# BN21

Postcode district covering Eastbourne, Upperton and Downside, in Eastbourne.

BN21 is a postcode district covering Eastbourne, Upperton and Downside, in Eastbourne. Median sale price £230,000 in 2025.

Postcode district. Code BN21. In: [Postcodes](https://openindex.co.uk/postcode) › [BN](https://openindex.co.uk/postcode/bn)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an BN21 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £230,000** (2025). The median price paid for a home in BN21 was £230,000 in 2025. Joint 601st cheapest of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/bn21#f-house-sales-median-price
- **Population: 26,612** (2021). BN21 had 26,612 usual residents at the census (ONS Census 2021). 1,097th most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/bn21#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in BN21 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/bn21#f-radon-affected-share
- **Gigabit broadband coverage: 93.6%** (January 2026). In BN21, 93.6% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/bn21#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=BN21) (Worked out by Open Index · 2022): About 100% of people in BN21 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=BN21) (Worked out by Open Index · 2025): 494 homes were sold in BN21 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=BN21) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for BN21.
- [Population by postcode district](https://openindex.co.uk/map/population?place=BN21) (Census 2021, England and Wales): BN21 had 26,612 usual residents at the census.

## How BN21 compares

Each postcode district against every other postcode district the measure covers.

| Measure | BN21 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £230,000 | cheapest | 29 postcode districts, BN · 2025 |
| Population | 26,612 | 13th most populated | 33 postcode districts, BN · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 33 postcode districts, BN · 2022 |
| Gigabit broadband coverage | 93.6% | 11th highest | 33 postcode districts, BN · Jan 2026 |

## Is BN21 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in BN21 at a rate of 242.1 per 1,000 people.
That compares with 101.8 per 1,000 people across the BN postcode area.
In August 2026 alone, 667 cases of crime and anti-social behaviour were recorded in BN21.
In the 12 months to August 2026, the most common types were violence and sexual offences (2,019), anti-social behaviour (1,471) and shoplifting (1,200).
A year earlier, the recorded crime rate in BN21 was 232.8 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in BN21, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so BN21 has no single figure. Of its 15 neighbourhoods with a rank:
- Decile 1 (England’s most deprived 10%): 2 neighbourhoods
- Decile 3: 2 neighbourhoods
- Decile 4: 2 neighbourhoods
- Decile 5: 2 neighbourhoods
- Decile 6: 1 neighbourhood
- Decile 7: 2 neighbourhoods
- Decile 8: 1 neighbourhood
- Decile 9: 2 neighbourhoods
- Decile 10 (England’s least deprived 10%): 1 neighbourhood

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in BN21

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Eastbourne 004D](https://openindex.co.uk/eastbourne/neighbourhood/e01020945) | 1,826 | 59.7 per 1,000 | 9 | 95.1% |
| [Eastbourne 006A](https://openindex.co.uk/eastbourne/neighbourhood/e01020940) | 1,624 | 269.4 per 1,000 | 10 | 94.5% |
| [Eastbourne 008A](https://openindex.co.uk/eastbourne/neighbourhood/e01020948) | 1,434 | 395.0 per 1,000 | 8 | 96.6% |
| [Eastbourne 008B](https://openindex.co.uk/eastbourne/neighbourhood/e01020963) | 1,994 | 75.2 per 1,000 | 7 | 100.0% |
| [Eastbourne 008C](https://openindex.co.uk/eastbourne/neighbourhood/e01020965) | 1,817 | 99.9 per 1,000 | 5 | 99.8% |
| [Eastbourne 008D](https://openindex.co.uk/eastbourne/neighbourhood/e01020966) | 1,722 | 74.9 per 1,000 | 4 | 99.9% |
| [Eastbourne 009B](https://openindex.co.uk/eastbourne/neighbourhood/e01020939) | 1,572 | 41.4 per 1,000 | 9 | 99.9% |
| [Eastbourne 009C](https://openindex.co.uk/eastbourne/neighbourhood/e01020943) | 1,570 | 55.7 per 1,000 | 6 | 99.9% |
| [Eastbourne 009D](https://openindex.co.uk/eastbourne/neighbourhood/e01020964) | 1,595 | 116.1 per 1,000 | 7 | 98.5% |
| [Eastbourne 009E](https://openindex.co.uk/eastbourne/neighbourhood/e01020967) | 1,861 | 43.8 per 1,000 | 5 | 99.2% |
| [Eastbourne 010B](https://openindex.co.uk/eastbourne/neighbourhood/e01020911) | 2,337 | 529.3 per 1,000 | 1 | 90.8% |
| [Eastbourne 010C](https://openindex.co.uk/eastbourne/neighbourhood/e01020912) | 2,217 | 351.5 per 1,000 | 1 | 99.1% |
| [Eastbourne 011A](https://openindex.co.uk/eastbourne/neighbourhood/e01020935) | 2,087 | 711.9 per 1,000 | 3 | 82.3% |
| [Eastbourne 011B](https://openindex.co.uk/eastbourne/neighbourhood/e01020936) | 1,614 | 244.2 per 1,000 | 3 | 89.7% |
| [Eastbourne 011D](https://openindex.co.uk/eastbourne/neighbourhood/e01020968) | 1,951 | 220.4 per 1,000 | 4 | 98.3% |

