Over refined materials for interiors generate a lot of waste, here, a focus on material efficiency and material appreciation will reduce the amount of waste produced within any given project. Raw and rough materials which have not been reduced by industrial over-processing can be luxurious. A unit-module-system language develops; the units are individual pieces, the module is joining them together into a bigger part, and the system is how these big parts are used at an architectural scale. Three flexible interior strategies move and adapt to any space. Abandon the way of treating conventional interior materials, and re-evaluate and re-frame perceptions of value.