2-car garage to ADU: 20 x 20 ft, 1 bed, 1 bath, 400 sq ft

I made both window changes, kept everything else as it was, and checked the result in preview.png. - Front wall of the living room: it is now one wide window, 11'-0", running from 2'-0" to 13'-0" measured from the west corner. The front door is still where it was, just east of the window. - Bedroom back wall (north): the window is now 5'-6" wide, from 3'-0" to 8'-6" measured from the west corner. The small bath window stays where it was. I took both window positions as measured from the west outside corner. Measured from the east corner, the 2 ft to 13 ft window would have run over the front door. To make it work I had to change how those two walls are drawn. The step that lines the walls up with your sketch also resized the windows back to their sketch widths. So the front and back walls are now placed straight from the written sizes, and the bedroom window has its own short wall section that is exactly 5'-6" long. The walls are in the same places as before.