A retained site engineering arrangement means one engineer, one control network, and one setting out register for the full duration of your programme — removing the coordination gaps and record inconsistencies that lead to costly setting out disputes. This guide explains what a long-term package covers and the commercial case for continuity.

Setting out errors can cost project managers time, money, and trust. In this practical guide from AKN Engineering, based in Hertfordshire, we break down the most common setting out mistakes—and how to avoid them. Whether you’re overseeing groundwork or final finishes, this article will help you spot red flags early and keep your project on track.