On the face of it, extending a warehouse is a straightforward affair. In the case of this project in Henderson, however, there were a number of complicating factors. The first was the site itself, a narrow property with congested access set above a bush-lined creek. To minimise risk of runoff, the team installed a silt fence. The existence of a council-owned stormwater drain at the rear of the site required significant piling and foundation design work, while careful planning went in to ensuring safe access to complete the building’s envelope given its close proximity to a steep slope above the creek and the tree line.