SN25 4 postcode sector in the SN25 district

SN25 4 is a sector of the SN25 district: every postcode that starts SN25 4. It has 162 postcodes in use, 3 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 SN25 4 sector, by flood risk

Map of every postcode in the SN25 4 sector, by flood risk Of the 162 postcodes in the SN25 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 3 are at low risk at worst and 157 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: St Andrews East, Haydon Wick. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A419A4198A4311 SN25 4AA: not on the flood risk listSN25 4AB: not on the flood risk listSN25 4AD: not on the flood risk listSN25 4AE: not on the flood risk listSN25 4AF: not on the flood risk listSN25 4AG: not on the flood risk listSN25 4AH: not on the flood risk listSN25 4AN: not on the flood risk listSN25 4AS: not on the flood risk listSN25 4AT: not on the flood risk listSN25 4AU: not on the flood risk listSN25 4BG: not on the flood risk listSN25 4BQ: not on the flood risk listSN25 4DL: not on the flood risk listSN25 4DN: not on the flood risk listSN25 4DP: not on the flood risk listSN25 4DQ: not on the flood risk listSN25 4DR: not on the flood risk listSN25 4DS: not on the flood risk listSN25 4DT: not on the flood risk listSN25 4DU: not on the flood risk listSN25 4DW: not on the flood risk listSN25 4DY: not on the flood risk listSN25 4DZ: not on the flood risk listSN25 4EA: not on the flood risk listSN25 4EB: not on the flood risk listSN25 4ED: not on the flood risk listSN25 4EE: not on the flood risk listSN25 4EF: not on the flood risk listSN25 4EG: not on the flood risk listSN25 4EH: not on the flood risk listSN25 4EJ: not on the flood risk listSN25 4EL: not on the flood risk listSN25 4EN: not on the flood risk listSN25 4EP: not on the flood risk listSN25 4EQ: not on the flood risk listSN25 4ER: not on the flood risk listSN25 4ES: not on the flood risk listSN25 4FA: not on the flood risk listSN25 4FB: not on the flood risk listSN25 4FD: not on the flood risk listSN25 4FJ: not on the flood risk listSN25 4FL: not on the flood risk listSN25 4FP: not on the flood risk listSN25 4FR: not on the flood risk listSN25 4FW: not on the flood risk listSN25 4FX: not on the flood risk listSN25 4FY: not on the flood risk listSN25 4FZ: not on the flood risk listSN25 4GA: not on the flood risk listSN25 4GB: not on the flood risk listSN25 4GD: not on the flood risk listSN25 4GE: not on the flood risk listSN25 4GF: not on the flood risk listSN25 4GG: not on the flood risk listSN25 4GH: not on the flood risk listSN25 4GJ: not on the flood risk listSN25 4GL: not on the flood risk listSN25 4GN: not on the flood risk listSN25 4GP: not on the flood risk listSN25 4GQ: not on the flood risk listSN25 4GR: not on the flood risk listSN25 4GS: not on the flood risk listSN25 4GT: not on the flood risk listSN25 4GU: not on the flood risk listSN25 4GW: not on the flood risk listSN25 4GX: not on the flood risk listSN25 4GY: not on the flood risk listSN25 4GZ: not on the flood risk listSN25 4TA: not on the flood risk listSN25 4TG: not on the flood risk listSN25 4TL: not on the flood risk listSN25 4TN: not on the flood risk listSN25 4TP: not on the flood risk listSN25 4TR: not on the flood risk listSN25 4TS: not on the flood risk listSN25 4TU: not on the flood risk listSN25 4TW: not on the flood risk listSN25 4TX: not on the flood risk listSN25 4TY: not on the flood risk listSN25 4TZ: not on the flood risk listSN25 4UA: not on the flood risk listSN25 4UB: not on the flood risk listSN25 4UD: not on the flood risk listSN25 4UE: not on the flood risk listSN25 4UF: not on the flood risk listSN25 4UG: not on the flood risk listSN25 4UL: not on the flood risk listSN25 4UQ: not on the flood risk listSN25 4WA: not on the flood risk listSN25 4WB: not on the flood risk listSN25 4WD: not on the flood