All plumbing is buried below frost line it can reach 35 F below in New Mexico and comes up through the floor. Electrical wiring runs below the floor and above the ceiling. My stack was not usual as I chose to custom fit and notch the final row of bales around the vigas and furred down ceilings. The forgiving nature of this wonderful organic building resource is one of its greatest assets. Once stacked, bales can be kicked, shovel thumped, and trimmed up as needed.
Windows are simple.
Bales are modified and rewired to fit around a dimension lumber buck frame. We mounted the windows 2-3 inches in from the outside and beveled the corners of the bales on the inside to let in more light. Once the bales of straw are stacked, the 18 inch walls are stucco meshed. But unlike adobe walls, walls go up very rapidly. Unlike log or stick framing, very little lumber is required and no insulation is needed.