## Your MP

- [Eastbourne](https://openindex.co.uk/constituency/eastbourne): Josh Babarinde (Liberal Democrat), MP since July 2024.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in BN21

[King Edward's Parade](https://openindex.co.uk/eastbourne/king-edwards-parade), [Old Town & Motcombe](https://openindex.co.uk/eastbourne/old-town-and-motcombe), [Pier](https://openindex.co.uk/eastbourne/pier), [Upperton](https://openindex.co.uk/eastbourne/upperton)

## Postcode sectors in BN21

[BN21 1 (227 postcodes)](https://openindex.co.uk/postcode/bn21-1), [BN21 2 (257 postcodes)](https://openindex.co.uk/postcode/bn21-2), [BN21 3 (212 postcodes)](https://openindex.co.uk/postcode/bn21-3), [BN21 4 (194 postcodes)](https://openindex.co.uk/postcode/bn21-4), [BN21 9 (42 postcodes)](https://openindex.co.uk/postcode/bn21-9)

## Council

[Eastbourne](https://openindex.co.uk/eastbourne)

## Towns in BN21

[Eastbourne](https://openindex.co.uk/eastbourne)

## Postcode districts next to BN21

[BN20](https://openindex.co.uk/postcode/bn20), [BN22](https://openindex.co.uk/postcode/bn22)

## Nearest rail stations

[Eastbourne (1.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.2813,50.7694), [Hampden Park (Sussex) (1.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.2794,50.7964), [Polegate (4.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.2451,50.8212), [Pevensey and Westham (5.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.3248,50.8158)

## More in the BN postcode area

[All BN postcode districts](https://openindex.co.uk/postcode/bn), [Every UK postcode area](https://openindex.co.uk/postcode)

## BN21 in brief

BN21 is a postcode district covering Eastbourne, Upperton and Downside, in Eastbourne.
About 28,251 people lived in BN21 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £230,000 in 2025 across 494 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 242.1 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in BN21 was £230,000 in 2025.
BN21 had 26,612 usual residents at the census.
About 100% of people in BN21 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In BN21, 93.6% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: BN21
- Postcode area: [BN](https://openindex.co.uk/postcode/bn)
- Constituency: [Eastbourne †](https://openindex.co.uk/constituency/eastbourne)
- Council: [Eastbourne †](https://openindex.co.uk/eastbourne)
- Area: 6.24 km²
- People, mid-2024: 28,251*
- Neighbourhoods: 15
- Output areas: 95

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[BN20](https://openindex.co.uk/postcode/bn20), [BN22](https://openindex.co.uk/postcode/bn22)

## Latest updates for BN21

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/BN21

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/bn21, or to one figure with its anchor, https://openindex.co.uk/postcode/bn21#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/bn21