BN21 1 postcode sector in the BN21 district
BN21 1 is a sector of the BN21 district: every postcode that starts BN21 1. It has 227 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 BN21 1 sector, and which are new since 2020
- New since 2020: 2
- In use before 2020: 225
Of the 227 postcodes in the BN21 1 sector that ONS places, 2 are new since 2020 and 225 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. Names in italics are council wards: we hold no town or village names here.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.
The 2 newest postcodes
What do homes sell for in BN21 1?
Homes in BN21 1 sold for a typical £282,500 in the 12 months to September 2026, across 96 sales, HM Land Registry's figures show. The 12 months before gave £295,000 from 143 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £540,000 10 sales
- Semi-detached £422,500 10 sales
- Terraced £335,000 25 sales
- Flat or maisonette £195,000 51 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 BN21 1. A typical price is the median, the middle sale, given from 5 sales or more.
How we work this out: house prices by postcodeSource: HM Land Registry Price Paid Data, files dated 28 October 2026.
Postcodes in BN21 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.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.
Other sectors in BN21
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- HM Land Registry Price Paid Data
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
Something wrong on this page? Report an error and we will check it against the source. All our sources