Right, it is site work but usually refers more to the finished, visible work. In a large project you would have the Civil drawings done by a civil engineer and Area Development drawings done by the landscape architect. In fast-track or early site work projects they'll often by submitted for permitting together because they are very interrelated drawings. A civil engineer will typically be responsible for the grading, water management, most subsurface utilities and structures like retaining walls. A landscape architect is typically responsible for the landscaping materials, irrigation, hardscaping (walkways) and some small structures or at least their finished look.