This is completely dependent on the type of project and project size. A sweeping, full-home renovation generally takes around 4-6 months. A renovation complete with an addition takes 5-7 months, and building a custom home takes just less than a year, beginning with a 1-2 month design process. Minor renovations obviously take less time. Bathrooms usually take 2 weeks, and full basements take 4-6 weeks. If either of these require additions, as well as renovations, we usually project that it will take around 2-4 months to build. Depending on the scope of the project, the design and planning phase can take anywhere from 4 weeks to 8 months… Even if this is a time consuming step, it is absolutely worthwhile.