SS15 4 postcode sector in the SS15 district

SS15 4 is a sector of the SS15 district: every postcode that starts SS15 4. It has 111 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 SS15 4 sector, by flood risk

Map of every postcode in the SS15 4 sector, by flood risk Of the 111 postcodes in the SS15 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 7 are at low risk at worst and 102 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Burstead, Castledon & Crouch. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A127 SS15 4AA: not on the flood risk listSS15 4AB: not on the flood risk listSS15 4AD: not on the flood risk listSS15 4AE: not on the flood risk listSS15 4AF: not on the flood risk listSS15 4AG: not on the flood risk listSS15 4AH: not on the flood risk listSS15 4AL: not on the flood risk listSS15 4AN: not on the flood risk listSS15 4AP: not on the flood risk listSS15 4AQ: not on the flood risk listSS15 4AR: not on the flood risk listSS15 4AS: not on the flood risk listSS15 4AT: not on the flood risk listSS15 4AU: not on the flood risk listSS15 4AW: not on the flood risk listSS15 4AX: not on the flood risk listSS15 4AY: not on the flood risk listSS15 4BA: not on the flood risk listSS15 4BB: not on the flood risk listSS15 4BD: not on the flood risk listSS15 4BE: not on the flood risk listSS15 4BF: not on the flood risk listSS15 4BH: not on the flood risk listSS15 4BJ: not on the flood risk listSS15 4BL: not on the flood risk listSS15 4BP: not on the flood risk listSS15 4BS: not on the flood risk listSS15 4BT: not on the flood risk listSS15 4BW: not on the flood risk listSS15 4BX: not on the flood risk listSS15 4BY: not on the flood risk listSS15 4BZ: not on the flood risk listSS15 4DA: not on the flood risk listSS15 4DB: not on the flood risk listSS15 4DD: not on the flood risk listSS15 4DF: not on the flood risk listSS15 4DG: not on the flood risk listSS15 4DN: not on the flood risk listSS15 4DP: not on the flood risk listSS15 4DQ: not on the flood risk listSS15 4DR: not on the flood risk listSS15 4DS: not on the flood risk listSS15 4DT: not on the flood risk listSS15 4DU: not on the flood risk listSS15 4DW: not on the flood risk listSS15 4DX: not on the flood risk listSS15 4DY: not on the flood risk listSS15 4DZ: not on the flood risk listSS15 4EA: not on the flood risk listSS15 4EB: not on the flood risk listSS15 4ED: not on the flood risk listSS15 4EE: not on the flood risk listSS15 4EF: not on the flood risk listSS15 4EG: not on the flood risk listSS15 4EH: not on the flood risk listSS15 4EJ: not on the flood risk listSS15 4EL: not on the flood risk listSS15 4EN: not on the flood risk listSS15 4EP: not on the flood risk listSS15 4EQ: not on the flood risk listSS15 4ER: not on the flood risk listSS15 4ES: not on the flood risk listSS15 4ET: not on the flood risk listSS15 4EU: not on the flood risk listSS15 4EW: not on the flood risk listSS15 4EX: not on the flood risk listSS15 4EY: not on the flood risk listSS15 4EZ: not on the flood risk listSS15 4FG: not on the flood risk listSS15 4FH: not on the flood risk listSS15 4FJ: not on the flood risk listSS15 4FP: not on the flood risk listSS15 4FQ: not on the flood risk listSS15 4FR: not on the flood risk listSS15 4HA: not on the flood risk listSS15 4HB: not on the flood risk listSS15 4HD: not on the flood risk listSS15 4HE: not on the flood risk listSS15 4HF: not on the flood risk listSS15 4HJ: not on the flood risk listSS15 4HL: not on the flood risk listSS15 4HN: not on the flood risk listSS15 4HP: not on the flood risk listSS15 4HS: not on the flood risk listSS15 4HT: not on the flood risk listSS15 4HU: not on the flood risk listSS15 4HX: not on the flood risk listSS15 4HY: not on the flood risk listSS15 4HZ: not on the flood risk listSS15 4JB: not on the flood risk listSS15 4JD: not on the flood risk listSS15 4JE: not on the flood risk listSS15 4JF: not on the flood risk listSS15 4JG: not on the flood risk listSS15 4JP: not on the flood risk listSS15 4JR: not on the flood risk listSS15 4JS: not on the flood risk listSS15 4JT: not on the flood risk listSS15 4JU: not on the flood risk listSS15 4JZ: not on the flood risk listSS15 4LE: not on the flood risk listSS15 4AJ: low flood risk at worstSS15 4BU: low flood risk at worstSS15 4DH: low flood risk at worstSS15 4DJ: low flood risk at worstSS15 4FA: low flood risk at worstSS15 4FL: low flood risk at worstSS15 4DE: medium flood risk at worstSS15 4AZ: high flood risk BursteadCastledon & Crouch Map of every postcode in the SS15 4 sector, by flood risk Of the 111 postcodes in the SS15 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 7 are at low risk at worst and 102 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Burstead, Castledon & Crouch. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. BursteadCastledon & Crouch
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 7
  • At very low risk only: 0
  • Not on the at-risk list: 102

Of the 111 postcodes in the SS15 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 7 are at low risk at worst and 102 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.

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.

What do homes sell for in SS15 4?

Homes in SS15 4 sold for a typical £355,000 in the 12 months to August 2026, across 75 sales, down 9% on the 12 months before, HM Land Registry's figures show.

£355,000 typical price, the 12 months to August 2026
£390,000 12 months to August 2025
▼ down 9% on the 12 months before
  • Detached £514,000 16 sales
  • Semi-detached £390,000 16 sales
  • Terraced £330,000 31 sales
  • Flat or maisonette £203,750 12 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 SS15 4. 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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