The decision to exit the EU referendum is impacting commercial prices across the UK, according to data from CBRE.
The advisory firm said that office values fell by 3.3% across the UK in July, with London hit hardest.
It said: "The fall in capital values was widely expected and pulled year-on-year growth down to 0.4%. Heightened economic uncertainty, especially for financial services firms, hit offices in the City of London, shrinking capital values by -6.1%."
Estate agent Savills has reported that that profits in its UK commercial property division more than halved in the first six months of this year.