SE23 postcode area
The SE23 postcode district spans 10 neighbourhoods (MSOAs) in Lewisham, Southwark. Area Scores range from 17 to 65 across them.
In summary
There is a sharp split within the SE23 district: Crofton Park scores 66 out of 100 (#2,349 of 6,856 nationally) while Bellingham & Perry Hill sits at 18 — neighbours on the map, 48 points apart on the index. 3 of the 10 rank in the most-deprived third of England; none reaches the least-deprived third. Median prices range from £450,000 in Upper Sydenham to £711,000 in Crofton Park. Note that the district straddles 2 local authorities — Lewisham and Southwark — so its neighbourhoods answer to different councils.
| Neighbourhood | Nat. rank | Area score | Median price |
|---|---|---|---|
| Crofton ParkLewisham | 2,349 | 66 | £711,000 |
| Dulwich HillSouthwark | 3,069 | 55 | £625,000 |
| Nunhead South & NewlandsSouthwark | 3,083 | 55 | £575,000 |
| Sydenham HillSouthwark | 3,158 | 54 | £475,000 |
| Forest Hill WestLewisham | 3,179 | 54 | £470,000 |
| Forest Hill EastLewisham | 3,522 | 49 | £570,000 |
| Honor OakLewisham | 3,618 | 47 | £560,000 |
| Upper SydenhamLewisham | 4,721 | 31 | £450,000 |
| Perry ValeLewisham | 4,769 | 30 | £468,500 |
| Bellingham & Perry HillLewisham | 5,633 | 18 | £455,000 |
Nearby areas
Postcode districts around SE23.
A postcode district overlaps several neighbourhoods, so figures are shown per neighbourhood rather than as a single postcode average — neighbouring areas can differ a lot. Neighbourhood (MSOA) boundaries contain ONS data © Crown copyright and database right 2025, Open Government Licence v3.0.