SO51 5 postcode sector in the SO51 district

SO51 5 is a sector of the SO51 district: every postcode that starts SO51 5. It has 109 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SO51 5 sector, by flood risk

Map of every postcode in the SO51 5 sector, by flood risk Of the 109 postcodes in the SO51 5 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 90 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 11 postcodes at high or medium risk. Places named: Romsey Tadburn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3090 SO51 5AB: not on the flood risk listSO51 5AD: not on the flood risk listSO51 5AE: not on the flood risk listSO51 5AF: not on the flood risk listSO51 5AW: not on the flood risk listSO51 5AX: not on the flood risk listSO51 5AY: not on the flood risk listSO51 5BB: not on the flood risk listSO51 5BE: not on the flood risk listSO51 5BF: not on the flood risk listSO51 5BG: not on the flood risk listSO51 5BH: not on the flood risk listSO51 5BJ: not on the flood risk listSO51 5BL: not on the flood risk listSO51 5EH: not on the flood risk listSO51 5FY: not on the flood risk listSO51 5FZ: not on the flood risk listSO51 5GX: not on the flood risk listSO51 5HS: not on the flood risk listSO51 5HW: not on the flood risk listSO51 5HZ: not on the flood risk listSO51 5PF: not on the flood risk listSO51 5PG: not on the flood risk listSO51 5PH: not on the flood risk listSO51 5PL: not on the flood risk listSO51 5PP: not on the flood risk listSO51 5PQ: not on the flood risk listSO51 5PR: not on the flood risk listSO51 5PS: not on the flood risk listSO51 5PT: not on the flood risk listSO51 5PU: not on the flood risk listSO51 5PW: not on the flood risk listSO51 5PX: not on the flood risk listSO51 5PY: not on the flood risk listSO51 5PZ: not on the flood risk listSO51 5QA: not on the flood risk listSO51 5QB: not on the flood risk listSO51 5QD: not on the flood risk listSO51 5QF: not on the flood risk listSO51 5QG: not on the flood risk listSO51 5QP: not on the flood risk listSO51 5QR: not on the flood risk listSO51 5QW: not on the flood risk listSO51 5QX: not on the flood risk listSO51 5QY: not on the flood risk listSO51 5QZ: not on the flood risk listSO51 5RA: not on the flood risk listSO51 5RB: not on the flood risk listSO51 5RD: not on the flood risk listSO51 5RE: not on the flood risk listSO51 5RF: not on the flood risk listSO51 5RG: not on the flood risk listSO51 5RH: not on the flood risk listSO51 5RJ: not on the flood risk listSO51 5RL: not on the flood risk listSO51 5RN: not on the flood risk listSO51 5RP: not on the flood risk listSO51 5RQ: not on the flood risk listSO51 5RR: not on the flood risk listSO51 5RS: not on the flood risk listSO51 5RT: not on the flood risk listSO51 5RU: not on the flood risk listSO51 5RW: not on the flood risk listSO51 5RX: not on the flood risk listSO51 5RY: not on the flood risk listSO51 5RZ: not on the flood risk listSO51 5SA: not on the flood risk listSO51 5SB: not on the flood risk listSO51 5SD: not on the flood risk listSO51 5SE: not on the flood risk listSO51 5SF: not on the flood risk listSO51 5SG: not on the flood risk listSO51 5SH: not on the flood risk listSO51 5SJ: not on the flood risk listSO51 5SL: not on the flood risk listSO51 5SN: not on the flood risk listSO51 5SP: not on the flood risk listSO51 5SQ: not on the flood risk listSO51 5SR: not on the flood risk listSO51 5SS: not on the flood risk listSO51 5ST: not on the flood risk listSO51 5SU: not on the flood risk listSO51 5SW: not on the flood risk listSO51 5SX: not on the flood risk listSO51 5SY: not on the flood risk listSO51 5SZ: not on the flood risk listSO51 5UU: not on the flood risk listSO51 5UW: not on the flood risk listSO51 5UX: not on the flood risk listSO51 5UY: not on the flood risk listSO51 5AJ: low flood risk at worstSO51 5AU: low flood risk at worstSO51 5BA: low flood risk at worstSO51 5BD: low flood risk at worstSO51 5TA: low flood risk at worstSO51 5UZ: low flood risk at worstSO51 5AL: medium flood risk at worstSO51 5AN: medium flood risk at worstSO51 5AG: high flood riskSO51 5AH: high flood riskSO51 5AP: high flood riskSO51 5AR: high flood riskSO51 5AS: high flood riskSO51 5AT: high flood riskSO51 5AZ: high flood riskSO51 5BN: high flood riskSO51 5BP: high flood riskSO51 5BQ: high flood riskSO51 5EG: high flood risk Romsey Tadburn 11 postcodes at high or medium risk, outlined: this goes to SO51 5AP, the one with most homes and businesses at high risk11 postcodes at high or medium risk Map of every postcode in the SO51 5 sector, by flood risk Of the 109 postcodes in the SO51 5 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 90 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 11 postcodes at high or medium risk. Places named: Romsey Tadburn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Romsey Tadburn
  • A home or business at high risk: 11
  • At medium risk at worst: 2
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 90
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 109 postcodes in the SO51 5 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 90 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. 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.

