From planning to finish, it was 2 years. Google Sketchup was key to the planning phase. Having the right tools was paramount to construction and having a patient wife helped quite a bit as well. We knocked down the wall dividing our tiny kitchen with the dining room and replaced it with a half wall making the kitchen 16″ wider. It made a huge difference as the video will show. We did not do the electrical or the sheetrock but we did the rest.