Budget: let's just say somewhere between $500K and a $1million.
Here's links for the first floor construction plan and a summary page:
Were the clients older? It seems to be the trend that the master goes on the first floor and than just a few bedrooms and a bath go on the second floor, if any. Mostly because a lot of Americans are getting older and are downsizing from what they had earlier. Or, they don't want to leave their current house or neighborhood.
With a smaller second story that does not line up EXACTLY the way the first story does, as in many colonial homes, the asymmetric layout and the exterior intricacies make the house more appealing to those who don't want a plain look or who emphasize certain spaces over others. Perhaps you have clients who want a house built for entertaining guests, so the foyer, kitchen, dining room, and even great room are all bigger than the bathrooms and bedrooms in the house. Or maybe it's a small family where a one 1/2 story will do just fine. Put the master and kids bedrooms on the first, a study or bonus room/junk room on the second floor. Simple plan, but asymmetric exterior and line of sight.
Your floorplans and exteriors always look good, both in pencil and on the Sketchup application. Keep up the great work as always!