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Southbank East office market faces high vacancies amid weakened occupier demand

Lack of prelet activity and a cautious outlook shape the submarket in 2025 and beyond
CoStar Analytics
September 29, 2025 | 1:44 P.M.

Southbank East, long regarded as one of London’s most vibrant office submarkets, is experiencing challenging times as fundamentals weaken and demand for large, new space slows. Net absorption – the change in occupied office space – has remained largely negative over the past two years, pushing vacancy rates to 10.6%. This figure, while broadly in line with the London average, is among the highest ever recorded for the area.

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