listSO51 0QD: not on the flood risk listSO51 0QE: not on the flood risk listSO51 0QF: not on the flood risk listSO51 0QG: not on the flood risk listSO51 0QH: not on the flood risk listSO51 0QJ: not on the flood risk listSO51 0QL: not on the flood risk listSO51 0QN: not on the flood risk listSO51 0QP: not on the flood risk listSO51 0QR: not on the flood risk listSO51 0QS: not on the flood risk listSO51 0QT: not on the flood risk listSO51 0QU: not on the flood risk listSO51 0QW: not on the flood risk listSO51 0RA: not on the flood risk listSO51 0RG: not on the flood risk listSO51 0RJ: not on the flood risk listSO51 0SF: not on the flood risk listSO51 0ZN: not on the flood risk listSO51 0AE: very low flood risk onlySO51 0LD: very low flood risk onlySO51 0GX: low flood risk at worstSO51 0HP: low flood risk at worstSO51 0JH: low flood risk at worstSO51 0NE: low flood risk at worstSO51 0QB: low flood risk at worstSO51 0AJ: medium flood risk at worstSO51 0JA: medium flood risk at worstSO51 0DR: high flood riskSO51 0EZ: high flood riskSO51 0HA: high flood riskSO51 0HB: high flood riskSO51 0HE: high flood riskSO51 0HR: high flood riskSO51 0JF: high flood riskSO51 0JG: high flood riskSO51 0JJ: high flood riskSO51 0JR: high flood riskSO51 0LB: high flood riskSO51 0LE: high flood riskSO51 0LN: high flood riskSO51 0LW: high flood riskSO51 0NB: high flood riskSO51 0PF: high flood risk Romsey Map of every postcode in the SO51 0 sector, by flood risk Of the 203 postcodes in the SO51 0 sector that ONS places, 17 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst, 2 are at very low risk only and 177 are not on the Environment Agency's at-risk list. Places named: Romsey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A27 Romsey
  • A home or business at high risk: 17
  • At medium risk at worst: 2
  • At low risk at worst: 5
  • At very low risk only: 2
  • Not on the at-risk list: 177

Of the 203 postcodes in the SO51 0 sector that ONS places, 17 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst, 2 are at very low risk only and 177 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.

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

17 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

SO51 0EZ12 at high riskSO51 0HB11 at high riskSO51 0HA9 at high riskSO51 0JG9 at high riskSO51 0LE9 at high riskSO51 0HR4 at high riskSO51 0JF4 at high riskSO51 0PF4 at high riskSO51 0LN2 at high riskSO51 0LW1 at high riskSO51 0JJ1 at high riskSO51 0DR1 at high risk

What do homes sell for in SO51 0?

Homes in SO51 0 sold for a typical £465,000 in the 12 months to August 2026, across 99 sales, down 9.3% on the 12 months before, HM Land Registry's figures show.

£465,000 typical price, the 12 months to August 2026
£512,500 12 months to August 2025
▼ down 9.3% on the 12 months before
  • Detached £700,000 47 sales
  • Semi-detached £403,000 26 sales
  • Terraced £350,000 17 sales
  • Flat or maisonette £399,000 9 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 SO51 0. 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 SO51 0

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 0AASO51 0ABSO51 0ADSO51 0AESO51 0AFSO51 0AGSO51 0AHSO51 0AJSO51 0ALSO51 0ANSO51 0APSO51 0AQSO51 0ARSO51 0ASSO51 0ATSO51 0AUSO51 0AWSO51 0AXSO51 0AYSO51 0AZSO51 0BASO51 0BBSO51 0BDSO51 0BESO51 0BFSO51 0BGSO51 0BHSO51 0BJSO51 0BLSO51 0BNSO51 0BPSO51 0BQSO51 0BSSO51 0BUSO51 0BWSO51 0BXSO51 0BYSO51 0BZSO51 0DASO51 0DBSO51 0DDSO51 0DFSO51 0DGSO51 0DHSO51 0DJSO51 0DLSO51 0DNSO51 0DPSO51 0DQSO51 0DRSO51 0DTSO51 0DUSO51 0DWSO51 0DXSO51 0DYSO51 0DZSO51 0EASO51 0EBSO51 0EDSO51 0EESO51 0EFSO51 0EGSO51 0EHSO51 0EJSO51 0ELSO51 0ENSO51 0EPSO51 0EQSO51 0ERSO51 0ESSO51 0EZSO51 0GBSO51 0GDSO51 0GESO51 0GFSO51 0GGSO51 0GHSO51 0GJSO51 0GLSO51 0GNSO51 0GPSO51 0GQSO51 0GRSO51 0GSSO51 0GTSO51 0GUSO51 0GWSO51 0GXSO51 0GYSO51 0HASO51 0HBSO51 0HDSO51 0HESO51 0HFSO51 0HGSO51 0HHSO51 0HJSO51 0HLSO51 0HNSO51 0HPSO51 0HQSO51 0HRSO51 0HSSO51 0HTSO51 0JASO51 0JBSO51 0JDSO51 0JESO51 0JFSO51 0JGSO51 0JHSO51 0JJSO51 0JLSO51 0JNSO51 0JPSO51 0JQSO51 0JRSO51 0JSSO51 0JTSO51 0JUSO51 0JWSO51 0JXSO51 0JYSO51 0LASO51 0LBSO51 0LDSO51 0LESO51 0LFSO51 0LGSO51 0LHSO51 0LJSO51 0LLSO51 0LNSO51 0LPSO51 0LQSO51 0LRSO51 0LSSO51 0LTSO51 0LUSO51 0LWSO51 0LXSO51 0LYSO51 0LZSO51 0NASO51 0NBSO51 0NDSO51 0NESO51 0NFSO51 0NGSO51 0NHSO51 0NJSO51 0NLSO51 0NNSO51 0NPSO51 0NQSO51 0NRSO51 0NSSO51 0NTSO51 0NUSO51 0NWSO51 0NXSO51 0NYSO51 0NZSO51 0PASO51 0PBSO51 0PDSO51 0PESO51 0PFSO51 0PGSO51 0PHSO51 0PJSO51 0PLSO51 0PNSO51 0PPSO51 0PQSO51 0PRSO51 0PSSO51 0PTSO51 0PUSO51 0PWSO51 0PXSO51 0PYSO51 0QASO51 0QBSO51 0QDSO51 0QESO51 0QFSO51 0QGSO51 0QHSO51 0QJSO51 0QLSO51 0QNSO51 0QPSO51 0QRSO51 0QSSO51 0QTSO51 0QUSO51 0QWSO51 0RASO51 0RGSO51 0RJSO51 0SFSO51 0ZN

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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