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Portslade by Sea
Portslade by Sea is a neighbourhood in East Sussex with a population of 10,196.
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Portslade by Sea is a neighbourhood in East Sussex with a population of 10,196. The median house price is £420,250, with 236 sales recorded over 12 months. Terraced homes have a median price of £418,000, while flats average £312,500 and detached houses £860,000. The area has experienced 17.9% price growth over five years. Deprivation levels are mixed: about 55% of neighbourhoods in England are more deprived. Air quality is moderate, with nitrogen dioxide at 11.1 annual mean and PM2.5 at 6.7. Flood risk affects 3.5% of the area. Broadband connectivity is strong, with 97.1% superfast coverage. The median age is 39.7 years, and 62.1% of homes are owner-occupied. The population is 85.8% White, with 5.0% Mixed ethnicity and 4.1% Asian. Council Tax Band D is £2,580.54. The area falls under Brighton & Hove City Council, a Labour-controlled unitary authority.
Data updated 2026/2025. Portslade by Sea, East Sussex — 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 Portslade by Sea’s own data where it exists; wider-area statistics are clearly labelled.
Within East Sussex, Portslade by Sea ranks 6th cheapest of 6, 4th safest and 4th most affordable.
Sold prices in Portslade by Sea have risen 18% over the last five years (UK House Price Index).
About 55% of neighbourhoods in England are more deprived than Portslade by Sea (English Indices of Deprivation, decile 6 of 10, national basis). Little changed since 2019 (decile 6).
Of homes in Portslade by Sea that changed hands in the last five years, 5.6% sold for less than the previous owner paid — 11.5 points below South East (17.1%) (nominal, not inflation-adjusted). Across those resales the typical gain was 35.33% over 8.71 years held.
Investment context: a gross rental yield of about 5.1% (area median rent against the median sold price) — appraise a specific property at /appraisal/portslade by sea.
Compare every area in East Sussex: East Sussex area guide & rankings.
Nearby areas we cover: Portslade Village, Aldrington, Hangleton.
Portslade by Sea is a neighbourhood in East Sussex with a population of 10,196.