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SE23 postcode area · Lewisham

The SE23 postcode district spans 10 neighbourhoods (MSOAs) in Lewisham, Southwark. Area Scores range from 17 to 65 across them. Every full SE23 postcode falls within one of the neighbourhoods below.

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.

Living here

Typical net household income£55,383a year, weighted avg of neighbourhood estimates
Recorded crime73per 1,000 residents, 12m
Median age (est.)37
Owner-occupied52%

Income: ONS model-based estimates (FYE 2023). Crime: data.police.uk, recorded incidents. Age & tenure: Census 2021. All OGL v3.0 — methodology.

House prices in the SE23 district

£512,000median home sold over the past year · +7.8% over 5 years · +5.6% over the year · 444 sales
Detached£1,027,500
Semi-detached£901,000
Terraced£760,000
Flat£413,250
Lewisham£472,500
London£525,512
England£300,000
Annual median price, all homes. Small samples can be volatile.
Area Score:more deprivedless deprivedTap a neighbourhood to open it →
NeighbourhoodNat. rankArea scoreMedian price
Crofton ParkLewisham 2,34966 £711,000
Dulwich HillSouthwark 3,06955 £625,000
Nunhead South & NewlandsSouthwark 3,08355 £575,000
Sydenham HillSouthwark 3,15854 £475,000
Forest Hill WestLewisham 3,17954 £470,000
Forest Hill EastLewisham 3,52249 £570,000
Honor OakLewisham 3,61847 £560,000
Upper SydenhamLewisham 4,72131 £450,000
Perry ValeLewisham 4,76930 £468,500
Bellingham & Perry HillLewisham 5,63318 £455,000

People living in SE23 Census 2021

Residents80,692
Median age (est.)37
Density6,792per km²
No qualifications12%
Degree or above56%
No car or van42%

Age

0–14 20%15–24 10%25–44 35%45–64 25%65+ 10%

Tenure

Own outright: 19%Mortgage/shared: 33%Social rent: 24%Private rent: 24%
Own outright 19%Mortgage/shared 33%Social rent 24%Private rent 24%

Households

One person: 29%Couple, no children: 16%Couple with children: 25%Lone parent: 15%Other: 15%
One person 29%Couple, no children 16%Couple with children 25%Lone parent 15%Other 15%

Work (top occupations)

Professional 30% · Associate professional 19% · Managers & directors 15%

All occupation groups
Professional30%
Associate professional19%
Managers & directors15%
Caring & leisure7%
Administrative7%
Elementary7%
Skilled trades6%
Sales & customer service5%
Process & plant3%

Ethnic group

White: 60%Asian: 7%Black: 21%Mixed: 8%Other: 4%
White 60%Asian 7%Black 21%Mixed 8%Other 4%

Religion & identity

No religion 43% · Christian 41% · Muslim 6%

Born outside the UK: 29%

Census 2021 (ONS), Crown copyright, OGL v3.0. Shares are of each question's own respondents (e.g. education is % of residents aged 16+). Figures date from March 2021 and change slowly between censuses.

Towns & places in SE23

Places whose neighbourhoods overlap the SE23 district.

Forest Hill Nunhead

Nearby areas

Postcode districts around SE23.

SE26 SE22 SE6 SE4 SE21 SE13 SE20 SE15

A postcode district overlaps several neighbourhoods, so per-neighbourhood figures are shown alongside the district-wide medians — neighbouring areas can differ a lot. Neighbourhood (MSOA) boundaries contain ONS data © Crown copyright and database right 2025, Open Government Licence v3.0.