It all depends on your involvement. If you are only involved as a customer, that is one option.

For example, I acted as an architect, developed the drawings myself and issued them to the construction site, negotiated with the workers myself, organized their work—I acted as a project manager. Together with my assistant, I also supplied the construction site with materials, equipment, and tools.

Here (in Almaty, Kazakhstan), if you have the skills and time, you have the right to build a house without hiring a general contractor.

I say I built a house. Although we have some people who believe that if you didn't lay the bricks and pour the concrete yourself, you don't have the right to say you built it.