The built environment is increasingly shifting towards smart and sustainable cities. This transformation is accompanied by the implementation of new digital and smart technologies, and their supporting infrastructure. This advancement poses new challenges to the process of operating the built environment and in particular, to the management of new risks associated with use and operation of a more complex built environment. There is still a dearth of studies proposing new ways to cope with risks from the increased sophistication in the built environment. This paper analyses the ability of an emerging technology and process for site access verification. The aim is to improve control measures in respect of the operational risk profile. HyDeploy, a UK based sustainable built environment gas decarbonisation pilot project, is used as a study case. HyDeploy is a project aiming to demonstrate that using hydrogen blended gas for heating and cooking is just as safe and convenient as the gas used currently in the UK. The paper presents the current process for site access verification used in the project, before investigating the potential benefits of the application of an emerging technology for site access procedure. The paper concludes that the emerging procedure has the potential to improve both the compliance position of site owners, and the overall operator safety on site.