Quality is not supervised,
it is built.
—Dr. William Edwards Deming
In every project, all processes are important and have to be executed with the quality that is expected, the final product will be a sum of all of them.
What determines the quality of a housing is the satisfaction of the client who will compare their expectations with what was offered to them from part of the developer or whomever sold the property.
This is why inspection is an important part of the development of any project in order to meet its expectations and achieve its potential.