BN25 1 postcode sector in the BN25 district

BN25 1 is a sector of the BN25 district: every postcode that starts BN25 1. It has 206 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 BN25 1 sector, and which are new since 2020

Map of every postcode in the BN25 1 sector, by new since 2020 Of the 206 postcodes in the BN25 1 sector that ONS places, 1 are new since 2020 and 205 were in use before 2020. Places named: Seaford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A259 BN25 1AA: before 2020BN25 1AB: before 2020BN25 1AD: before 2020BN25 1AE: before 2020BN25 1AF: before 2020BN25 1AG: before 2020BN25 1AH: before 2020BN25 1AJ: before 2020BN25 1AL: before 2020BN25 1AN: before 2020BN25 1AP: before 2020BN25 1AR: before 2020BN25 1AS: before 2020BN25 1AT: before 2020BN25 1AU: before 2020BN25 1AW: before 2020BN25 1AX: before 2020BN25 1AY: before 2020BN25 1AZ: before 2020BN25 1BA: before 2020BN25 1BB: before 2020BN25 1BD: before 2020BN25 1BE: before 2020BN25 1BG: before 2020BN25 1BH: before 2020BN25 1BJ: before 2020BN25 1BL: before 2020BN25 1BN: before 2020BN25 1BP: before 2020BN25 1BQ: before 2020BN25 1BU: before 2020BN25 1BW: before 2020BN25 1BX: before 2020BN25 1BY: before 2020BN25 1BZ: before 2020BN25 1DA: before 2020BN25 1DB: before 2020BN25 1DE: before 2020BN25 1DF: before 2020BN25 1DG: before 2020BN25 1DH: before 2020BN25 1DJ: before 2020BN25 1DL: before 2020BN25 1DN: before 2020BN25 1DP: before 2020BN25 1DR: before 2020BN25 1DS: before 2020BN25 1DT: before 2020BN25 1DU: before 2020BN25 1DW: before 2020BN25 1DY: before 2020BN25 1DZ: before 2020BN25 1EA: before 2020BN25 1EB: before 2020BN25 1ED: before 2020BN25 1EE: before 2020BN25 1EF: before 2020BN25 1EG: before 2020BN25 1EH: before 2020BN25 1EL: before 2020BN25 1EN: before 2020BN25 1EP: before 2020BN25 1ER: before 2020BN25 1ES: before 2020BN25 1ET: before 2020BN25 1EU: before 2020BN25 1EX: before 2020BN25 1EY: before 2020BN25 1FA: before 2020BN25 1FB: before 2020BN25 1FD: before 2020BN25 1FE: before 2020BN25 1FF: before 2020BN25 1FG: before 2020BN25 1GA: before 2020BN25 1HA: before 2020BN25 1HB: before 2020BN25 1HD: before 2020BN25 1HE: before 2020BN25 1HF: before 2020BN25 1HG: before 2020BN25 1HH: before 2020BN25 1HJ: before 2020BN25 1HL: before 2020BN25 1HP: before 2020BN25 1HR: before 2020BN25 1HS: before 2020BN25 1HT: before 2020BN25 1HU: before 2020BN25 1HW: before 2020BN25 1HY: before 2020BN25 1HZ: before 2020BN25 1JA: before 2020BN25 1JD: before 2020BN25 1JE: before 2020BN25 1JH: before 2020BN25 1JJ: before 2020BN25 1JL: before 2020BN25 1JN: before 2020BN25 1JP: before 2020BN25 1JR: before 2020BN25 1JS: before 2020BN25 1JT: before 2020BN25 1JW: before 2020BN25 1JX: before 2020BN25 1LA: before 2020BN25 1LB: before 2020BN25 1LD: before 2020BN25 1LG: before 2020BN25 1LH: before 2020BN25 1LL: before 2020BN25 1LN: before 2020BN25 1LR: before 2020BN25 1LS: before 2020BN25 1LT: before 2020BN25 1LW: before 2020BN25 1LX: before 2020BN25 1LY: before 2020BN25 1LZ: before 2020BN25 1ND: before 2020BN25 1NF: before 2020BN25 1NG: before 2020BN25 1NH: before 2020BN25 1NP: before 2020BN25 1NR: before 2020BN25 1NS: before 2020BN25 1NT: before 2020BN25 1PA: before 2020BN25 1PB: before 2020BN25 1PE: before 2020BN25 1PG: before 2020BN25 1PH: before 2020BN25 1PL: before 2020BN25 1PP: before 2020BN25 1PQ: before 2020BN25 1PR: before 2020BN25 1PS: before 2020BN25 1PT: before 2020BN25 1PU: before 2020BN25 1PW: before 2020BN25 1PX: before 2020BN25 1PY: before 2020BN25 1QA: before 2020BN25 1QB: before 2020BN25 1QD: before 2020BN25 1QE: before 2020BN25 1QF: before 2020BN25 1QG: before 2020BN25 1QH: before 2020BN25 1QJ: before 2020BN25 1QL: before 2020BN25 1QN: before 2020BN25 1QR: before 2020BN25 1QU: before 2020BN25 1QX: before 2020BN25 1RB: before 2020BN25 1RG: before 2020BN25 1RH: before 2020BN25 1RJ: before 2020BN25 1RL: before 2020BN25 1RN: before 2020BN25 1RP: before 2020BN25 1RR: before 2020BN25 1RS: before 2020BN25 1RU: before 2020BN25 1RX: before 2020BN25 1SA: before 2020BN25 1SB: before 2020BN25 1SD: before 2020BN25 1SE: before 2020BN25 1SG: before 2020BN25 1SH: before 2020BN25 1SJ: before 2020BN25 1SL: before 2020BN25 1SN: before 2020BN25 1SP: before 2020BN25 1SQ: before 2020BN25 1SR: before 2020BN25 1SS: before 2020BN25 1ST: before 2020BN25 1SU: before 2020BN25 1SW: before 2020BN25 1SX: before 2020BN25 1SY: before 2020BN25 1TA: before 2020BN25 1TH: before 2020BN25 1TJ: before 2020BN25 1TL: before 2020BN25 1TP: before 2020BN25 1TR: before 2020BN25 1TS: before 2020BN25 1TT: before 2020BN25 1TU: before 2020BN25 1UA: before 2020BN25 1UB: before 2020BN25 1UD: before 2020BN25 1UE: before 2020BN25 1UF: before 2020BN25 1UH: before 2020BN25 1UJ: before 2020BN25 1WE: before 2020BN25 1WF: before 2020BN25 1FH: new since 2020 Seaford Map of every postcode in the BN25 1 sector, by new since 2020 Of the 206 postcodes in the BN25 1 sector that ONS places, 1 are new since 2020 and 205 were in use before 2020. Places named: Seaford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A259 Seaford
  • New since 2020: 1
  • In use before 2020: 205

Of the 206 postcodes in the BN25 1 sector that ONS places, 1 are new since 2020 and 205 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 newest postcode

BN25 1FHJune 2023

What do homes sell for in BN25 1?

Homes in BN25 1 sold for a typical £302,500 in the 12 months to August 2026, across 70 sales, up 8% on the 12 months before, HM Land Registry's figures show.

£302,500 typical price, the 12 months to August 2026
£280,000 12 months to August 2025
▲ up 8% on the 12 months before
  • Detached £592,500 9 sales
  • Semi-detached £385,000 7 sales
  • Terraced £313,500 18 sales
  • Flat or maisonette £212,500 36 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 BN25 1. 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 BN25 1

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.

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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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