# SE3

Postcode district covering Kidbrooke and Blackheath Park, in Greenwich and Lewisham.

SE3 is a postcode district covering Kidbrooke and Blackheath Park, in Greenwich and Lewisham. Median sale price £540,000 in 2025.

Postcode district. Code SE3. In: [Postcodes](https://openindex.co.uk/postcode) › [SE](https://openindex.co.uk/postcode/se)

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 SE3 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £540,000** (2025). The median price paid for a home in SE3 was £540,000 in 2025. Joint 215th most expensive 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/se3#f-house-sales-median-price
- **Population: 35,473** (2021). SE3 had 35,473 usual residents at the census (ONS Census 2021). 632nd 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/se3#f-population
- **People in radon Affected Area squares: 28%** (2022). About 28% of people in SE3 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/se3#f-radon-affected-share
- **Gigabit broadband coverage: 79.8%** (January 2026). In SE3, 79.8% 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/se3#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SE3) (Worked out by Open Index · 2022): About 28% of people in SE3 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=SE3) (Worked out by Open Index · 2025): 529 homes were sold in SE3 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SE3) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SE3.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SE3) (Census 2021, England and Wales): SE3 had 35,473 usual residents at the census.

## How SE3 compares

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

| Measure | SE3 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £540,000 | 8th most expensive | 28 postcode districts, SE · 2025 |
| Population | 35,473 | 12th most populated | 29 postcode districts, SE · 2021 |
| People in radon Affected Area squares | 28% | 14th most people in radon Affected Areas | 29 postcode districts, SE · 2022 |
| Gigabit broadband coverage | 79.8% | 3rd lowest | 29 postcode districts, SE · Jan 2026 |

## Is SE3 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SE3 at a rate of 90.9 per 1,000 people.
That compares with 133.0 per 1,000 people across the SE postcode area.
In August 2026 alone, 313 cases of crime and anti-social behaviour were recorded in SE3.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,072), anti-social behaviour (612) and other crime (549).
A year earlier, the recorded crime rate in SE3 was 91.1 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 SE3, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SE3 has no single figure. Of its 23 neighbourhoods with a rank:
- Decile 3: 1 neighbourhood
- Decile 4: 4 neighbourhoods
- Decile 5: 4 neighbourhoods
- Decile 6: 3 neighbourhoods
- Decile 7: 6 neighbourhoods
- Decile 8: 5 neighbourhoods

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

## Neighbourhoods in SE3

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Greenwich 014C](https://openindex.co.uk/greenwich/neighbourhood/e01001593) | 1,793 | 63.2 per 1,000 | 8 | 95.0% |
| [Greenwich 016A](https://openindex.co.uk/greenwich/neighbourhood/e01001581) | 1,578 | 75.3 per 1,000 | 4 | 78.6% |
| [Greenwich 016B](https://openindex.co.uk/greenwich/neighbourhood/e01001585) | 1,529 | 82.6 per 1,000 | 7 | 95.1% |
| [Greenwich 016C](https://openindex.co.uk/greenwich/neighbourhood/e01001586) | 1,426 | 42.5 per 1,000 | 5 | 48.5% |
| [Greenwich 016D](https://openindex.co.uk/greenwich/neighbourhood/e01001587) | 1,981 | 74.3 per 1,000 | 8 | 83.7% |
| [Greenwich 019D](https://openindex.co.uk/greenwich/neighbourhood/e01001652) | 1,706 | 93.6 per 1,000 | 5 | 88.5% |
| [Greenwich 021A](https://openindex.co.uk/greenwich/neighbourhood/e01001580) | 1,639 | 93.5 per 1,000 | 8 | 74.0% |
| [Greenwich 021B](https://openindex.co.uk/greenwich/neighbourhood/e01001582) | 1,533 | 111.8 per 1,000 | 4 | 69.4% |
| [Greenwich 021C](https://openindex.co.uk/greenwich/neighbourhood/e01001583) | 1,568 | 44.3 per 1,000 | 7 | 72.8% |
| [Greenwich 021D](https://openindex.co.uk/greenwich/neighbourhood/e01001584) | 1,502 | 46.0 per 1,000 | 8 | 18.3% |
| [Greenwich 022A](https://openindex.co.uk/greenwich/neighbourhood/e01001645) | 1,852 | 101.7 per 1,000 | 4 | 99.9% |
| [Greenwich 022B](https://openindex.co.uk/greenwich/neighbourhood/e01001647) | 1,486 | 61.2 per 1,000 | 6 | 99.8% |
| [Greenwich 022C](https://openindex.co.uk/greenwich/neighbourhood/e01001648) | 1,721 | 66.3 per 1,000 | 5 | 98.9% |
| [Greenwich 022D](https://openindex.co.uk/greenwich/neighbourhood/e01001649) | 1,576 | 83.9 per 1,000 | 3 | 99.7% |
| [Greenwich 025C](https://openindex.co.uk/greenwich/neighbourhood/e01001623) | 1,806 | 62.9 per 1,000 | 4 | 99.9% |
| [Greenwich 034A](https://openindex.co.uk/greenwich/neighbourhood/e01001656) | 1,341 | 47.0 per 1,000 | 6 | 51.9% |
| [Greenwich 034B](https://openindex.co.uk/greenwich/neighbourhood/e01001657) | 1,569 | 113.4 per 1,000 | 7 | 50.9% |
| [Greenwich 034F](https://openindex.co.uk/greenwich/neighbourhood/e01034174) | 1,253 | 155.8 per 1,000 | 7 | 97.6% |
| [Greenwich 034G](https://openindex.co.uk/greenwich/neighbourhood/e01034175) | 1,301 | 199.2 per 1,000 | 7 | 98.9% |
| [Greenwich 034I](https://openindex.co.uk/greenwich/neighbourhood/e01034177) | 1,602 | 97.4 per 1,000 | 5 | 91.3% |
| [Lewisham 009A](https://openindex.co.uk/lewisham/neighbourhood/e01003198) | 1,494 | 78.6 per 1,000 | 6 | 91.5% |
| [Lewisham 009B](https://openindex.co.uk/lewisham/neighbourhood/e01003200) | 1,475 | 240.9 per 1,000 | 7 | 48.5% |
| [Lewisham 009C](https://openindex.co.uk/lewisham/neighbourhood/e01003202) | 1,558 | 55.5 per 1,000 | 8 | 93.4% |

