This house has a removable roof, and window and door inserts that pop in and out. The roof is printed in two halves, which you can glue together. Print one house, two roof pieces, two windows, one door.
If you want to learn how to create this model yourself, the steps are shown in Chapter 5 of the book Modeling in SketchUp for 3D Printing.
Once you know how to create this model, you can use any shape you like for the windows and doors.