A house plan is a set of construction or working drawings (sometimes still called blueprints) that define all the construction specifications of a residential house such as dimensions materials layouts installation methods and techniques.
Interior design is the art or process of designing the interior often including the exterior of a room or building. An interior designer is someone who coordinates and manages such projects. Interior design is a multifaceted profession that includes conceptual development communicating with the stakeholders of a project and the management and execution of the design.
Interior design is the process of shaping the experience of interior space through the manipulation of spatial volume as well as surface treatment.
A house is a building that functions as a home ranging from simple dwellings such as rudimentary huts of nomadic tribes and the improvised shacks in shantytowns to complex fixed structures of wood brick marble or other materials containing plumbing ventilation and electrical systems.
A floor is the walking surface of a room or vehicle. Floors vary from simple dirt in a cave to many-layered surfaces modern technology. Floors may be stone wood bamboo metal or any other material that can support the expected load.
The levels of a building are often referred to as floors although a more proper term is story or storey.
Floors typically consist of a subfloor for support and a floor covering used to give a good walking surface. In modern buildings the subfloor often has electrical wiring plumbing and other services built in. As floors must meet many needs some essential to safety floors are built to strict building codes in some regions.

DIY Small House plans