Before:  the owners liked their house; they just wished there were more of it.  Particular needs were:  a music room, an in-law suite, a basement level storage bay for the boat, and an upper level open rec room with its own steps (i.e., not accessible from the rest of the second floor).

Before:  the addition will be to the left side of the home, and cannot overshadow the home.  To keep the new ridge below the existing, I had to get creative with the roof geometry! 

After:  the addition's second floor is smaller than the first in order to mirror the existing second story over the existing garage.  Also note that I designed some decorative gables over the garage and the middle of the existing home to repeat the new gable on the addition and tie it all together. 

After:  the in-law suite and the boat storage bay face the rear yard. 

After: the owners' boat now fits in the basement level storage bay, accessible from the rear. 

After:  the existing porch roof plane extends over the front of the new addition.  The porch columns and rails were also redesigned to avoid the "toothpick" effect of too-small posts.