RPC has secured a High Court victory for real estate developer Hammerson and insurance company Aviva, which will see the companies awarded £14.7m in damages following an eight-year dispute related to the former London Stock Exchange building.

The action concerned glass installed during a redevelopment of the building carried out by construction company Lendlease, the defendant in the case.

In 2009, a pane of glass fell from the building, the first in 16 failures in four years that included six further panes falling from the 26-storey tower. Much of the glass installed on the outside of the building was later found not to have been sufficiently heat-treated.

Handing down his judgement, Mr Justice Stuart-Smith said  it was fortunate nobody was seriously injured by the falling glass and that the failures of the projects were "disastrous".

RPC, which was first instructed by insurer Aviva in 2011, fielded a team led by construction partner Dan Preston and litigation partner Robert Hogarth, with Anneliese Day QC of Fountain Court Chambers and Calum Lamont of Keating Chambers instructed as counsel.

Commenting on the court ruling, Preston said: "This is a truly exceptional result and the judgment exceeds all of the client's expectations. There were many complexities to the case, including the technical issues, late disclosure and the number of parties with an interest in the proceedings."

Charles Russell Speechlys acted for Lendlease, alongside Adam Constable QC and Sarah Williams of Keating Chambers.