PlanTracer is a simple-to-use application that can perform complex automation from real -estate inventory using legacy floor-plans of any building. Plans are the foundation of PlanTracer and possess several unique features – plans consist not only of graphic primitives such as lines, arches and geometrical shapes, as found in other CAD -systems, but also of PT-objects - walls, stairs, windows, doors, rooms, furniture, fixtures etc. These objects are converted and can be edited as one unit. Thus, a floor plan created using PlanTracer represents a set of PT-objects that can be given as inventory related to the real-estate.
http://www.csoft.com/products/plantracer