Preparation for extensions and house building will always require the necessary foundations to build off. In most cases, it will require a depth of approximately one meter.to excavate and provide a solid form of construction, in cases where trees are formed close to the property you can expect to dig out an average of two meters an alternative would be to have the ground piled which can be stated when drawings are being scheduled. In some cases, a raft based can be specified through a structural engineer. Where access is easily available at the property a mini digger is the best form of excavation, be cautious of any drains or electrical wiring underground if this is a DIY project.
Mini digger and driver hire is an alternative. We work closely with many local reputable builders who have been using our services for providing foundation concrete for many years, we would be happy to recommend local builders and ground workers for this service if required.