Despite ongoing efforts, a new report, the BauWatch's Construction Crime Report 2025, has unveiled a sharp escalation in site crime within the UK construction industry.

This surge is causing severe financial losses and significant project delays for firms and critical infrastructure projects nationwide. An alarming 67% of construction professionals reported an increase in site crime over the past year, which is nearly double the European average.

The report highlights that nearly one-third (31%) of construction projects have been delayed due to crime-related incidents, with one in four of those projects experiencing slowdowns of up to four weeks. These interruptions are contributing to an approximate 5% increase in overall project costs, driven by extended labour, equipment hire, and rescheduling challenges. Insurer Allianz Cornhill estimates that theft alone costs the UK building industry £800 million annually, factoring in related consequences such as project delays and increased insurance premiums.

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Furthermore, the report details the widespread use of intimidation tactics, with 49% of workers reporting offers of "protection" and 27% admitting to paying, suggesting that racketeering is an entrenched issue. The black market for stolen goods is also thriving, with 31% of respondents stating that stolen construction materials and tools "often" circulate through underground networks, an 11 percentage point increase from previous years. Mim Mogul, UK Managing Director at BauWatch, described the situation as the "industrialisation of construction crime," warning that these are "calculated operations run by well-organised networks" that lead to delayed projects, increasing insurance costs, and even mental health issues for those affected. Despite UK firms deploying fixed CCTV on 48% of sites – double the European average – criminals are increasingly employing sophisticated tactics, including hacking security systems (28%), drone reconnaissance (26%), and cloning access credentials (22%). The most commonly stolen items include small tools, power tools (52%), copper (48%), and cables (33%). The report calls for a robust, layered security strategy and enhanced intelligence sharing with law enforcement.