One of my least favorite parts of a project is its end. During the process of designing and constructing the home, we have built special relationships with homeowners, contractors, and craftspeople which inevitably must change. Often those business relationships become friendships, but there is nothing like being part of that creation (ask any mother).
We work together as a team for as much as several years speaking at least once a week and exchanging ideas even more and then the project ends, the contractors move on to another project, the architects study their work and the homeowners start their new life in a new home. Yes, we are all somewhat changed by the experience.
The good news is that we are often brought back for another addition, guest house or potting shed and the fun begins again. At that point, we are all friends and the process goes even smoother.