What is a House Plan or a Blue Print design for a residential building?

Construction estimate for any building is directly proportional to the design, material specification and logistics movement (plot location).where ever if we check minutely then there are many factors which involve for your building estimate i.e Design given by consultant, Material Specification, Plot location etc. Any type of design that going to be executed on the site shall always need to have the material specification and its quantity, more over the execution is also most important factor, that the contractor hired for construction they have well equipped machinery and qualified man power because the wastage% should not increase this is the most important aspect which can be controlled by us and contractor due to which we can control the construction budget as per the given budget by engineer or consultant . At the time of construction it always get dispute between the owner and contractor due the increased cost which always due to the material wastage. This part always ignored by the owner .