# SE23

Postcode district covering Forest Hill and Honor Oak Park, in Lewisham.

SE23 is a postcode district covering Forest Hill and Honor Oak Park, in Lewisham. Median sale price £519,000 in 2025. Recorded crime 84.0 per 1,000 people.

Postcode district. Code SE23. 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 SE23 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £519,000** (2025). The median price paid for a home in SE23 was £519,000 in 2025. 250th 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/se23#f-house-sales-median-price
- **Population: 34,067** (2021). SE23 had 34,067 usual residents at the census (ONS Census 2021). 699th 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/se23#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in SE23 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/se23#f-radon-affected-share
- **Gigabit broadband coverage: 92.0%** (January 2026). In SE23, 92.0% 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/se23#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SE23) (Worked out by Open Index · 2022): About 0% of people in SE23 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=SE23) (Worked out by Open Index · 2025): 498 homes were sold in SE23 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SE23) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SE23.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SE23) (Census 2021, England and Wales): SE23 had 34,067 usual residents at the census.

## How SE23 compares

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

| Measure | SE23 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £519,000 | 10th most expensive | 28 postcode districts, SE · 2025 |
| Population | 34,067 | 13th most populated | 29 postcode districts, SE · 2021 |
| People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 29 postcode districts, SE · 2022 |
| Gigabit broadband coverage | 92.0% | 13th highest | 29 postcode districts, SE · Jan 2026 |

## Is SE23 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SE23 at a rate of 84.0 per 1,000 people.
That compares with 133.0 per 1,000 people across the SE postcode area.
In August 2026 alone, 235 cases of crime and anti-social behaviour were recorded in SE23.
In the 12 months to August 2026, the most common types were violence and sexual offences (849), anti-social behaviour (610) and other crime (388).
A year earlier, the recorded crime rate in SE23 was 89.5 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 SE23, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SE23 has no single figure. Of its 21 neighbourhoods with a rank:
- Decile 2: 2 neighbourhoods
- Decile 3: 2 neighbourhoods
- Decile 4: 4 neighbourhoods
- Decile 5: 1 neighbourhood
- Decile 6: 9 neighbourhoods
- Decile 7: 2 neighbourhoods
- Decile 8: 1 neighbourhood

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

## Neighbourhoods in SE23

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Lewisham 019A](https://openindex.co.uk/lewisham/neighbourhood/e01003226) | 1,838 | 139.8 per 1,000 | 7 | 99.6% |
| [Lewisham 019B](https://openindex.co.uk/lewisham/neighbourhood/e01003227) | 1,639 | 82.7 per 1,000 | 8 | 93.6% |
| [Lewisham 019C](https://openindex.co.uk/lewisham/neighbourhood/e01003228) | 1,578 | 58.9 per 1,000 | 6 | 99.9% |
| [Lewisham 019D](https://openindex.co.uk/lewisham/neighbourhood/e01003229) | 1,686 | 159.0 per 1,000 | 2 | 90.3% |
| [Lewisham 019E](https://openindex.co.uk/lewisham/neighbourhood/e01003230) | 1,997 | 58.4 per 1,000 | 4 | 89.0% |
| [Lewisham 021A](https://openindex.co.uk/lewisham/neighbourhood/e01003254) | 1,438 | 84.5 per 1,000 | 6 | 91.1% |
| [Lewisham 021B](https://openindex.co.uk/lewisham/neighbourhood/e01003255) | 1,990 | 148.1 per 1,000 | 4 | 84.0% |
| [Lewisham 021C](https://openindex.co.uk/lewisham/neighbourhood/e01003260) | 1,661 | 64.6 per 1,000 | 6 | 72.3% |
| [Lewisham 021D](https://openindex.co.uk/lewisham/neighbourhood/e01003261) | 1,526 | 70.8 per 1,000 | 7 | 90.5% |
| [Lewisham 021E](https://openindex.co.uk/lewisham/neighbourhood/e01003262) | 1,524 | 56.1 per 1,000 | 6 | 89.5% |
| [Lewisham 024A](https://openindex.co.uk/lewisham/neighbourhood/e01003307) | 1,599 | 46.7 per 1,000 | 6 | 100.0% |
| [Lewisham 024B](https://openindex.co.uk/lewisham/neighbourhood/e01003308) | 1,789 | 86.9 per 1,000 | 4 | 98.4% |
| [Lewisham 024C](https://openindex.co.uk/lewisham/neighbourhood/e01003314) | 1,645 | 58.5 per 1,000 | 6 | 100.0% |
| [Lewisham 024D](https://openindex.co.uk/lewisham/neighbourhood/e01003315) | 1,306 | 56.6 per 1,000 | 4 | 96.1% |
| [Lewisham 024E](https://openindex.co.uk/lewisham/neighbourhood/e01003316) | 1,477 | 88.8 per 1,000 | 6 | 99.0% |
| [Lewisham 027A](https://openindex.co.uk/lewisham/neighbourhood/e01003309) | 1,620 | 75.7 per 1,000 | 3 | 99.4% |
| [Lewisham 027B](https://openindex.co.uk/lewisham/neighbourhood/e01003310) | 1,589 | 92.3 per 1,000 | 3 | 86.6% |
| [Lewisham 027C](https://openindex.co.uk/lewisham/neighbourhood/e01003311) | 1,596 | 79.8 per 1,000 | 6 | 99.7% |
| [Lewisham 027D](https://openindex.co.uk/lewisham/neighbourhood/e01003312) | 1,756 | 65.6 per 1,000 | 6 | 98.9% |
| [Lewisham 027E](https://openindex.co.uk/lewisham/neighbourhood/e01003313) | 1,571 | 125.4 per 1,000 | 2 | 95.3% |
| [Lewisham 028B](https://openindex.co.uk/lewisham/neighbourhood/e01003257) | 1,602 | 63.9 per 1,000 | 5 | 84.3% |

