A neglected carriage house — untouched for fifty years — became a fully custom 900-square-foot ADU, rebuilt from the foundation up and designed entirely around the homeowner’s needs. The finished space includes a full kitchen, 1.5 baths, a laundry/mudroom, and two bedrooms with a full bath upstairs, along with transom windows designed around treasured stained glass and finishes chosen for both style and visibility.