SO41 3 postcode sector in the SO41 district

SO41 3 is a sector of the SO41 district: every postcode that starts SO41 3. It has 123 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 SO41 3 sector, by flood risk

Map of every postcode in the SO41 3 sector, by flood risk Of the 123 postcodes in the SO41 3 sector that ONS places, 14 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst, 13 are at very low risk only and 83 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Lymington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SO41 3AA: not on the flood risk listSO41 3AB: not on the flood risk listSO41 3AD: not on the flood risk listSO41 3AE: not on the flood risk listSO41 3AF: not on the flood risk listSO41 3AG: not on the flood risk listSO41 3AH: not on the flood risk listSO41 3FQ: not on the flood risk listSO41 3NA: not on the flood risk listSO41 3ND: not on the flood risk listSO41 3NE: not on the flood risk listSO41 3NF: not on the flood risk listSO41 3NG: not on the flood risk listSO41 3NH: not on the flood risk listSO41 3NJ: not on the flood risk listSO41 3NL: not on the flood risk listSO41 3NN: not on the flood risk listSO41 3NP: not on the flood risk listSO41 3NQ: not on the flood risk listSO41 3NR: not on the flood risk listSO41 3NS: not on the flood risk listSO41 3NT: not on the flood risk listSO41 3NU: not on the flood risk listSO41 3NX: not on the flood risk listSO41 3PA: not on the flood risk listSO41 3PB: not on the flood risk listSO41 3PD: not on the flood risk listSO41 3PE: not on the flood risk listSO41 3PF: not on the flood risk listSO41 3PG: not on the flood risk listSO41 3PJ: not on the flood risk listSO41 3PL: not on the flood risk listSO41 3PN: not on the flood risk listSO41 3PP: not on the flood risk listSO41 3PQ: not on the flood risk listSO41 3PR: not on the flood risk listSO41 3PT: not on the flood risk listSO41 3PU: not on the flood risk listSO41 3PY: not on the flood risk listSO41 3PZ: not on the flood risk listSO41 3QA: not on the flood risk listSO41 3QB: not on the flood risk listSO41 3QN: not on the flood risk listSO41 3QP: not on the flood risk listSO41 3QQ: not on the flood risk listSO41 3QS: not on the flood risk listSO41 3QT: not on the flood risk listSO41 3QU: not on the flood risk listSO41 3QW: not on the flood risk listSO41 3QX: not on the flood risk listSO41 3QZ: not on the flood risk listSO41 3RA: not on the flood risk listSO41 3RB: not on the flood risk listSO41 3RD: not on the flood risk listSO41 3RE: not on the flood risk listSO41 3RF: not on the flood risk listSO41 3RG: not on the flood risk listSO41 3RH: not on the flood risk listSO41 3RJ: not on the flood risk listSO41 3RL: not on the flood risk listSO41 3RN: not on the flood risk listSO41 3RT: not on the flood risk listSO41 3RX: not on the flood risk listSO41 3RY: not on the flood risk listSO41 3RZ: not on the flood risk listSO41 3SA: not on the flood risk listSO41 3SB: not on the flood risk listSO41 3SH: not on the flood risk listSO41 3SJ: not on the flood risk listSO41 3SP: not on the flood risk listSO41 3SQ: not on the flood risk listSO41 3SS: not on the flood risk listSO41 3ST: not on the flood risk listSO41 3SU: not on the flood risk listSO41 3SW: not on the flood risk listSO41 3TA: not on the flood risk listSO41 3TB: not on the flood risk listSO41 3TD: not on the flood risk listSO41 3TE: not on the flood risk listSO41 3TF: not on the flood risk listSO41 3TG: not on the flood risk listSO41 3TH: not on the flood risk listSO41 3TP: not on the flood risk listSO41 3AR: very low flood risk onlySO41 3AU: very low flood risk onlySO41 3AW: very low flood risk onlySO41 3AX: very low flood risk onlySO41 3ET: very low flood risk onlySO41 3PS: very low flood risk onlySO41 3PW: very low flood risk onlySO41 3PX: very low flood risk onlySO41 3QH: very low flood risk onlySO41 3QJ: very low flood risk onlySO41 3QL: very low flood risk onlySO41 3QR: very low flood risk onlySO41 3SR: very low flood risk onlySO41 3BA: low flood risk at worstSO41 3NW: low flood risk at worstSO41 3NZ: low flood risk at worstSO41 3PH: low flood risk at worstSO41 3QY: low flood risk at worstSO41 3RU: low flood risk at worstSO41 3SD: low flood risk at worstSO41 3SG: low flood risk at worstSO41 3SL: low flood risk at worstSO41 3SN: low flood risk at worstSO41 3TJ: low flood risk at worstSO41 3NY: medium flood risk at worstSO41 3TL: medium flood risk at worstSO41 3AS: high flood riskSO41 3AT: high flood riskSO41 3AY: high flood riskSO41 3NB: high flood riskSO41 3QD: high flood riskSO41 3QE: high flood riskSO41 3QF: high flood riskSO41 3QG: high flood riskSO41 3RW: high flood riskSO41 3SE: high flood riskSO41 3SF: high flood riskSO41 3TQ: high flood riskSO41 3YJ: high flood riskSO41 3YL: high flood risk Lymington 6 postcodes at high or medium risk, outlined: this goes to SO41 3RW, the one with most homes and businesses at high risk6 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to SO41 3SE, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the SO41 3 sector, by flood risk Of the 123 postcodes in the SO41 3 sector that ONS places, 14 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst, 13 are at very low risk only and 83 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Lymington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Lymington
  • A home or business at high risk: 14
  • At medium risk at worst: 2
  • At low risk at worst: 11
  • At very low risk only: 13
  • Not on the at-risk list: 83
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 123 postcodes in the SO41 3 sector that ONS places, 14 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst, 13 are at very low risk only and 83 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.

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

14 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.

Where the postcodes at high or medium risk lie together

What do homes sell for in SO41 3?

Homes in SO41 3 sold for a typical £800,000 in the 12 months to August 2026, across 47 sales, up 14.1% on the 12 months before, HM Land Registry's figures show.

£800,000 typical price, the 12 months to August 2026
£701,250 12 months to August 2025
▲ up 14.1% on the 12 months before
  • Detached £875,000 28 sales
  • Semi-detached £787,500 6 sales
  • Terraced £588,500 8 sales
  • Flat or maisonette £385,000 5 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 SO41 3. 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

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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