By Jonathan Owen2021-01-19T06:01:00+00:00 Review into scheme due out this month The true cost of the Palace of Westminster refurb programme is likely to be at least £12bn – three times higher than previously thought estimates of £4bn, according to sources close to the programme. Building understands that senior officials from the Infrastructure and Projects Authority briefed Number 10 on the true cost of the programme last year. More than 40,000 problems have been reported with the fabric and insides of the Palace of Westminster since 2017 alone And Meg Hillier, chair of the public accounts committee, told Building the cost could be “at least” £12bn.