## Your MP

- [Eltham and Chislehurst](https://openindex.co.uk/constituency/eltham-and-chislehurst): Clive Efford (Labour), MP since July 2024. 42% of the people here.
- [Greenwich and Woolwich](https://openindex.co.uk/constituency/greenwich-and-woolwich): Matthew Pennycook (Labour), MP since July 2024. 37% of the people here.
- [Lewisham North](https://openindex.co.uk/constituency/lewisham-north): Vicky Foxcroft (Labour), MP since July 2024. 21% of the people here.

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

## Middle areas in SE3

[Blackheath Standard & Village](https://openindex.co.uk/greenwich/blackheath-standard-and-village), [Blackheath Village](https://openindex.co.uk/lewisham/blackheath-village), [Kidbrooke North](https://openindex.co.uk/greenwich/kidbrooke-north), [Kidbrooke South](https://openindex.co.uk/greenwich/kidbrooke-south), [Westcombe Park & Maze Hill](https://openindex.co.uk/greenwich/westcombe-park-and-maze-hill)

## Postcode sectors in SE3

[SE3 0 (173 postcodes)](https://openindex.co.uk/postcode/se3-0), [SE3 3 (14 postcodes)](https://openindex.co.uk/postcode/se3-3), [SE3 7 (178 postcodes)](https://openindex.co.uk/postcode/se3-7), [SE3 8 (176 postcodes)](https://openindex.co.uk/postcode/se3-8), [SE3 9 (254 postcodes)](https://openindex.co.uk/postcode/se3-9)

## Councils SE3 covers

[Greenwich](https://openindex.co.uk/greenwich), [Lewisham](https://openindex.co.uk/lewisham)

## Towns in SE3

[Greenwich](https://openindex.co.uk/greenwich), [Lewisham](https://openindex.co.uk/lewisham)

## Postcode districts next to SE3

[SE7](https://openindex.co.uk/postcode/se7), [SE9](https://openindex.co.uk/postcode/se9), [SE10](https://openindex.co.uk/postcode/se10), [SE12](https://openindex.co.uk/postcode/se12), [SE13](https://openindex.co.uk/postcode/se13), [SE18](https://openindex.co.uk/postcode/se18)

## Nearest rail stations

[Kidbrooke (750 m from the middle)](https://openindex.co.uk/map/rail-stations?around=0.0275,51.4621), [Blackheath (1.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.0089,51.4658), [Westcombe Park (1.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.0184,51.4842), [Maze Hill (2.1 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.0029,51.4826)

## More in the SE postcode area

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

## SE3 in brief

SE3 is a postcode district covering Kidbrooke and Blackheath Park, in Greenwich and Lewisham.
About 36,481 people lived in SE3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £540,000 in 2025 across 529 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 90.9 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SE3 was £540,000 in 2025.
SE3 had 35,473 usual residents at the census.
About 28% of people in SE3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SE3, 79.8% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SE3
- Postcode area: [SE](https://openindex.co.uk/postcode/se)
- Constituency: [Eltham and Chislehurst †](https://openindex.co.uk/constituency/eltham-and-chislehurst)
- Council: [Greenwich †](https://openindex.co.uk/greenwich)
- Area: 6.81 km²
- People, mid-2024: 36,481*
- Neighbourhoods: 23
- Output areas: 127

* 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

[SE10](https://openindex.co.uk/postcode/se10), [SE13](https://openindex.co.uk/postcode/se13), [SE9](https://openindex.co.uk/postcode/se9), [SE18](https://openindex.co.uk/postcode/se18), [SE12](https://openindex.co.uk/postcode/se12), [SE7](https://openindex.co.uk/postcode/se7)

## Latest updates for SE3

- 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/SE3

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/se3, or to one figure with its anchor, https://openindex.co.uk/postcode/se3#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/se3