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Postcode insights

SE23 3XJ

Forest Hill

Lewisham

England / London / Lewisham / Upper Sydenham / Forest Hill / SE23 3XJ

Overview

Postcode SE23 3XJ is located in a major urban area, within the Forest Hill ward of Lewisham in the London region , and forms part of the Upper Sydenham area. It has high deprivation and moderate crime levels, with around 80.6 crimes per 1,000 residents per year. The average income of residents in Upper Sydenham is £56,400 per year. The nearest station is Forest Hill located about 0.4 miles away. There are 13 primary and 2 secondary schools in the area. There are 4 parks nearby, closest large park is Horniman Museum and Gardens.

Crime rate
5/10
Crimes per 1k residents
81
Deprivation level
7/10
Income level
5/10
Social housing
2.9%
Connectivity
7/10
Flood Risk
No risk
Noise Level
Low

Deprivation level

7/10

Upper Sydenham has a high level of deprivation, ranked at position 12,841 out of 32,844 areas in the United Kingdom — placing it within the top 39% most deprived areas in England.

Crime level

5/10

Upper Sydenham has a moderate crime rate, with approximately 80.6 reported incidents per 1,000 residents each year.

Social housing

2.9%

Approximately 2.9% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 31.6% of dwellings are socially rented.

Income level

5/10

The average income of residents in Upper Sydenham is £56,400 per year.

Noise Level

Low

Low noise level (55.0-59.9 dB) from road, approximately 158 ft away from SE23 3XJ.

Flood risk

No risk

Upper Sydenham near SE23 3XJ has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.

Transport

7/10

The nearest station is Forest Hill located about 0.4 miles away. There are 3 stations nearby.

DistanceZoneNameLines
0.4 mi

3

Forest Hill

Overground, Southern

0.9 mi

3

Sydenham

Overground, Southern

0.9 mi

3

Sydenham Hill

Southeastern, Thameslink

Parks

DistanceNameSize
0.3 miHorniman Museum and GardensLarge
0.1 miHorniman TriangleSmall
0.2 miBaxters FieldSmall

Property prices in Forest Hill

Based on 175 recent sales, the median property price is £472,500 in Forest Hill area, with individual transactions ranging from £190,000 up to £1,900,001.

By property type (last year):
TypeSalesMedian
Detached11£1,215,000
Flats110£387,500
Semi-Detached18£940,000
Terraced36£725,000

10 years price trend in Forest Hill

Schools

In the SE23 3XJ postcode area, located within Upper Sydenham, there are 13 primary and 2 secondary schools in close proximity.

DistancePhaseNameTypeRating
0.2 miPrimaryEliot Bank Primary SchoolCommunity school

Good

0.3 miPrimaryHoly Trinity Church of England Primary SchoolVoluntary aided school

Good

0.3 miSecondarySydenham SchoolCommunity school

Good

Local amenities

DistanceNameAddress
0.2 miTesco Express86 London Road, London, SE23 3PE
0.3 miSainsbury's34-48 London Road, London, SE23 3HF
0.3 miInpans food20 London Road, Lewisham, SE23 3HF
0.3 miForest Hill Supermarket61 Dartmouth Road, London, SE23 3HN
0.4 miHEB Mini MarketDartmouth Road, Lewisham, SE23 3AS

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/08/2025.