Over a million dollars worth of home sales were saved because of this technique I invented. The "Setback Bubble Method" allowed for a jigsaw puzzle like manipulation of house, driveway, and property line orientation, while constantly monitoring for minimum lot size. The "bubbles" layer on each unique house model simultaneously represents single story, double story and front yard setback limits. Setback lines were not needed at all until the final design drawings were required. A great deal of wasted time and frustration was avoided by not having to redraw all the setback lines every time a design move was considered. A similar method of using “diagrammatic layers” with icons and color coding on each house design was used to instantly view the options to be implemented on each house, so that each home in the neighborhood would be unique even though there are only 9 floor plans used in the entire project.