In a self-build, one manages certain aspects of their own project. Some tasks must be carried out by professionals (excavation, plumbing, electricity, etc.), but others can be carried out by the self-builder or by subcontractors that the self-builder hires. This approach to building certainly has a financial advantage for anyone with knowledge of the construction industry, but if you’re a first-time buyer, don't know much about the construction industry and no one around you has the time or the expertise to help you, it’s best to cross it off your list of options!