SO51 5BQ20 at high riskSO51 5AP11 at high riskSO51 5BP9 at high riskSO51 5EG9 at high riskSO51 5AH6 at high riskSO51 5AR5 at high riskSO51 5AS4 at high riskSO51 5AG3 at high riskSO51 5AT2 at high riskSO51 5AZ1 at high riskSO51 5BN1 at high risk

Where the postcodes at high or medium risk lie together

  • 11 postcodes at high or medium risk, outlined on the map. SO51 5AP, is the one with most homes and businesses at high risk.

What do homes sell for in SO51 5?

Homes in SO51 5 sold for a typical £372,500 in the 12 months to August 2026, across 54 sales, down 1.5% on the 12 months before, HM Land Registry's figures show.

£372,500 typical price, the 12 months to August 2026
£378,000 12 months to August 2025
▼ down 1.5% on the 12 months before
  • Detached £540,000 8 sales
  • Semi-detached £385,000 31 sales
  • Terraced £310,000 5 sales
  • Flat or maisonette £260,000 10 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 5. 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 5

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 5ABSO51 5ADSO51 5AESO51 5AFSO51 5AGSO51 5AHSO51 5AJSO51 5ALSO51 5ANSO51 5APSO51 5ARSO51 5ASSO51 5ATSO51 5AUSO51 5AWSO51 5AXSO51 5AYSO51 5AZSO51 5BASO51 5BBSO51 5BDSO51 5BESO51 5BFSO51 5BGSO51 5BHSO51 5BJSO51 5BLSO51 5BNSO51 5BPSO51 5BQSO51 5EGSO51 5EHSO51 5FYSO51 5FZSO51 5GXSO51 5HSSO51 5HWSO51 5HZSO51 5PFSO51 5PGSO51 5PHSO51 5PLSO51 5PPSO51 5PQSO51 5PRSO51 5PSSO51 5PTSO51 5PUSO51 5PWSO51 5PXSO51 5PYSO51 5PZSO51 5QASO51 5QBSO51 5QDSO51 5QFSO51 5QGSO51 5QPSO51 5QRSO51 5QWSO51 5QXSO51 5QYSO51 5QZSO51 5RASO51 5RBSO51 5RDSO51 5RESO51 5RFSO51 5RGSO51 5RHSO51 5RJSO51 5RLSO51 5RNSO51 5RPSO51 5RQSO51 5RRSO51 5RSSO51 5RTSO51 5RUSO51 5RWSO51 5RXSO51 5RYSO51 5RZSO51 5SASO51 5SBSO51 5SDSO51 5SESO51 5SFSO51 5SGSO51 5SHSO51 5SJSO51 5SLSO51 5SNSO51 5SPSO51 5SQSO51 5SRSO51 5SSSO51 5STSO51 5SUSO51 5SWSO51 5SXSO51 5SYSO51 5SZSO51 5TASO51 5UUSO51 5UWSO51 5UXSO51 5UYSO51 5UZ

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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