SO45 6 postcode sector in the SO45 district

SO45 6 is a sector of the SO45 district: every postcode that starts SO45 6. It has 125 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 SO45 6 sector, by flood risk

Map of every postcode in the SO45 6 sector, by flood risk Of the 125 postcodes in the SO45 6 sector that ONS places, 13 have a home or business at high risk, 6 are at medium risk at worst, 16 are at low risk at worst, 10 are at very low risk only and 80 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Hythe and Dibden Purlieu. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SO45 6AA: not on the flood risk listSO45 6AB: not on the flood risk listSO45 6AD: not on the flood risk listSO45 6AF: not on the flood risk listSO45 6AS: not on the flood risk listSO45 6AW: not on the flood risk listSO45 6AX: not on the flood risk listSO45 6AY: not on the flood risk listSO45 6AZ: not on the flood risk listSO45 6BD: not on the flood risk listSO45 6BE: not on the flood risk listSO45 6BG: not on the flood risk listSO45 6BH: not on the flood risk listSO45 6BL: not on the flood risk listSO45 6BN: not on the flood risk listSO45 6BR: not on the flood risk listSO45 6BS: not on the flood risk listSO45 6BT: not on the flood risk listSO45 6BY: not on the flood risk listSO45 6DG: not on the flood risk listSO45 6DH: not on the flood risk listSO45 6DL: not on the flood risk listSO45 6DN: not on the flood risk listSO45 6DP: not on the flood risk listSO45 6DR: not on the flood risk listSO45 6DU: not on the flood risk listSO45 6EB: not on the flood risk listSO45 6ED: not on the flood risk listSO45 6EE: not on the flood risk listSO45 6EG: not on the flood risk listSO45 6EH: not on the flood risk listSO45 6EJ: not on the flood risk listSO45 6EL: not on the flood risk listSO45 6EN: not on the flood risk listSO45 6EP: not on the flood risk listSO45 6EQ: not on the flood risk listSO45 6ER: not on the flood risk listSO45 6ES: not on the flood risk listSO45 6ET: not on the flood risk listSO45 6EU: not on the flood risk listSO45 6EW: not on the flood risk listSO45 6EX: not on the flood risk listSO45 6EY: not on the flood risk listSO45 6EZ: not on the flood risk listSO45 6FB: not on the flood risk listSO45 6FE: not on the flood risk listSO45 6FF: not on the flood risk listSO45 6FH: not on the flood risk listSO45 6FJ: not on the flood risk listSO45 6FL: not on the flood risk listSO45 6FN: not on the flood risk listSO45 6FP: not on the flood risk listSO45 6FR: not on the flood risk listSO45 6FW: not on the flood risk listSO45 6GH: not on the flood risk listSO45 6GL: not on the flood risk listSO45 6GN: not on the flood risk listSO45 6GP: not on the flood risk listSO45 6GQ: not on the flood risk listSO45 6GR: not on the flood risk listSO45 6GS: not on the flood risk listSO45 6JA: not on the flood risk listSO45 6JB: not on the flood risk listSO45 6JE: not on the flood risk listSO45 6JF: not on the flood risk listSO45 6JG: not on the flood risk listSO45 6JH: not on the flood risk listSO45 6JJ: not on the flood risk listSO45 6JL: not on the flood risk listSO45 6JN: not on the flood risk listSO45 6JP: not on the flood risk listSO45 6JQ: not on the flood risk listSO45 6JS: not on the flood risk listSO45 6JT: not on the flood risk listSO45 6JX: not on the flood risk listSO45 6PA: not on the flood risk listSO45 6QA: not on the flood risk listSO45 6WF: not on the flood risk listSO45 6WG: not on the flood risk listSO45 6AE: very low flood risk onlySO45 6BJ: very low flood risk onlySO45 6DT: very low flood risk onlySO45 6DX: very low flood risk onlySO45 6DZ: very low flood risk onlySO45 6HA: very low flood risk onlySO45 6HB: very low flood risk onlySO45 6JD: very low flood risk onlySO45 6JR: very low flood risk onlySO45 6LA: very low flood risk onlySO45 6AG: low flood risk at worstSO45 6AL: low flood risk at worstSO45 6AP: low flood risk at worstSO45 6AQ: low flood risk at worstSO45 6BB: low flood risk at worstSO45 6BP: low flood risk at worstSO45 6BZ: low flood risk at worstSO45 6DA: low flood risk at worstSO45 6EA: low flood risk at worstSO45 6HD: low flood risk at worstSO45 6JU: low flood risk at worstSO45 6JW: low flood risk at worstSO45 6JY: low flood risk at worstSO45 6RU: low flood risk at worstSO45 6YW: low flood risk at worstSO45 6ZL: low flood risk at worstSO45 6AH: medium flood risk at worstSO45 6AJ: medium flood risk at worstSO45 6AN: medium flood risk at worstSO45 6AR: medium flood risk at worstSO45 6FD: medium flood risk at worstSO45 6ZB: medium flood risk at worstSO45 6AT: high flood riskSO45 6AU: high flood riskSO45 6BA: high flood riskSO45 6BQ: high flood riskSO45 6DB: high flood riskSO45 6DD: high flood riskSO45 6DF: high flood riskSO45 6DS: high flood riskSO45 6DW: high flood riskSO45 6DY: high flood riskSO45 6GJ: high flood riskSO45 6HE: high flood riskSO45 6JZ: high flood risk Hythe and Dibden Purlieu 8 postcodes at high or medium risk, outlined: this goes to SO45 6AU, the one with most homes and businesses at high risk8 postcodes at high or medium risk Map of every postcode in the SO45 6 sector, by flood risk Of the 125 postcodes in the SO45 6 sector that ONS places, 13 have a home or business at high risk, 6 are at medium risk at worst, 16 are at low risk at worst, 10 are at very low risk only and 80 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Hythe and Dibden Purlieu. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Hythe and Dibden Purlieu 8 postcodes at high or medium risk, outlined: this goes to SO45 6AU, the one with most homes and businesses at high risk8 postcodes at high or medium risk
  • A home or business at high risk: 13
  • At medium risk at worst: 6
  • At low risk at worst: 16
  • At very low risk only: 10
  • Not on the at-risk list: 80
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 125 postcodes in the SO45 6 sector that ONS places, 13 have a home or business at high risk, 6 are at medium risk at worst, 16 are at low risk at worst, 10 are at very low risk only and 80 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. 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

13 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.

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

Where the postcodes at high or medium risk lie together

What do homes sell for in SO45 6?

Homes in SO45 6 sold for a typical £281,000 in the 12 months to August 2026, across 43 sales, down 6.3% on the 12 months before, HM Land Registry's figures show.

£281,000 typical price, the 12 months to August 2026
£300,000 12 months to August 2025
▼ down 6.3% on the 12 months before
  • Detached £595,000 6 sales
  • Semi-detached £367,000 9 sales
  • Terraced £360,000 9 sales
  • Flat or maisonette £195,000 19 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 SO45 6. 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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