Construction projects are plagued with delays, and regularly finish over time and over budget. Monitoring of progress on site is costly, imperfect and subjective. On a micro scale, this leads to delay fees, compromised quality, and deep frustration amongst all stakeholders. On a macro scale, it means wasting millions of pounds and months of delays on projects, including critical housing and transportation projects around the country. We solve this by applying elements of SLAM and photogrammetry to create an automated process that documents the site and creates a 3D model that can facilitate collaboration.