Sydenham area report

Highlights

Sydenham is a London neighbourhood with a population of 16,354. The median property price is £445,000, with 353 sales in the past 12 months and prices rising 8.1 percent over five years. Flats typically sell for £372,000, while terraced houses average £662,000 and semi-detached properties reach £680,000. Crime levels are measured at 605 incidents in May 2026, with violent crime the most common category at 207 cases, followed by anti-social behaviour at 157. About 35 percent of neighbourhoods in England are more deprived than Sydenham. Air quality is moderate, with nitrogen dioxide at 16.5 and particulate matter at 8.1. There is no flood risk. Broadband coverage is strong: 99.2 percent have superfast connectivity and 83.2 percent have gigabit speeds. The area contains 18 conservation areas including Crystal Palace Park and Sydenham Park, plus 13 listed buildings. Governed by London Borough of Lewisham, council tax for band D properties is £2,237.33 in 2026/27.

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, 20th 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?

• 300,551 residents (ONS Census 2021 (Nomis), 2021) 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

• 97% of inspected schools rated Good or Outstanding (Get Information About Schools (GIAS) + Ofsted inspections MI, 2026) Across this district

Getting around

• 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.