## Your MP

- [Lewisham West and East Dulwich](https://openindex.co.uk/constituency/lewisham-west-and-east-dulwich): Ellie Reeves (Labour), MP since July 2024. 98% of the people here.
- [Dulwich and West Norwood](https://openindex.co.uk/constituency/dulwich-and-west-norwood): Helen Hayes (Labour), MP since July 2024. 1.6% 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 SE23

[Forest Hill East](https://openindex.co.uk/lewisham/forest-hill-east), [Forest Hill West](https://openindex.co.uk/lewisham/forest-hill-west), [Honor Oak](https://openindex.co.uk/lewisham/honor-oak), [Perry Vale](https://openindex.co.uk/lewisham/perry-vale)

## Postcode sectors in SE23

[SE23 1 (156 postcodes)](https://openindex.co.uk/postcode/se23-1), [SE23 2 (209 postcodes)](https://openindex.co.uk/postcode/se23-2), [SE23 3 (248 postcodes)](https://openindex.co.uk/postcode/se23-3), [SE23 9 (12 postcodes)](https://openindex.co.uk/postcode/se23-9)

## Council

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

## Towns in SE23

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

## Postcode districts next to SE23

[SE4](https://openindex.co.uk/postcode/se4), [SE6](https://openindex.co.uk/postcode/se6), [SE15](https://openindex.co.uk/postcode/se15), [SE22](https://openindex.co.uk/postcode/se22), [SE26](https://openindex.co.uk/postcode/se26)

## Nearest rail stations

[Forest Hill (450 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.0532,51.4393), [Honor Oak Park (850 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.0455,51.4500), [Catford (1.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.0263,51.4444), [Crofton Park (1.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.0365,51.4552)

## 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)

## SE23 in brief

SE23 is a postcode district covering Forest Hill and Honor Oak Park, in Lewisham.
About 34,039 people lived in SE23 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £519,000 in 2025 across 498 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 84.0 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SE23 was £519,000 in 2025.
SE23 had 34,067 usual residents at the census.
About 0% of people in SE23 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SE23, 92.0% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SE23
- Postcode area: [SE](https://openindex.co.uk/postcode/se)
- Constituency: [Lewisham West and East Dulwich †](https://openindex.co.uk/constituency/lewisham-west-and-east-dulwich)
- Council: [Lewisham †](https://openindex.co.uk/lewisham)
- Area: 4.16 km²
- People, mid-2024: 34,039*
- Neighbourhoods: 21
- Output areas: 109

* 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

[SE26](https://openindex.co.uk/postcode/se26), [SE6](https://openindex.co.uk/postcode/se6), [SE22](https://openindex.co.uk/postcode/se22), [SE4](https://openindex.co.uk/postcode/se4), [SE15](https://openindex.co.uk/postcode/se15)

## Latest updates for SE23

- 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/SE23

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/se23, or to one figure with its anchor, https://openindex.co.uk/postcode/se23#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/se23