Sydenham area report

Highlights

Sydenham is a neighbourhood in London with a population of 16,354. The median property price is £445,000, with 353 sales recorded over 12 months. Flats form the majority of transactions at 205 sales with a median of £372,000, while semi-detached properties median at £680,000 and terraced properties at £662,000. Prices have increased 8.1 per cent over five years. Air quality is moderate, with nitrogen dioxide at 16.5 annual mean and particulate matter at 8.1 annual mean. Flood risk is negligible. The area contains 18 conservation areas including Crystal Palace Park and Sydenham Hill, plus 13 listed buildings. About 35 per cent of neighbourhoods in England are more deprived than Sydenham. Broadband connectivity is strong, with 99.2 per cent superfast coverage and 83.2 per cent gigabit-capable coverage. Council tax band D is £2,237.33, administered by the London Borough of Lewisham.

Data updated 2026/2025. Sydenham, London — a free, sourced local-area report from Acreright. Every figure shows its source and date; where the data isn't reliable we say so rather than guess.

This district. Figures below lead with Sydenham’s own data where it exists; wider-area statistics are clearly labelled.

Within London, Sydenham ranks 7th cheapest of 33, 21st safest and 7th most affordable.

What does it cost?

• £445,000 median home price (HM Land Registry Price Paid, May 2026) Across this district

Sold prices in Sydenham have risen 8% over the last five years (UK House Price Index).

Who lives here?

• 16,354 residents (ONS Census 2021 (Nomis), 2021) Across this district

About 35% of neighbourhoods in England are more deprived than Sydenham (English Indices of Deprivation, decile 4 of 10, national basis). Little changed since 2019 (decile 4).

Schools

• 95% of inspected schools rated Good or Outstanding (Get Information About Schools (GIAS) + Ofsted inspections MI, 2026) Across this district

Getting around

• ≈11 min fastest train to London (OpenStreetMap + National Rail timetable (ATOC/RDG, GTFS), 2026) This district
• 83% of premises can get gigabit broadband (Ofcom Connected Nations, 2024) Across this district

Has it been a good investment?

Investment context: a gross rental yield of about 5.5% (area median rent against the median sold price) — appraise a specific property at /appraisal/sydenham.

Compare every area in London: London area guide & rankings.

Nearby areas we cover: Perry Vale, Forest Hill, Crystal Palace.