Depending on the scale of your project, it may take four weeks or 18+ months to complete. We have removed French doors and added a 12-foot sliding glass door in a couple of weeks, and we have built a large custom home in 18 months. A standard 2,000 square foot home with no septic system takes approximately eight months from permit to completion. Sometimes it goes a little faster, but sometimes, it goes a little slower depending on material availability and weather. Over the past year, time frames have improved significantly. There are many variables depending on wetlands, flood zones, septic permits, size of home, and types of interior finishes and customizations.