By Guy Taylor London has narrowly overtaken Geneva to become the most expensive city in the world to build in, according to a new report. Increasingly stringent safety and sustainability targets for construction projects have pushed prices upwards, placing the UK capital ahead of the likes of Geneva, Zurich and Munich. The report, compiled by the consultancy Arcadis, compared construction costs at 100 of the world’s largest cities. Every city in the UK and Ireland sat within the top 25 most expensive locations to build in the world, excluding Belfast. Specification enchancements related to “bu…