Residents of the UK’s most expensive flats have won a court case over defective pipework. If their homes are shoddily built, what hope do the rest of us have?

Even multimillionaires can’t escape Britain’s cowboy builders, it seems. Last week, residents of One Hyde Park, the UK’s most expensive flats, won a £35m court case against the contractor that built their homes. The high court ordered the construction company Laing O’Rourke to fix defective pipework that was discovered to be causing problems in 2014, only three years after the luxury development was completed.

At the other end of the economy, tens of thousands of families are facing damp and mould issues also caused by botched building works. A National Audit Office investigation revealed in October last year that a staggering 98% of external insulation fitted under the previous government’s home-improvement schemes was installed so ineptly that it will have to be repaired or replaced.

Phineas Harper is a writer and curator