risk listSN25 4WE: not on the flood risk listSN25 4WF: not on the flood risk listSN25 4WG: not on the flood risk listSN25 4WH: not on the flood risk listSN25 4WJ: not on the flood risk listSN25 4WL: not on the flood risk listSN25 4WN: not on the flood risk listSN25 4WP: not on the flood risk listSN25 4WQ: not on the flood risk listSN25 4WR: not on the flood risk listSN25 4WS: not on the flood risk listSN25 4WT: not on the flood risk listSN25 4WU: not on the flood risk listSN25 4WX: not on the flood risk listSN25 4XA: not on the flood risk listSN25 4XB: not on the flood risk listSN25 4XD: not on the flood risk listSN25 4XE: not on the flood risk listSN25 4XF: not on the flood risk listSN25 4XG: not on the flood risk listSN25 4XH: not on the flood risk listSN25 4XJ: not on the flood risk listSN25 4XL: not on the flood risk listSN25 4XN: not on the flood risk listSN25 4XP: not on the flood risk listSN25 4XQ: not on the flood risk listSN25 4XR: not on the flood risk listSN25 4XS: not on the flood risk listSN25 4XT: not on the flood risk listSN25 4XU: not on the flood risk listSN25 4XW: not on the flood risk listSN25 4XX: not on the flood risk listSN25 4XY: not on the flood risk listSN25 4YA: not on the flood risk listSN25 4YB: not on the flood risk listSN25 4YD: not on the flood risk listSN25 4YE: not on the flood risk listSN25 4YF: not on the flood risk listSN25 4YG: not on the flood risk listSN25 4YH: not on the flood risk listSN25 4YJ: not on the flood risk listSN25 4YL: not on the flood risk listSN25 4YN: not on the flood risk listSN25 4YP: not on the flood risk listSN25 4YQ: not on the flood risk listSN25 4YR: not on the flood risk listSN25 4YS: not on the flood risk listSN25 4YT: not on the flood risk listSN25 4YU: not on the flood risk listSN25 4YW: not on the flood risk listSN25 4YX: not on the flood risk listSN25 4YZ: not on the flood risk listSN25 4ZA: not on the flood risk listSN25 4ZB: not on the flood risk listSN25 4ZD: not on the flood risk listSN25 4ZF: not on the flood risk listSN25 4ZG: not on the flood risk listSN25 4ZH: not on the flood risk listSN25 4ZJ: not on the flood risk listSN25 4ZN: not on the flood risk listSN25 4ZP: not on the flood risk listSN25 4ZQ: not on the flood risk listSN25 4ZR: not on the flood risk listSN25 4ZW: not on the flood risk listSN25 4FN: low flood risk at worstSN25 4TQ: low flood risk at worstSN25 4UJ: low flood risk at worstSN25 4TT: medium flood risk at worstSN25 4TJ: high flood risk St Andrews EastHaydon Wick Map of every postcode in the SN25 4 sector, by flood risk Of the 162 postcodes in the SN25 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 3 are at low risk at worst and 157 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: St Andrews East, Haydon Wick. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A419 St Andrews EastHaydon Wick
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 3
  • At very low risk only: 0
  • Not on the at-risk list: 157

Of the 162 postcodes in the SN25 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 3 are at low risk at worst and 157 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 SN25 4?

Homes in SN25 4 sold for a typical £325,000 in the 12 months to August 2026, across 126 sales, down 1.2% on the 12 months before, HM Land Registry's figures show.

£325,000 typical price, the 12 months to August 2026
£328,875 12 months to August 2025
▼ down 1.2% on the 12 months before
  • Detached £395,000 49 sales
  • Semi-detached £313,500 34 sales
  • Terraced £258,000 38 sales
  • Flat or maisonette £188,500 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 SN25 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

Postcodes in SN25 4

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.

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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